1. Product Overview
The B13 Bluetooth Sleep Earphones are designed for ultra-thin, comfortable, and invisible wearing, specifically optimized for sleeping. They feature Bluetooth 5.3 connectivity, smart touch controls, and active noise cancellation to provide a high-quality audio experience in various scenarios.
2. Package Contents
Please check the package for the following items:
- B13 Bluetooth Sleep Earphones (Left and Right)
- Charging Case
- Type-C Charging Cable
- User Manual (this document)
3. Setup and First Use
3.1 Charging the Earphones and Case
Before first use, ensure both the earphones and the charging case are fully charged.
- Connect the provided Type-C charging cable to the charging port on the case and to a power source.
- During charging, the earphones inside the case should light up. If one earphone does not light up, gently press it into its charging slot and ensure it makes proper contact. Charge for at least 3-5 minutes.
- The LED display on the charging case will indicate the battery level.
3.2 Pairing with a Bluetooth Device
- Open the charging case. The left and right earphone indicator lights will flash alternately, indicating they are in pairing mode.
- On your mobile phone or other Bluetooth device, enable Bluetooth and search for available devices.
- Select "B13" (or similar name) from the list of devices to connect.
- Once successfully paired, the earphone indicator lights will go out.
- You can now play audio from your connected device.
4. Operating Instructions
4.1 Wearing the Earphones
The B13 earphones are designed for invisible and comfortable wearing, especially for side-lying during sleep. They do not need to be plugged deep into the ear canal, reducing pressure and discomfort.
4.2 Touch Controls
The B13 earphones feature intuitive touch controls for easy management of audio and calls:
- **Single Click:** Play/Pause music, Answer/Hang up calls.
- **Double Click:** Adjust Volume (e.g., left earbud for volume down, right for volume up).
- **Triple Click:** Activate Voice Assistant.
- **Long Press:** Switch tracks (e.g., left earbud for previous track, right for next track).
5. Maintenance and Care
- **Cleaning:** Regularly wipe the earphones and charging case with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- **Water Resistance:** The earphones are waterproof and sweat-proof, making them suitable for exercise and light rain. However, they are not designed for swimming or submersion in water.
- **Storage:** When not in use, store the earphones in their charging case to protect them from dust and damage. Keep them in a cool, dry place away from extreme temperatures.
- **Battery Longevity:** To prolong battery life, avoid fully discharging the earphones frequently. Charge them regularly, even if not in constant use.
6. Troubleshooting
- **Earphones not charging:** Ensure the charging cable is securely connected and the earphones are properly seated in the charging case. If one earphone doesn't light up, press it firmly into its slot and charge for 3-5 minutes.
- **Earphones not pairing/connecting:** Make sure Bluetooth is enabled on your device and the earphones are in pairing mode (flashing lights). Forget the device from your phone's Bluetooth settings and try pairing again. Ensure the charging case has sufficient battery.
- **No sound from one earphone:** This can happen if pairing is not prioritized correctly. Ensure both earphones are in pairing mode (alternating flashing lights) before connecting to your device. If already connected, try resetting the earphones and re-pairing.
- **Low volume or poor sound quality:** Check the volume levels on both your device and the earphones. Ensure the earphones are clean and free from debris.
- **Earphones lights stay on during use:** The indicator lights should turn off after successful pairing and during normal use. If they remain on, try placing them back in the case and taking them out again, or restarting your device.
7. Specifications
| Feature | Specification |
|---|---|
| Brand Name | Wireless Earbuds |
| Model | B13 |
| Material | Metal, PVC, ABS, Plastic |
| Weight (single earbud) | Approx. 3.2g |
| Battery Capacity | 350 mAh |
| Battery Life (continuous play) | Up to 12 hours (earbuds), 48 hours (with charging case) |
| Charging Time | Approx. 1 hour |
| Standby Time | Up to 240 hours |
| Charging Method | Type-C |
| Bluetooth Version | 5.3 |
| Maximum Wireless Range | 10m-20m |
| Earcups Type | Sealed |
| Max Output | 42mW |
| Number Of Drivers | 2 |
| Headphone Pads Material | Silicone |
| Magnet Type | Neodymium |
| Driver Diameter | 13mm |
| Total Harmonic Distortion | 0.1% |
| Impedance Range | Up to 32 Ω |
| Frequency Response Range | 500 - 2000Hz |
| Sensitivity | 32dB |
| Features | Waterproof, With microphone, Active Noise Cancelling, Sound Isolating, Control Button, Volume Control, Support APP |
| Codecs | AAC, SBC |
| Voice Assistant Built-in | No |
| Support Memory Card | No |
| Certification | CE, FCC |
| Origin | Mainland China |
8. User Tips
- **Charging Case:** The earphones come with a compact charging case, which also serves as a protective storage box.
- **Indicator Lights:** The indicator lights on the earphones are primarily for charging and pairing status. They should turn off once successfully paired and during normal audio playback to avoid disturbance, especially during sleep.
- **Charging Cable:** The earphones use a Type-C cable for charging, which is included in the package.
- **Sleep Mode:** The earphones are designed to be worn comfortably while sleeping. Some models may have a feature that pauses playback after a certain period (e.g., 1 hour) if no activity is detected, to conserve battery.
9. Warranty and Support
The B13 Bluetooth Sleep Earphones undergo strict quality inspection and certification to ensure an excellent user experience. For any product-related issues or inquiries, please contact the seller's customer service for support. We are committed to providing comprehensive after-sales service.
