Pocket Wizard Plus Iii Transceiver The PocketWizard Plus III Transceiver is the most reliable, feature-packed, easy-to-use solution for remote flash and camera triggering available. The Plus III Transceiver features an impressive 32 channels. Whether you're a wedding or sports shooter or working in a busy studio, finding a clear channel is never a problem. Selective Quad-Zone Triggering, a feature once reserved for elite photographers, adds four zones enabling photographers to remotely trigger flash and or cameras in groups or individually. For photographers being asked to do more for less, this added flexibility is a huge competitive advantage. The Plus III is simple to operate. The soft-touch keypad is large and intuitive and a beautifully backlit LCD panel displays everything you need to know. All of this is presented in a sleek, side-view design which reduces the viewing obstruction while conveniently positioning all controls. The precision-tuned antenna is housed inside the case of the radio for better durability. The Plus III adds to the legendary Plus reliability with a working range that will meet photographer's everyday needs. For more challenging environments or distances, there are two added features to improve range and reliability. Long Range Mode (LR) will roughly double the working range and is ideal for remote camera triggering. Repeater Mode (RP) allows the addition of one or more radios in between the transmitting and receiving radios to overcome distance, obstacles or other interference. RP mode works well for both remote camera triggering and remote flash triggering.