1. Function: answer calls, voice control, play/pause
2. Bluetooth version: V4.2
3. The headset has a built-in 65mAh lithium polymer battery
4. Earphone charging time is about 1 hour / standby is about 60 hours / continuous use is about 4-6 hours
5. Charging case: 1500mAh lithium polymer battery
6. The charging time of the charging box is about 2 hours, after use, put it back into the charging box to charge, the standby time can reach 400 hours