Small horn sport bluetooth headset with bluetooth headset 4.1.

1: bluetooth version 4.1.
2: within a distance of 10 meters.
3: support devices, computers, mobile phones, game consoles, tablets, etc.
4: battery capacity 60MAH.
5: no drag and 2 functions are supported.
6. Featured, lightweight sports headphones.
7: call function, click the answer to listen to the long press, click hang on the call, double-click on the last number from the broadcast.
8: support power back connection.
9: working status to about 2 to 3 hours.
10: support to play music, up and down, pause, volume add and subtract.
Calibration of the whole machine :(this quotation is for the whole machine quotation)
Whole set of accessories: charging cable, instructions, ear cap, paper box.