Bluetooth version: v4.0 support A2DP, AVRCP
Wireless distance: more than 10m
Built-in battery: 600mAh
Working hours: more than 8 hours
Charging voltage: DC 5V
Charging hours; about 2 hours
Audio input / output connection: 3.5mm Audio stereo audio port
Compatibility: compatible with phones and PAD of Android / iOS system, and all bluetooth audio devices.