20 meters barrier-free reception of this K8 lavalier wireless microphone.
Frequency range: 2.4GHz.
Frequency response range: 20-30khz.
Transmission delay: 9Ms.
Signal-to-noise ratio(SNR): 64dB.
Input voltage: DC 4.8~ 5.4V.
Charging current: About 65mA.
Battery capacity: 80mAH.
Working time: About 8H.
Charging time: About 80min.
