New Hands-free Stereo Wireless Bluetooth 4.0 Headset LC-B40 for Mobile iphone 5/5s/5 Type: Bluetooth Headset Talk Time: About 5 hours Music Time: About 5 hours Standby Time: UP to 100 hours Charge Time: 1.5 hours Operating Range: 10m Bluetooth Version: 4.0 Bluetooth Profile: Headset ?HFP?A2DP?AVRCP