1. Bluetooth chip: Bluetooth 5656
2. Bluetooth version: V5.3
3. Transmission distance: about 15m
4. Battery capacity: 50mAh
5. Charging time: about 1-2h
6. Use time: about 8-12h
7. Left and right frequency: 20Hz-20KHz
8. Impedance: 32 ohm
9. Sensitivity: 85dB/mW
10. Waterproof rating: IPX 5
11. Material: PC+ABS
12. Size: about 3 x 2.5 x 2cm
13. Weight: about 6g

Features:
1. Ear clip design, wear stable and not fall off, no need to enter the ear, not pick the size of the ear
2. HIFI-level sound quality, high-frequency translucent, mid-frequency delicate, low-frequency thick
3. Skin-friendly silicone elbow, bending without deformation, comfortable and sensation-free wearing
4. Fully enclosed sound cavity design, daily waterproof and dustproof, wipe can be cleaned up
5. Bluetooth 5.3 chip, low loss, fast response to data transmission, anti-interference is stronger
6. Left and right ear wear, two headphones only have binaural TWS function
7. Touch operation, convenient and quick
8. Directional sound transmission technology, to protect the privacy of no sound leakage