YN 460 TX 2.4G wireless TTL commander

The Yongnuo YN460TX & YN460RX Wireless TTL Lightning System is an amazing innovation which allows TTL controlled shooting for Canon and Nikon cameras and also to adjust the slave flash power from the main controller. Furthermore communication between controller and slave flashes is done by radio so shooting behind walls, which big softboxes or sunlight is not causing trouble any more. Yongnuo claims a maximum distance between camera and slave flash of 200m. Uses 2.4GHz frequency.