Material Alumimun Metal housing with 2 battery in both side and Magnet
Bluetooth Chip 4.1 within DSP noise Canclleing
Support HSP/HFP/A2DP/AVRCP
Button function V-/next music/V+/previous/pause/play
Recevier distance 10m/360 degree
Battery Chargeable 3.7v/110mah lithium battery
Charging time About 2 hours
Successive working time About 5 hours