Product Model:ZK109 Earphone battery capacity:30mAH Charging Case Capacity:200mAH Charging Time:<1,5H Charging Port:TYPE-C Transmission distance:>10m Bluetooth Version:V6.0 Battery:5 hours Standby Time:>50 hours Audio Transmission Protocol:A2DP/AVDTP/AVRCP/RFCOMM/HFP/HSPSPP/HID ANC function:NO ENC function:Yes Color:Black, gold, silver
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