product manual:
UHF ultra-high frequency band, less interference than traditional VHF band, more reliable transmission;
DPLL digital phase-locked loop multi-channel frequency synthesizing technology, in the 50MHZ frequency range, with 250KHZ channel spacing
Up to 200 channel selections, convenient for multiple sets of machines to use at the same time, easily avoid all kinds of interference;

Advanced auto-frequency technology, even if the transmitter and receiver frequencies are disturbed, just one tap, the transmitter
Will automatically lock frequency and adjust the same, easy to use;

High-grade LCD display makes the working status of the receiver and transmitter clear at a glance;

Wireless conference launch system, powered by two AA batteries, can use longer time with high alkaline batteries (high power 8 hours,
Low power 12 hours). If you use a rechargeable battery, the use time will decrease.
In the same space, use up to 20 conference transmitters to use the same modulation simultaneously in the same frequency band:
One set: 1, 55, 121, 174
Second group: 4, 58, 130, 183
Three groups: 9, 63, 137, 190
Four groups: 16, 70, 142, 195
Five groups: 25, 79, 145, 198
Improper frequency setting can cause intermodulation interference.

Transmitter Specifications Transmitter specifications:
Wireless: Pendant transmitter with 1/4 wavelength whip antenna, handheld microphone built-in spiral antenna
Wireless pattern:
Output power: Output power: High power High power30mW; Low power Low power 3mW
Stray rejection: -60dB
Power Supply: Two AA Batteries 2 AA batteries
Working time Duration time: More than 8 hours at 30mW >8 hours(30mW), Greater than 12 hours at 3mW >12hours(3mW)