1. Function: Built-in microphone, can answer the phone, listen to music, etc. 2. Multifunctional use, can be used as Bluetooth headphones, hair bands, sleep eye mask, wrist guards, etc. 3. HIFI binaural stereo sound effect, immersive listening 4. Up to 13-14 hours of battery life, charging 1.5-2 hours 5. Upgraded to a strong leather headband, suitable for more people 6. High-value leather label control button, advanced technology, firm and not off-line 7. Bluetooth module can be disassembled out, headband can be cleaned separately 8. Bluetooth protocol: 5.0 + EDR 9. Transmission range: no obstacle 10 meters or more
