The Interfit Strobies Titan-Pro Transceiver is an ideal way to eliminate the tangle of PC cords in your studio or trigger your camera or flash at distances up to 320 (100 m). The Titan-Pro is a transceiver, meaning that it can serve as the transmitter or receiver to another Titan-Pro attached to a camera or flash at sync speeds up to 1/250 sec. on cameras which are able to sync at that speed. The unit has 4 channels to enable 4 separate triggering scenarios or to avoid interference caused by other radio devices. The integral hot shoe mounts quickly to a camera when using it as a transmitter & the built-in female hotshoe allows remote triggering of shoe-mount flashes when used as a receiver. Optional cords are available for cameras or for flash units without a shoe mounts such as studio strobes. The Titan-Pro runs on 2 AA batteries (not included) or an optional DC power supply.