Neewer N1C E-TTL 2.4 G 32 Channels Wireless Flash Trigger(1Transmitter+1Receiver) for Canon 5D Mark II/III,70D 60D 550D DSLR Camera,Studio Flash and Flash Speedlite With 2.4G wireless transmission and 100m workable distance, N1T-C can function as a remote studio trigger, a camera flash trigger and a camera shutter release. Support for functions included E-TTL autoflash, manual flash, high-speed sync, flash exposure compensation, flash exposure lock, manual focus,modeling flash etc. Wireless grouping system and 32 channels to have multiple flashes under control simultaneously. Wireless grouping system and 32 channels to have multiple flashes under control simultaneously. Comes with 1 * Transmitter+1 * Receiver. Note:Camera and battery are not included.