Model Name: KH-M100 Communication Method: Bluetooth Standard Ver. 4.2 Output: Bluetooth Standard Power Class 2 Maximum Communication Distance: Approximately 10m * Supported Bluetooth Profiles: A2DP/AVRCP/HFP Supported Codec: SBC Supported Content Protection: SCMS-T method Battery Life: (Varies depending on usage conditions) Approximately 6 hours (music playback) Approximately 4 hours (call) Approximately 85 hours (standby) Charging Time: Approximately 2 hours Weight: 9g (including built-in lithium polymer rechargeable battery) Included Accessories: USB charging cable Ear tips (spare)