Parallel IrDA 100ch UHF beltpack transmitter with LCD display and battery indicator 650MHz

Beltpack Transmitter Features Multi-function LCD display for channel/frequency, sensitivity, battery status indicator, Alkaline/NiMH battery selection. Patented IrDA technology for 2-way data transfer between transmitterand receiver. 100 frequencies agile in 25 MHz bandwidth. ±40 KHz peak deviation.