The World’s First Auto-Sensing Smart Transceiver! Auto-Sensing Transceiver Technology: Automatically Transmits or Receives radio signals. Auto-Relay Mode:
Wirelessly trigger a remote camera and flash simultaneously.
Fast Triggering Speed: Trigger cameras and/or flash units up to 12 fps
4-Channel Digital Radio Triggering System Transceiver.

Features Local/Remote/Both selector switch, hot-shoe triggering and 1/4"-20 mounting thread. Compatible with the first four channels of all PocketWizards. (Includes PC-1 camera sync cable and two “AA” Alkaline batteries. May require cables.)