YONGNUO YN650EX-RF 2,4G Wireless TTL LED 2W Flash Light Speedlite per Canon 650D
This product has built-in YONGNUO 2.4G radio RF system with transceiver and wide compatibility.And there are 16 channels for choice. It can easily realize wireless TTL,manual flash, stroboscopic flash and Gr multi-grouping mixed mode flash.