Model X-m9 Quantity 1 Color Black + Silver Bluetooth Version v2.1 Ear Coupling Headset Talk Time 13 Hour Standby Time 220 Hour Operating Range Max. 10 meter Compatibility v2.0 / v1.2 Microphone Yes Radio N/A Supports Music Format Depends on the device of the Bluetooth signal transmitter Power Supply Built-in battery Built-in Battery Capacity 180mAh Other Features Compatible with PS3 game and other Bluetooth cell phones with wireless Bluetooth transmitter can chat online Packing List 1 x Bluetooth headphones 1 x 100~240V 2-flat-pin plug charger 1 x USB cable (91cm) 1 x Base charger 1 x English user manual BQB link: https://www.bluetooth.org/tpg/EPL_Detail.cfm?ProductID=18020