Yongnuo Speedlite Transmitter YN E3 RT II

2.4G two-way radio communication, fully compatible with Canon 600EX-RT Speedlite flash and ST-E3-RT transmitter: 2.4G two-way radio communication, fully compatible with ST-E3-RT / 600EX-RT / YN-E3-RT / YN968EX-RT/YN600EX-RT(II)/YN686E. X-RT/YNE3-RX Compatible Canon Cameras: 70D, 60D, 50D, 40D, 30D, 100D, 80D, 5DIV, 6DII, 5DII, 5D, 6D, 7D, 7DII, 1D, Rebel T5i, Rebel T4i, Rebel T3i, Rebel T2i, T1i, Rebel XSi, Xti, Rebel XT, Rebel XS, EOS R. Canon Speedlite: 66 Canon 00EX(II)-RT 430EX III-RT; YONGNUO speedlite: YN600EX-RT(II), YN968EX-RT, YN686EX-RT YN680EX-RT 4 flash modes, 5 groups ETTL, M, Multi and GR flash modes. Up to 5 groups (A/B/C/D/E) and 15 pieces Support first tent, second tent (only in M mode), high speed sync. Multi YN-E3-RT II can share 15 physical channel slave flashes, 1c automatic, up to 10,000 customizable photographer identitors. Transmission range: 100m Multi YN-E3-RT II can share flash slaves, view group status/loading slave flashes. Remote shutter release, connected shutter release New selected dial design and display interface for easier operation. Support remote control to adjust the focal length (ZOOM) of the slave flash (only compatible with YONGNUO compatible flash). Firmware can be upgraded via USB (Micro-USB).