The PocketWizard Plus II transceiver is an "Auto-Sensing" transceiver which automatically switches from receive to transmit as needed and reliably triggers lights and/or cameras up to 1600 feet away. Utilizing advanced digital technology, four, 16-bit channels are available for selective firing of lights or remote cameras*. Images can be captured at up to 12 frames-per-second, faster than any current DSLR. Ultra-fast microprocessors allow for top sync speeds of 1/250th-second for focal-plane shutters and 1/500th for leaf shutters. The PocketWizard Plus II Transceiver offers great flexibility and ease-of-use for photographers who demand a reliable wireless solution to plug-in, turn-on and shoot.