chip：JL6973D4
trumpet Anti group：20Ω±15%
Drive unit：ΦF16mm
Frequency Range：20Hz~20KHz
Horn sensitivity： 114±3dB
rated power：5mW
Wireless propagation distance：Appr.≥10m
Bluetooth version：V5.1
Headphone battery life：about 8-12H
Standby time:>200H
Headphone battery capacity:110 mAh
Charging compartment battery capacity:350mAh