1. Introduction
The Sunffice FMEE308-B is a single open-ear Bluetooth headphone designed for comfortable, all-day wear. It features Bluetooth 5.2 connectivity, intelligent noise cancellation, and touch controls, providing a versatile audio solution for various activities while maintaining awareness of your surroundings.
2. Product Overview
Key Features
- Open-ear design (for left ear only)
- Bluetooth 5.2 connectivity for stable connection
- 16mm diameter diaphragm moving coil for enhanced sound
- Dynamic EQ algorithm for frequency adjustment
- Intelligent noise cancellation for clear communication
- Fingerprint touch control for easy operation
- Chinese/English mode switching
- Up to 16 hours of continuous playtime
- 1-hour quick full charge
- Lightweight design (approximately 1.13 ounces)
- Sweat-proof material for durability
- Compatible with iOS, Android, Laptops, and Tablets
Product Diagram
3. Setup
3.1 Charging the Headset
Before initial use, ensure the headset is fully charged. Connect the headset to a power source using the provided Type-C charging cable and a 5V-2A charger or lower. Charge for more than 30 minutes. The charging indicator light will provide status feedback (e.g., solid light during charging, off when fully charged).
3.2 Bluetooth Pairing
- Press and hold the multi-function touch key on the headset for 5 seconds to power it on. The headset will enter pairing mode, indicated by a flashing light.
- On your mobile phone, tablet, or other device, navigate to the Bluetooth settings.
- Search for available devices and select 'YJ-77' from the list to connect.
- Once connected, the indicator light will stop flashing, and you may hear an audible confirmation. The headset will automatically connect to the last paired device upon startup after the first successful connection.
4. Operating Instructions
4.1 Wearing the Headset
The Sunffice FMEE308-B is designed specifically for the left ear. To wear it correctly:
- Place the earhook over the top of your left ear.
- Rotate the headset backward along your ear until the main body rests comfortably and securely in the correct position.
- Adjust for optimal comfort and stability. The open-ear design ensures you can hear your surroundings.
4.2 Touch Controls
The headset features a multi-function touch key for intuitive control:
| Function | Action |
|---|---|
| Answer Call | One touch |
| Reject Call | Long press for 1.5 seconds |
| Hang Up Call | Double touch |
| Play/Pause Music | One touch |
| Next Song | Double touch |
| Previous Song | Three touch |
| Wake Up Voice Assistant | Long touch for 1.5 seconds |
| Power On | Long press for 3 seconds |
| Power Off | Long press for 5 seconds |
4.3 Language Switching
To switch between Chinese and English voice prompts, double-click the multi-function touch key when the headset is not connected to any device.
4.4 Usage Scenarios
5. Maintenance
5.1 Cleaning
Wipe the headset with a soft, dry cloth. Avoid using harsh chemicals, abrasive materials, or excessive moisture, as these can damage the device. Ensure the charging port is dry before connecting the charging cable.
5.2 Storage
Store the headset in a cool, dry place away from direct sunlight and extreme temperatures. When not in use for extended periods, ensure it is fully charged before storage to maintain battery health.
6. Troubleshooting
6.1 No Power
- Ensure the headset is fully charged. Connect it to a power source using the provided Type-C cable and a 5V-2A charger.
- If the issue persists after charging, try performing a power cycle (power off, then power on).
6.2 Cannot Pair with Device
- Ensure the headset is in pairing mode (long press multi-function key for 5 seconds until the indicator light flashes).
- Turn off and then turn on Bluetooth on your device.
- Ensure no other devices are currently connected to the headset.
- Move the headset closer to your device (within 10 meters).
- If the issue persists, try resetting the headset (power off, then power on and re-enter pairing mode) and re-pair.
6.3 Poor Sound Quality
- Check the connection distance; ensure you are within the 10-meter Bluetooth range of your device.
- Verify the audio source quality.
- Adjust the volume on both the headset and your connected device.
- If the issue persists, try re-pairing the headset.
6.4 Important Charging Information
Always use the provided Type-C charging cable and a 5V-2A charger or lower. Using chargers with higher voltage or amperage can damage the device and pose a safety risk. Discontinue use immediately if you notice any unusual heat, deformation, or melting during charging and contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Sunffice |
| Model Name | Single Open Ear Headphone |
| Model Number | FMEE308-B |
| Connectivity Technology | Wireless (Bluetooth 5.2) |
| Bluetooth Range | 33 Feet (10 meters) |
| Ear Placement | Open Ear (Left Ear Only) |
| Audio Driver Type | Dynamic Driver (16mm diameter diaphragm moving coil) |
| Battery Life | Up to 16 Hours (continuous playback) |
| Charging Time | 1 Hour (quick full charge) |
| Control Method | Touch |
| Noise Control | Active Noise Cancellation |
| Water Resistance Level | Water Resistant (Sweat-proof material) |
| Compatible Devices | Mobile Phones, Tablets, Laptops (iOS, Android) |
| Item Weight | 1.13 ounces |
| Material | Plastic |
| UPC | 652569836851 |
8. Official Product Video
9. Warranty and Support
For specific warranty information and customer support, please refer to the product packaging or contact Sunffice customer service directly. Keep your purchase receipt for any warranty claims or technical assistance.
