W25 Promise wireless headphones, (Black, Gray)

1. Speaker: 40mm
2. Bluetooth specification: Bluetooth V5.0 JL
3. Supporting protocols: A2DP, AVRCP, HSP, HFP
4. Charging voltage: DC 5V Charging time: about 2.5 hours
5. Call/music time: 12 hours; standby time: 200 hours
6. Class A polymer battery: 300mAh
7. Size: 180*150*70mm; Weight: 161g