Neewer&reg; NW982C-II *High Speed Sync* E-TTL Camera Master/Slave Flash Kit for Canon EOS 5D Mark III , 5D Mark II, 1Ds Mark 6D, 5D, 7D, 60D, 50D, 40D, 30D, 300D, 100D, 350D, 400D, 450D, 500D, 550D, 600D, 650D, 700D, 1000D, 1100D/EOS Digital Rebel, SL1, XT, Xti, Xsi, T1i, T2i, T3i, T4i, T5i, XS, T3 and Other Canon DSLR Cameras, includes: (2)NW982C-II Flash+ (1)2.4GHz Wireless Trigger (1 Transmitter, 2 Receivers) + (2)Cables (C1/C3) + (2)Soft Flash Diffuser + (2) Lens Cap Holder Powerful Flash with High Guide No.58(ISO 100, 180mm). High-speed sync up to 1/8000th of a second. Ultra-fast 2.9 second full-discharge recycle time. Flash Mode: TTL, M, Multi, FEB, Master, Slave, S1, S2 The remote trigger for studio flashes and outdoor flash is used as the controller of synchronous trigger studio flash of cameras. It consists of a signal sender and a receiver trigger and works by means of the frequency modulation wireless remote control. Soft Flash Diffuser:spreads and softens the light emitted from your flash unit,bouncing off ceilings and walls. Kit includes: (2)NW982C-II E-TTL Flash for Canon + (1)2.4GHz Wireless Trigger (1 Transmitter, 2 Receivers) + (2)Cables (C1-Cord + C3-Cord) + (2) Soft Flash Diffuser + (2) Lens Cap Holder