For system compatibility, the component's frequency MUST match your existing system/component frequency.
Unique VHF receiver allows use of two Pro Series mics simultaneously. Each transmitter can be from 10 to more than 250 feet from the receiver. Captures the voices of two people simultaniously, with each recorded on a seperate channel. Operates on a 9 volt battery and (with optional adapters) on 12 volt DC or 120 volt AC. This is the "S" Pro Series and offers two additional channels (171.105 and 171.845 MHz)