Bluetooth: 5.3
Packing:1set K35 1 drag 2 Microphone kit/1 set 1 drag 1Microphone kit
Style:Lavalier Microphone
Battery capacity:220mAh
Frequency response range: 100HZ-20KHZ
Transmission distance:20m
Signal to noise ratio: ≥ 70db
Endurance:8h