How much does this cost to the nearest dollar?

PocketWizard Transceiver For Canon TTL Flashes and Digital SLR Cameras
The Transceiver maximizes both E-TTL II and Manual Power Control capability of Canon photographic equipment. Use the Transceiver to control single or multiple off-camera electronic or intelligent TTL flashes. You can now place TTL or manual flashes anywhere to illuminate the scene Around corners, out-of-sight and in bright sunlight. Used as a transmitter, the can provide TTL auto flash at distances of up to 800 feet* and conventional triggering up to 1200 feet* with the aid of a flip-up antenna. The unit feature a two-position channel selector that is factory programmed to the PocketWizard classic channel one and two. Using the included software and USB port, you can program either channel to any of the PocketWizard system’s 

Price is $186.00

Price: $186