cheap price dual-channel conversion fm wireless karaoke microphone

Categories	WIRELESS MICROPHONE SYSTEM
Trademark/Brand	Sinbosen\| Audio sound system manufacturer
Model	SU-39
Frequency range	740-790MHz
Available Band Width	50MHz
Channel number	200
Channel spacing	250KHz
Frequency stability	±0.005%
Dynamic range	100dB
Terms of Payment	Western Union, MoneyGram, T/T, Paypal
Update Time	Oct 29,2025

Detail Information

Microphone use two AA batteries, continued up to 10-15 hours.

Double Conversion Super Heterodyne, with a high receiver sensitivity.

Infrared frequency, automatic synchronization lock the transmitter frequency.

Receiver automatically scans and locks the current environment is best to use free channels.

RECEIVER
Receive mode	Double Conversion Super Heterodyne
Intermediate frequency	The first medium frequency:100MHz The second medium frequency:10.7MHz
Wireless interface	BNC/500Ω
Sensitivity	12dB u V（80 dBS/N）
Spurious rejection	≥75dB
Sensitivity adjustment range	12-32dBV
Maximum output level	+10dBV
TRANSMITTER
Output power	High:30mW；Low：3mW
Spurious rejection	-60dB
Voltage	Two AA batteries
Current utility time	High:＞10 hours Low:＞15 hours

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