Style:In-Ear Communication:Wireless Connectors:Bluetooth Use:Mobile Phone Function:Bluetooth Color:Black,Orange,Multi,Blue,Green,Gray,Brown Bluetooth version:4.1 + EDR Bluetooth profiles:HSP, HFP, A2DP and AVRCP Bluetooth operating distance:10 meters (equal to 33 feet) Charging time (fully charge):Approximate 2 hrs Working time:Music time 4 hours, talk time 5 hours Unit weight:Approx. 50g Show More