◆Bluetooth Version: V3.0+EDR
◆Frequency:2.402-2.480GHz
◆Bluetooth Profile supported: Headset handsfree profiles A2DP and AVRCP
◆Transmission Distance: 10m/ 30feet
◆Talking Time: 3 hours
◆Music playing time: 4Hours
◆Charging time: 1.5hours
◆With built-in high capacity Li-polymer battery
◆ Has buttons on the headphones for volume, next track and call answering controls