Wireless Microphone Headset, 2.4 G Wireless Headset Mic/Handheld Mic 2 in 1, 165ft Rang, Headset Portable For Voice Amplifier Mic Speaker PA System
Description:
Input Voltage Range: DC3.5V-5.5V
Modulation Method: GFSK
RF Transmission Power : 10dBm
Transmission Distance: 40m(Unimpeded&Open area)
RX Sensitivity: -88dBm
Sampling Frequency: 16KS/s
S/N Ratio:≥65dB(f=1kHz, P=1Pa A curve)
Maximum Current: ≤40mA
Battery Type: Lithium Ion Battery
Charging Time:<4hours
Continuous Working Time :≥20hours