The PocketWizard PlusX Transceiver is the simplest PocketWizard radio ever and the perfect entry into the PocketWizard Wireless System. Whether you are new to off-camera flash or an experienced pro looking to expand upon an existing PocketWizard system the PlusX is the perfect choice. Simply attach one PlusX to your camera, another PlusX to a remote flash using an included cable, set both radios to the same channel and start taking pictures. The PlusX is compatible with all Standard Channel-capable PocketWizard transmitters and receivers, so it's the perfect companion for your existing radios and new flashes. This kit contains two PlusX Transceivers.