It includes both a hot-shoe mounted transmitter with a PC sync port and a receiver with a 1/4″-20 female mounting thread, a female hot shoe, and a proprietary output port. They function with a FSK 2.4 GHz frequency on one of 16 channels and have a far-reaching range of 328′. It can also sync at speeds up to 1/250 second and has dual-function shutter release with half-press and full-press capabilities. Included with the set is a shutter release cable that allows you to connect the receiver to a compatible camera for remote triggering. Also, it comes with a cable with a 6.35mm connector as well as a 3.5mm adapter for operation with a variety of strobes and studio lighting equipment. A CR2 lithium battery and 2 AAA batteries are also packaged with the set.