Hoco W23 Brilliant Sound Wireless Headphones - White

"1. Speaker: 40mm 2. Wireless specification Wireless V5.0 JL 3. Supporting protocols A2DP, AVRCP, HSP, HFP 4. Charging voltage DC 5V. Charging time: about 2 hours 5. Call/music time: 8 hours; standby time: 200 hours 6.300mAh Class A polymer battery 7. Size: 186*180*75mm, net weight: 187g 8. Support Wireless, TF card, AUX mode play 9.Voice prompt switch：When not connected, double-click the M button and there will be a beep"