1. Standby time: about 240 hours
2. Charging time: about 60 minutes
3. Battery capacity 50 mAh
4. Charging power: DC 5 V power supply [round hole interface] (computer USB port, mobile phone charger, car charger)

5. Support incoming voice call, and iPhone shows instant BT battery; Micro switch built-in,support hands-free calls and echo cancellation
6. Compatible phone: compatible for 99% of the BT phone
Packing size: 9.5 * 3.5 * 13 cm
Package: Earphone*1+ USB Charging Cable*1+User Manual*1+Charging Dock Case