General Description Bluetooth Version V2.1 with EDR Frequency Range 2.4GHz - 2.48GHz Transmission Distance 15m Talking Time Above 12 Hours Standby Time About 260 Hours Are you a music lover, and pursue for perfect music bluetooth for long time? Our new DT120-probably the finest sound quality headphone perfectly suit you! With it"s beeper alert and A2DP high definition sound, supporting micro-SD card (up to 4GB) , this MP3 format Bluetooth headset enables you to make phone call and listen music.Plus it has excellent long standby time and play.•Bluetooth Version: V2.1 with EDR•Bluetooth head set with buzzer•Operating Distance: 15m•Battery: Built-in rechargeable li-on polymer battery•Charging Plug:A/C charger•Dimensions:160mm*125mm*70mm•Headset Weight:Around 105 g•VOIP:Support•Multipoint Technology:No•Music Streaming:Yes•Multi-function Button On/Off:Yes•Standard Bluetooth Features:Yes•Standby Time (hrs):260•Talk Time (hrs):12Package included1 X Stereo headset1 X AC charger1 X User manual