Bluetooth Version: V4.1
Colour: As in the picture Wearing Type: In-ear
Size: 120 x 60 x 35mm Weigt: 58g Chip: CSR Support Agreement: HSP, HFP, A2DP, AVRCP Effective Distance: 10m USB (Universal Serial Bus) Output: DC5V, 3.1A Working Time: About 3H Charging Time: About 1H Charging Method: USB (Universal Serial Bus) Charge or Car Charger