Model SX-948C Quantity 1 Color Black Bluetooth Version v2.1+EDR Ear Coupling Stereo / DJ Talk Time 18 Hour Standby Time 200 Hour Operating Range 10 meter Compatibility HSP HFP A2DP AVRCP Microphone Yes Radio N/A Supports Music Format MP3 Power Supply Built-in battery Built-in Battery Capacity 350mAh Compatible With Iphone Ipad most Bluetooth devices and others with 3.5mm jack Other Features Adopting NdFeB to make bass high pitch stereo and dynamic sound more excellent and natural. Adjustable head band and super soft ear pad for comfortable wearing. Packing List 1 x Bluetooth headphone ? 1 x USB to 3.5mm plug charging cable (90cm) ? 1 x Audio cable (120cm) ? 1 x English user manual