1. Bone conduction black technology, two-channel, real stereo sound
2. Long battery life, built-in FM, HD calling, HD sound quality
3. Lightweight and small body, easy to carry
4. High sensitivity microphone, diamond knife pattern splitting process
5. The principle of bone conduction, through high-frequency and low-density vibration, the ear bones make a pleasant sound
6. Dual channel, 2 bone conduction transducers
7. Built-in Bluetooth 5.0, FM enhanced IC, TWS wireless stereo
8. Signal to noise ratio: greater than or equal to 70db
9. Shell material: metal
10. Power supply mode: USB charging / built-in lithium battery
11. Waterproof grade: IPX 2
12. Audio decoding: support MP3 / AC3 / AAC / WAV and many other
13. Battery capacity: 400mAh
14. Frequency response range: 20Hz-20KHz
15. Interface type: USB
16. Function: music, call
17. Charging time: 1 hour
18. Playing time: 6 hours
19. Standby time: 240 hours
20. Input current: 0.4A
21. Output power: 3W
22. Input voltage: 5V
23. Dimensions: 40 x 25mm
24. Weight: 35g