Brand ZONOKI Model Z-B97 Quantity 1 Color Black + grey Bluetooth Version V2.1 + EDR Ear Coupling Sport Talk Time 6 Hour Standby Time 100 Hour Operating Range 10 meter Compatibility V2.1 + EDR Microphone No Supports Music Format MP3 Compatible With No Built-in Battery Capacity 150mAh Other Features Interface: Micro USB; Bluetooth V2.1 + EDR (A2DP stereo transmission); Audio range: 20Hz~20000Hz; Frequency range: 2402MHz~2480MHz; Sensitivity: -80dBm; Wireless transmitter standard: Class 2; Channel: 79-channel of 1MHz BW; Contract terms: Point to point; S/N rate: >80dBm; Speaker power rate: 2 x 10W; Supports software agreement: AD2P1.2 HFP1.5 AVRCP1.0 HSP; Battery: Rechargeable polymer lithium battery (3.7V 150mAh); Charging time: <3 hours; Working time: 6 hours; Standby time: 100 hours Packing List 1 x Bluetooth headphones 1 x USB cable (102cm) 1 x Chinese / English user manual