Product name:JF-331 2.4G hand-held wireless microphone
Relevant parameters:
Emitter length * width * height: 160*15.5mm
Receiver length * width * height: 60*36*17mm
Directivity: capacitive directivity
Sensitivity: -44 (dB)
Frequency range: 40-16K (Hz)
Impedance: 680 ohm
Carrier frequency: 2400-2482Mhz
Modulation: GFSK
RF power: 0dBm
Maximum wireless transmission distance: 10-15 meters
Working voltage: polymer lithium battery 3.7V
Continuous working time: 8-12H