1. Product Overview
The Sanag J20S Bluetooth Sleeping Headphones are designed to provide a comfortable and immersive audio experience, particularly for sleep and relaxation. Featuring 24dB physical noise reduction, a lightweight design, and app control for white noise and EQ adjustments, these earbuds aim to enhance your rest and daily listening.


2. Package Contents
Please check the package for the following items:
- Sanag J20S Bluetooth Sleeping Headphones (Left and Right Earbuds)
- Charging Case
- USB Type-C Charging Cable
- User Manual
3. Setup Guide
3.1 Charging the Headphones and Case
- Place the earbuds into the charging case. Ensure they are properly seated.
- Connect the USB Type-C charging cable to the charging port on the case and to a power source.
- The indicator light on the charging case will show charging status. A full charge typically takes a few hours.

3.2 Initial Pairing (Bluetooth Connection)
- Ensure the earbuds are charged.
- Open the lid of the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth.
- Search for available Bluetooth devices and select "Sanag J20S" from the list.
- Once connected, you will hear an audio prompt, and the indicator light on the earbuds may change.

3.3 App Installation and Connection
- Download and install the Sanag APP from your device's app store.
- Open the Sanag APP and ensure your J20S headphones are connected via Bluetooth.
- The app should automatically detect and connect to your Sanag J20S.

4. Operating Instructions
4.1 Touch Controls
The Sanag J20S headphones feature intuitive touch controls:
- Tap once: Play/Pause music, Answer call
- Double-tap: Previous track (left earbud) / Next track (right earbud), End call
- Triple-tap: Volume + (left earbud) / Volume - (right earbud)
- Four taps: Switch to Game Mode / Music Mode (left earbud), Voice Assistant (right earbud)
- Press and hold for 2 seconds: Reject incoming call
- Press and hold for 3 seconds: Activate Sleep Mode

4.2 Sleep Mode and White Noise
The Sanag APP includes a dedicated sleep function module with various sleep-aiding white noise options and specially adjusted EQ modes. To use:
- Open the Sanag APP.
- Navigate to the 'Sleep Aid Program' or 'White Noise' section.
- Select from dozens of natural white noise sounds (e.g., rain, ocean waves, forest sounds) or sleep aid courses.
- Activate sleep mode via the app or by pressing and holding the earbud for 3 seconds. In sleep mode, the headphones will automatically enter ultra-low power consumption.
- You can also set a cell phone alarm clock through the app, and music will be automatically turned off at the set time.

4.3 HD Call Quality
The headphones are equipped with an HD call algorithm to capture voice more clearly, ensuring smoother conversations.

4.4 Sound Quality
The J20S features a custom 6mm TPU driver and digital enhancement algorithm, delivering Dolby-level stereo sound. The acoustic structure cavity and digital enhancement contribute to a powerful sound experience, reproducing sound details like waves, wind, and rustling leaves.

4.5 Noise Reduction
The earbuds provide 24dB physical noise reduction. The fully wrapped silicone in-ear design creates a closed fit in the ear canal, effectively blocking external noise for a quieter environment.

5. Maintenance
5.1 Cleaning and Care
The ear caps are made of eco-friendly silicone material, which is non-toxic, healthy, and washable. To maintain hygiene and performance:
- Gently remove the silicone ear caps from the earbuds.
- Wash the ear caps with mild soap and water. Rinse thoroughly and allow them to air dry completely before reattaching.
- Wipe the earbuds and charging case with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Ensure the charging contacts on both the earbuds and the case are clean and dry.

5.2 Storage
When not in use, store the headphones in their charging case to protect them from dust and damage, and to keep them charged.
6. Troubleshooting
- No Sound: Ensure the headphones are paired correctly and connected to your device. Check the volume levels on both the headphones and your device.
- Cannot Pair: Make sure the earbuds are charged and in pairing mode (open the case lid). Turn off and on Bluetooth on your device, or try restarting your device.
- Charging Issues: Verify the charging cable is securely connected to both the case and the power source. Ensure the charging contacts on the earbuds and case are clean.
- App Connection Problems: Ensure the Sanag APP is updated to the latest version. Restart the app and your device if necessary.
7. Specifications
| Feature | Specification |
|---|---|
| Model | Sanag J20S |
| Material | Silica Gel, Silicone |
| Earbud Weight | 2.8g per earbud |
| Charging Case Dimensions (W x D x H) | 49.3mm x 60.9mm x 38.4mm |
| Earphone Battery Capacity | 35mAh |
| Charging Case Battery Capacity | 400mAh |
| Battery Life (Sleep Mode) | Up to 10 hours |
| Total Battery Life (with case) | Up to 27 hours |
| Bluetooth Version | 5.4 |
| Maximum Wireless Range | <10m |
| Noise Reduction | 24dB Physical Noise Reduction |
| Driver Diameter | 6mm |
| Frequency Response Range | 50 - 20000Hz |
| Sensitivity | 98dB |
| Charging Voltage | 5V---1A |
| Features | With microphone, Active Noise Cancelling (passive), Sound Isolating, APP Support |
| Certification | CE, FCC, RoHS, WEEE |


8. User Tips
- Optimal Fit: For the best noise reduction and comfort, ensure the silicone ear caps fit snugly in your ear canal. The lightweight design is intended for extended wear, including side sleeping.
- Explore the App: Utilize the Sanag APP's extensive library of white noise and EQ settings to customize your sleep and listening experience. Experiment with different sounds to find what works best for you.
- Regular Charging: To ensure uninterrupted use, especially for overnight sleep, make it a habit to charge your headphones and case regularly.
- Cleanliness: Regularly clean the washable silicone ear caps to prevent bacterial growth and maintain hygiene.
9. Warranty and Support
Sanag is a technology AI audio brand founded in 2014, committed to research, development, design, manufacturing, and brand operation of professional audio and artificial intelligence products. For product support, warranty information, or service inquiries, please refer to the official Sanag website or contact their customer service channels. Keep your proof of purchase for warranty claims.

10. Product Video
Watch this video for a visual overview of the Sanag J20S features and design:





