The premium-quality Flash Wave III Radio Slave Kit is essential for the pro photographer on-the-go. It is versatile and reliable to be used for portable flash units, as well as a strobe unit. The transmitter is powered by 1- CR2450 Lithium Battery, sends 2.4 GHz sign to trigger slaved Flash Wave III RX receiver. It features 16 selectable and encrypted channels, ranges up to 700 feet, far enough for most of the applications. The transmitter can be mounted directly on to a standard hot shoe or via a PC Sync cable (included). The receiver can be mounted directly on to mounted directly on to a tripod or light stand. Package include: 1- Flash Wave III RX Receiver, 1- Strobe Sync Cable, 2- AA Battery