Number 1680.Chastotnaya frequency bandwidth, 42 MHz, 20 banks of fixed frequency scan to find available channels. Wireless transmitter synchronization via infrared port.Prostoe menu control via a graphic display with backlight (transmitter and receiver) noise reduction system. Sensitivity adjustment, 4-step battery status display on the receiver and peredatchike.Funktsiya Auto-Lock prevents accidental changing of settings. Adjusting the equalizer. soundcheck mode