The single band 470-700 MHz RF Multi SR 4 Pack with Aaton Hydra PCB & Hirose Power Output from PSC is a wireless audio RF and power distribution system that supports two slot receivers and incorporates a PCB and Hirose power output connectors. The RF Multi SR 4 Pack features two separate, active 1 x 3 RF splitters for use with up to two slot style receivers. The installed Aaton Hydra PCB will allow various-brand receivers to communicate with the Aaton Cantar and Cantar Mini recorders over a USB cable. This direct communication between the recorder and the RF receivers enables you to perform frequency scans and view receiver RF signal strength, receiver audio levels, transmitter battery level, and more.