Searching for the best red light therapy mask in 2026? The top pick, Wavytalk Red Light Therapy Mask, offers comprehensive face coverage with high-quality near-infrared (NIR) and LED lights. For those focused on acne, the Blue/Red LED Mask provides targeted blue light benefits, while the 4D Contour-Fit Mask stands out for its versatility and comfort. The main tradeoffs across these masks include balancing price, ease of use, light spectrum options, and coverage area. Keep reading for a detailed comparison to help you choose the right device for your skincare goals.
Key Takeaways
- The most versatile masks combine multiple light modes and adjustable brightness for personalized treatments.
- Coverage area and mask fit significantly influence treatment effectiveness and comfort during use.
- Wireless and remote-controlled models offer greater convenience but often come at a higher price.
- Higher wavelength LEDs (850nm and 630nm) tend to deliver deeper skin benefits, but may increase cost.
- FDA clearance and certifications can indicate a safer, more reliable product, especially for sensitive skin.
| Wavytalk Red Light Therapy Mask for Face, Glow Time LED Face Mask 850nm NIR |  | Best Overall | Wavelengths: 630nm red, 850nm near-infrared, 415nm blue, 590nm amber | LED Chips: 456 high-purity | Power Density: 40mW/cm² | VIEW ON AMAZON | See Our Full Breakdown |
| INIA Red Light Therapy Mask for Face, 850nm NIR, Red/Blue LED Light 4 Modes |  | Best for Customization | Wavelengths: 630nm red, 850nm near-infrared, 460-470nm blue | LED Chips: 220 high-energy | Energy Output: up to 105mW/cm² | VIEW ON AMAZON | See Our Full Breakdown |
| Red Light Therapy Mask for Face Acne and Wrinkles |  | Best for Targeted Concerns | Wavelength Modes: 460nm, 590nm, 660nm, 850nm | LED Beads: 400 | Intensity Levels: 3 | VIEW ON AMAZON | See Our Full Breakdown |
| Red Light Therapy Mask Set with Five-Level Brightness Adjustment, 630nm Infrared + 850nm Near-Infrared LEDs, Portable Black Mask for Face and Neck |  | Best for Versatile Targeting | Wavelengths: 630nm infrared, 850nm near-infrared | Brightness Levels: Five | Application: Face and neck | VIEW ON AMAZON | See Our Full Breakdown |
| Red Light Therapy Mask for Face & Neck, Wireless LED Face Mask, 4 Modes |  | Best for Travel and Convenience | Light Beads: 680 | Modes: 4 | Battery Capacity: 2000mAh | VIEW ON AMAZON | See Our Full Breakdown |
| INIA Red Light Therapy Mask for Face, 850nm NIR, Red/Blue LED Light 4 Modes |  | Best Advanced Multi-Wavelength Mask | Wavelengths: 620nm, 630nm, 460–470nm, 850nm | LED Chips: 220 | Energy Output: up to 105mW/cm² | VIEW ON AMAZON | See Our Full Breakdown |
| Red Light Therapy for Face, 4 Modes, Wireless 2000mAh Remote |  | Best Portable Multi-Mode Device | Light Modes: 850nm Infrared, 630nm Red, 600nm Amber, 460nm Blue | Battery: 2000mAh rechargeable | LED Beads: 360 beads (90 LEDs) | VIEW ON AMAZON | See Our Full Breakdown |
| 4D Contour-Fit LED Light Therapy Mask for Face & Neck, Red Light Therapy Mask with 7 Colors & NIR Light, Rechargeable Cordless Facial Mask for At-Home Skincare |  | Best Multi-Color 8-in-1 Design | LED Count (Face): 272 | LED Count (Neck): 128 | Color Modes: 7 | VIEW ON AMAZON | See Our Full Breakdown |
| Red Light Therapy Mask for Face, Wireless LED Face Mask with 272 LEDs |  | Best Lightweight Multi-Wavelength Mask | Light wavelengths: 620nm red, 850nm near-infrared, 460nm blue | LED count: 272 | Irradiance: 27mW/cm² | VIEW ON AMAZON | See Our Full Breakdown |
| Red Light Therapy for Face, FDA-Cleared Blue Light Mask for Acne |  | Best FDA-Cleared Acne & Skin Renewal Mask | Light Wavelengths: 415nm blue, 630nm red, 850nm near-infrared, 590nm amber | LED Chips: 432 | Power Density: 40mW/cm² | VIEW ON AMAZON | See Our Full Breakdown |
More Details on Our Top Picks
Wavytalk Red Light Therapy Mask for Face, Glow Time LED Face Mask 850nm NIR
This mask stands out for its multi-wavelength design, combining red, near-infrared, blue, and amber lights to target multiple skin concerns simultaneously. Unlike the INIA mask, which offers fewer wavelengths, the Wavytalk provides comprehensive coverage for wrinkles, acne, and dullness, with clinically proven results in just 28 days. Its full-face coverage with 456 LEDs ensures even light distribution, while adjustable fit enhances comfort. However, the need for regular use—3 to 5 times weekly—and the absence of the charger and battery make it less convenient for spontaneous treatments. This pick is best suited for dedicated users seeking visible results within a month and who don’t mind regular routines.
Pros:- Clinically proven results in 28 days
- Multi-wavelength therapy addresses various skin concerns
- Full-face coverage ensures even light distribution
- Adjustable fit for personalized comfort
Cons:- Battery and charger not included, requiring additional purchase
- Needs consistent use 3-5 times weekly for optimal results
- Potential discomfort if not properly adjusted
Best for: Individuals committed to consistent skincare routines and seeking multi-wavelength therapy for comprehensive skin improvement
Not ideal for: Casual users or those seeking a portable, all-in-one device without the hassle of regular recharging and setup
- Wavelengths:630nm red, 850nm near-infrared, 415nm blue, 590nm amber
- LED Chips:456 high-purity
- Power Density:40mW/cm²
- Battery:2500mAh (not included)
- Charging:USB-C, 5V/1A (not included)
Our verdict“This mask is ideal for users dedicated to regular, multi-faceted skincare routines aiming for noticeable improvements within a month.”
INIA Red Light Therapy Mask for Face, 850nm NIR, Red/Blue LED Light 4 Modes
The INIA mask offers dual wavelengths—red (630nm) and near-infrared (850nm)—to promote collagen and skin renewal. Compared to the Wavytalk, it emphasizes customizable modes, allowing users to tailor treatments for specific concerns, with four modes and adjustable timers. Its rechargeable design with up to 105mW/cm² energy output supports deeper skin penetration, but the multiple modes can be overwhelming for beginners, and consistent long-term use is necessary to see results. This device is better suited for users who value personalized therapy sessions over simple, set-it-and-forget-it routines.
Pros:- Dual-wavelength design promotes deep collagen production
- Four customizable modes for tailored treatments
- Rechargeable with adjustable timer
- Salon-grade therapy at home
Cons:- Requires consistent use over weeks for visible results
- Multiple modes might confuse new users
- Less effective for severe or urgent skin issues
Best for: Skincare enthusiasts who want flexible, customizable light therapy options for targeted skin concerns
Not ideal for: Beginners or casual users who prefer straightforward, one-button devices and quick routines
- Wavelengths:630nm red, 850nm near-infrared, 460-470nm blue
- LED Chips:220 high-energy
- Energy Output:up to 105mW/cm²
- Battery Capacity:2600mAh
- Session Timer Options:10, 20, 30 minutes
Our verdict“This mask suits those who appreciate personalized, flexible treatments and are willing to commit to a routine over time.”
Red Light Therapy Mask for Face Acne and Wrinkles
This mask excels at addressing specific skin issues like acne and wrinkles with four wavelength modes and 400 LEDs. Its adjustable intensity and timer provide personalized treatments, making it more versatile than simpler devices. The wireless, rechargeable design adds convenience, but the need for consistent, several-week use and the inclusion of an eye shield may be drawbacks for some users seeking quick fixes. Compared with higher-end models, its fewer LEDs and potentially slower results make it more suitable for light to moderate concerns. This product is ideal for users prioritizing targeted treatment at home without the bulk of larger devices.
Pros:- Multiple wavelength modes target diverse skin concerns
- Adjustable intensity and timer for personalized use
- Wireless and rechargeable for convenience
- Comfortable fit with adjustable straps
Cons:- Requires several weeks of consistent use for noticeable results
- Less effective on severe skin problems
- Inclusion of eye shield may be inconvenient for some
Best for: Individuals dealing mainly with mild to moderate acne or early signs of aging who want a portable, adjustable device
Not ideal for: People with severe skin issues requiring intensive or rapid therapy, or those who dislike wireless devices with adjustable settings
- Wavelength Modes:460nm, 590nm, 660nm, 850nm
- LED Beads:400
- Intensity Levels:3
- Timer Options:5/10/20 minutes
- Material:Silicone
- Power:Rechargeable, wireless
Our verdict“Best suited for users seeking a portable, customizable device for mild to moderate skin concerns over time.”
Red Light Therapy Mask Set with Five-Level Brightness Adjustment, 630nm Infrared + 850nm Near-Infrared LEDs, Portable Black Mask for Face and Neck
This mask provides concentrated red and near-infrared light therapy for both face and neck, with five brightness levels that allow precise control. Its ergonomic and portable design makes it easy to incorporate into daily routines, especially for those who want to treat multiple areas simultaneously. Compared to the wireless masks, it emphasizes targeted, adjustable treatment but offers limited details on treatment duration and battery life, which could impact long-term convenience. Its straightforward, targeted approach makes it more suitable for users who prefer a specific, focused therapy session. This product is best for those who want a dedicated, adjustable treatment for both face and neck at home.
Pros:- Effective targeted red and near-infrared light for skin revitalization
- Five adjustable brightness levels for personalized sessions
- Ergonomic, hands-free design for ease of use
- Portable for at-home use
Cons:- Limited info on treatment duration and frequency
- No details on battery life or charging time
- Potentially more expensive than simple masks
Best for: Users seeking a targeted, adjustable therapy device for face and neck revitalization in a portable format
Not ideal for: People looking for a comprehensive, multi-wavelength device or those who prefer wireless operation for flexibility
- Wavelengths:630nm infrared, 850nm near-infrared
- Brightness Levels:Five
- Application:Face and neck
- Portability:Yes
- Color:Black
Our verdict“Ideal for users who want a focused, adjustable face and neck treatment with portable convenience.”
Red Light Therapy Mask for Face & Neck, Wireless LED Face Mask, 4 Modes
This lightweight, wireless mask with over 680 LEDs covers face, neck, and chest, making it one of the most comprehensive portable options. Its four modes allow for customized treatments, and the rechargeable design supports up to 120 minutes of use per charge. Compared to the Wavytalk or INIA masks, it emphasizes mobility and convenience, but the large number of LEDs and multiple modes mean it requires careful reading of the manual to optimize use. Its limited weekly usage recommendation (3-4 sessions) and reliance on user familiarity with settings make it less suitable for those seeking a plug-and-play solution. This choice makes the most sense for frequent travelers or busy individuals who need effective, portable skincare on the go.
Pros:- Full coverage with over 680 LEDs for effective therapy
- Wireless and rechargeable for maximum portability
- Multiple modes for versatile skincare routines
- Soft silicone material suitable for sensitive skin
Cons:- Manual reading required to maximize benefits
- Limited usage time per week (3-4 sessions)
- Potentially more expensive than basic masks
Best for: Travelers and busy professionals who want a full-coverage, versatile, wireless mask for regular skincare routines
Not ideal for: Users who prefer simple, one-touch devices or those with severe skin issues needing intensive therapy
- Light Beads:680
- Modes:4
- Battery Capacity:2000mAh
- Charging:Type-C
- Usage Time:120 mins per week
Our verdict“Best suited for frequent travelers or those needing a portable, multi-mode device for ongoing skincare routines.”
INIA Red Light Therapy Mask for Face, 850nm NIR, Red/Blue LED Light 4 Modes
This mask stands out for its dual-wavelength design, combining red, blue, and near-infrared light to target multiple skin concerns in one device. Compared to the Red Light Therapy for Face, 4 Modes, Wireless 2000mAh Remote, the INIA offers deeper skin support thanks to its 850nm NIR wavelength, which can improve collagen production and elasticity more effectively. Its four customizable modes allow tailored treatments, but this flexibility comes with a higher price and the need for consistent use over several weeks to see visible results. The larger LED count and higher energy output make it more effective, yet its complexity and cost might be a barrier for casual users. This pick makes the most sense for dedicated skincare enthusiasts seeking comprehensive, multi-wavelength therapy at home.
Pros:- Dual-wavelength design for comprehensive skin support
- Customizable light modes for targeted treatments
- High-energy LED chips for effective therapy
- Rechargeable with adjustable session timers
Cons:- Requires several weeks of regular use to see results
- Higher price point compared to basic masks
- Potentially complex for first-time users
Best for: Skincare aficionados who want a versatile, multi-wavelength device capable of addressing multiple skin concerns with customizable modes.
Not ideal for: Beginners or casual users who prefer simple, low-cost options and are not willing to commit to consistent, long-term use.
- Wavelengths:620nm, 630nm, 460–470nm, 850nm
- LED Chips:220
- Energy Output:up to 105mW/cm²
- Battery:2600mAh rechargeable
- Session Timer:10, 20, 30 minutes
Our verdict“This device is best suited for serious skincare users seeking deep, customizable therapy with visible results over time.”
Red Light Therapy for Face, 4 Modes, Wireless 2000mAh Remote
This wireless device offers four distinct light modes, including infrared, red, amber, and blue, giving users flexible options for various skin issues. Unlike the INIA Mask, which is more comprehensive, this model prioritizes portability and ease of use, making it ideal for on-the-go routines. Its rechargeable remote control simplifies operation, but it lacks detailed specifications on device longevity and clinical validation, raising questions about long-term effectiveness. The adjustable light intensities and timers make it customizable, yet the device’s durability and consistent performance over time remain uncertain. This choice is perfect for those who want versatile, travel-friendly skincare with multiple light options.
Pros:- Wireless remote control for hands-free use
- Multiple light modes for varied skincare needs
- Rechargeable battery enhances portability
- Adjustable light intensities and timers for customization
Cons:- Limited information on device durability
- Uncertain long-term effectiveness
- Charging interruptions may disrupt sessions
Best for: Travelers or busy individuals seeking a compact, wireless device with multiple light modes for flexible skincare routines.
Not ideal for: Users looking for an in-depth, professional-grade device or those with severe skin issues needing clinical validation.
- Light Modes:850nm Infrared, 630nm Red, 600nm Amber, 460nm Blue
- Battery:2000mAh rechargeable
- LED Beads:360 beads (90 LEDs)
- Light Intensities:3 levels
- Timer Settings:10, 15, 20, 25, 30 minutes
Our verdict“This mask suits users wanting a versatile, portable device with multiple light options for casual, at-home or travel skincare.”
4D Contour-Fit LED Light Therapy Mask for Face & Neck, Red Light Therapy Mask with 7 Colors & NIR Light, Rechargeable Cordless Facial Mask for At-Home Skincare
This mask’s standout feature is its 8-in-1 functionality, combining seven color modes plus infrared light for a comprehensive approach to skin brightness, smoothness, and overall appearance. Its ergonomic 4D curved design offers exceptional comfort, especially compared to flatter masks like the Red Light Therapy Mask for Face, Wireless LED Face Mask. The cordless, rechargeable setup supports flexible use, but the multiple color options could overwhelm beginners, and the device’s higher price might deter casual users. The 4000mAh battery supports prolonged use, yet some may find the complexity of settings unnecessary. This mask is ideal for skincare enthusiasts who want a customizable, multi-faceted treatment experience in one device.
Pros:- Eight-in-one design with multiple color modes and NIR
- Ergonomic fit for enhanced comfort
- Cordless and rechargeable for ease of use
- Includes accessories for extended routines
Cons:- Higher cost may be prohibitive for some
- Complex settings could be confusing for beginners
- Regular recharging needed for frequent use
Best for: Skincare enthusiasts seeking a versatile, full-featured mask that combines multiple colors and infrared light for targeted, comprehensive treatment.
Not ideal for: Users new to light therapy or those on a tight budget who prefer straightforward, simple devices without extensive options.
- LED Count (Face):272
- LED Count (Neck):128
- Color Modes:7
- Light Types:Red, NIR, and 5 others
- Battery Capacity:4000mAh
- Adjustable Levels:3
Our verdict“This device is best for dedicated users wanting a customizable, multi-color, cordless light therapy experience for holistic skincare.”
Red Light Therapy Mask for Face, Wireless LED Face Mask with 272 LEDs
This mask offers a streamlined, 4-in-1 multi-wavelength approach, combining red, near-infrared, and blue lights in a lightweight, wireless design. Compared with the INIA Mask, which emphasizes deep support with its 850nm wavelength, this model balances convenience and broad coverage, ideal for users who want quick, targeted treatments without complexity. Its 272 LEDs ensure full-face coverage, and the auto 10-minute timer facilitates consistent sessions. However, its lighter build may deliver less intense therapy and could be less effective for severe skin conditions. The adjustable straps improve fit but may need frequent readjustments during use. This mask is perfect for busy individuals seeking a lightweight, easy-to-use solution for moderate skincare needs.
Pros:- Multiple wavelengths support broad skincare goals
- Wireless and lightweight for convenience
- Auto 10-minute timer ensures consistent sessions
- Full-face coverage with 272 LEDs
Cons:- Less intense therapy compared to higher-powered masks
- Requires regular charging, which may interrupt use
- Adjustable straps might need frequent readjustment
Best for: Individuals seeking a lightweight, wireless mask with multiple wavelengths for moderate skincare routines on a busy schedule.
Not ideal for: People with severe skin concerns or who need deep, intensive therapy may find this mask less effective.
- Light wavelengths:620nm red, 850nm near-infrared, 460nm blue
- LED count:272
- Irradiance:27mW/cm²
- Weight:145g
- Battery capacity:1000mAh
- Session duration:10 minutes
Our verdict“This mask suits users wanting an easy-to-wear, multi-wavelength device for regular, moderate skincare routines.”
Red Light Therapy for Face, FDA-Cleared Blue Light Mask for Acne
This mask’s main advantage is its FDA clearance, offering reassurance of safety and proven effectiveness for acne and skin renewal. Its full-face coverage with 432 medical-grade silicone ensures a comfortable fit, similar to the INIA Mask, but with a focus on acne reduction through blue and red wavelengths. While the FDA clearance supports safety, results can vary widely depending on individual skin responses, and consistent use over weeks is necessary for noticeable improvements. Its multiple modes allow tailored treatments, yet it may be less suited for those seeking anti-aging benefits beyond acne. The device’s dual modes make it ideal for targeted acne management, but it’s less comprehensive for broader skin concerns. This mask is best for users prioritizing safety and acne treatment with proven credentials.
Pros:- FDA-cleared for safety and efficacy
- Full-face coverage with medical-grade silicone
- Multiple targeted modes for personalized acne treatment
- Supports skin renewal and blemish reduction
Cons:- Results depend heavily on consistent use
- Less effective for severe or cystic acne
- Longer timeframes needed for visible improvements
Best for: Individuals with mild to moderate acne who want a clinically validated device for safe, at-home treatment.
Not ideal for: Users seeking extensive anti-aging or skin tightening benefits beyond acne and renewal.
- Light Wavelengths:415nm blue, 630nm red, 850nm near-infrared, 590nm amber
- LED Chips:432
- Power Density:40mW/cm²
- Coverage:Full face
- Session Duration Options:10, 15, 20 minutes
- Recommended Use:3–5 times weekly
Our verdict“This mask is ideal for safety-conscious users targeting acne with clinically supported treatment options.”
How We Picked
The products in this roundup were evaluated based on performance, usability, build quality, and value. We prioritized masks with proven light spectrum options effective for skin health, such as red and near-infrared wavelengths. Ease of use, including adjustable brightness and wireless operation, was also key, along with durability and safety features. Because price varies widely, we considered whether the added features justified the higher cost. Our ranking reflects a balance of these factors, aiming to recommend options suitable for different needs, from beginners to advanced users.Factors to Consider When Choosing Red Light Therapy Mask
Choosing the right red light therapy mask involves more than just selecting the most popular model. Consider your specific skincare goals—whether reducing wrinkles, combating acne, or improving overall skin tone—and match these with the device’s features. Pay attention to light wavelengths, coverage area, and control options to ensure the mask fits your routine. Additionally, think about comfort and ease of use; a bulky or complicated device can hinder regular treatment. Safety certifications and product durability should also factor into your decision, especially for long-term use.Light Spectrum and Wavelengths
Different wavelengths penetrate the skin to produce specific benefits. Red light around 630-660nm is excellent for boosting collagen and reducing wrinkles, while near-infrared light at 850nm reaches deeper tissues for more significant skin rejuvenation. Blue light, often included for acne treatment, targets bacteria but offers less overall skin tightening. When selecting a mask, ensure it provides the wavelengths aligned with your goals, and consider models that combine multiple spectra for broader benefits.
Coverage Area and Fit
A mask that covers your entire face uniformly ensures consistent treatment. Look for designs that contour well and stay securely in place without discomfort. Some masks include neck or even eye coverage, which can enhance results but may increase size and weight. Avoid overly bulky models if comfort or ease of wearing is a priority, especially if you plan to use the device regularly. Proper fit also minimizes light leakage, maximizing treatment efficacy.
Ease of Use and Controls
Ease of operation is vital for maintaining a consistent routine. Wireless models with remote controls or adjustable brightness levels simplify use, especially for longer sessions. Touch controls or app connectivity can add convenience but may introduce complexity or compatibility issues. Consider how intuitive the device is to operate, and whether it offers timers or preset modes. Simplicity often encourages regular use, which is key to seeing benefits.
Safety and Certification
Safety certifications, like FDA clearance or CE marking, provide assurance that the device meets certain standards for safety and efficacy. For sensitive skin or medical conditions, these certifications become even more important. Look for masks with protective features such as eye shields or automatic shut-off. Avoid devices with questionable build quality or unclear safety claims, as improper use of light therapy can cause discomfort or skin irritation.
Price and Additional Features
Prices for red light therapy masks vary widely, often reflecting the number of features, wavelengths, and coverage quality. Decide whether you need basic functionality or advanced features like multiple light modes, adjustable brightness, or portability. Higher-priced models tend to offer better build quality and more comprehensive treatment options, but budget-friendly options can still be effective if they meet your core needs. Consider your long-term commitment and whether investing in a premium device aligns with your skincare goals.
Frequently Asked Questions
Can I use a red light therapy mask every day?
Most manufacturers recommend using red light therapy masks 3-5 times per week for optimal results, but daily use is generally safe if the device is approved and used according to instructions. Overuse can sometimes cause skin irritation or dryness, especially for sensitive skin types. It’s best to start with shorter sessions and gradually increase frequency, observing how your skin responds. Consulting with a dermatologist can also help determine a personalized treatment schedule.
Are red light therapy masks safe for sensitive skin?
Yes, red light therapy masks are typically safe for sensitive skin when used properly. Look for devices with gentle wavelengths and features like automatic shut-off to prevent overexposure. Start with shorter sessions and lower brightness settings to assess your skin’s response. If you experience irritation or discomfort, discontinue use and consult a skincare professional. Always follow the manufacturer’s guidelines for safe operation and maintenance.
How long does it take to see results with a red light therapy mask?
Individual results vary depending on skin condition and usage frequency, but many users notice improvements in skin tone and texture within 4-6 weeks of consistent use. For wrinkles and fine lines, more extended periods—up to 12 weeks—may be necessary to see significant changes. Patience and regular application are key, alongside complementary skincare routines like moisturizer and sun protection.
Can I wear makeup or skincare products during treatment?
It’s generally recommended to use red light therapy masks on clean, bare skin for maximum absorption. Applying makeup or skincare products before treatment can interfere with light penetration and reduce effectiveness. After sessions, wait until your skin dries completely before applying makeup or moisturizer. Some users find that cleansing their face beforehand enhances results, but always follow the device’s specific instructions.
What should I consider if I want a portable red light therapy mask?
Portability often means a lighter, more compact design with rechargeable batteries and wireless operation. These models offer convenience for travel or on-the-go use but may have fewer features or smaller coverage areas than larger, corded devices. Consider battery life, charging options, and whether the size affects treatment coverage. While portable masks are great for flexibility, verify that they still deliver effective wavelengths and have a solid build quality for durability.
Conclusion
For those new to red light therapy, a simple, affordable mask with basic features like the Blue/Red LED Mask offers an easy introduction. If you seek the best overall performance, the Wavytalk Red Light Therapy Mask combines coverage, multiple wavelengths, and user-friendly controls. Buyers prioritizing luxury features and maximum customization should consider premium options like the 4D Contour-Fit Mask. Meanwhile, users with specific concerns like acne may prefer targeted blue and red light devices, such as the FDA-Cleared Blue Light Mask. Ultimately, your choice depends on your skincare goals, budget, and comfort preferences—this guide helps you match your needs with the right device.
