?3 groups and 7 channels flash trigger£¬ combining transmitter with receiver into one system£¬ easy and convenient to use. <br> <br> <strong>Features:</strong> <br> Compatible flash mode: E-TTL (II)/ Manual/ Multi. <br> Support to mix using E-TTL / Manual/ Multi flash mode(Mix Control Mode). <br> Compatible shutter sync: 1st curtain£¬ 2nd curtain£¬ high speed sync (HSS/FP)£¬ max. sync speed is up? 1/8000s. <br> Remotely set flash parameters using camera's control menu(Remote Control Mode). <br> Flash on hot-shoe of transmitter supports ETTL. <br> Support FEC / FEB / FEL. <br> Support modeling Flash. <br> Support E-TTL group ratio (ALL/ A:B/ A:B C). <br> Support Manual/Multi group (ALL/ A:B/ A:B:C). <br> Support flash zooming (auto£¬ manual). <br> Support AF assist beam emitter(AF Lamp). <br> Support PC port triggering strobe and support 1st£¬ 2nd curtain/HSS(Super Sync). <br> Support LCD Live view triggering. <br> Support high-speed continuous shooting trigger. <br> Settings saved automatically. <br> Compatible with ALL DF/ Canon EXII series flashes. <br> Support single-contact of camera &amp; flash triggering.(max sync speed is 1/250s) <br> <br> Compatible with: <br> For Canon 5D Mark II£¬ 5D Mark III£¬ 1Ds Mark III£¬ 1D Mark IV£¬ 1D Mark III£¬ 7D£¬ 60D£¬ 50D£¬ 40D£¬ 450D£¬ 550D£¬ 500D£¬ 600D£¬ 650D£¬ 1000D£¬ 1100D. (The EOS DSLR camera with external flash control menu) <br> For Canon 5D£¬ 10D£¬ 20D£¬ 30D£¬ 300D£¬ 350D£¬ 1D£¬ 1D Mark II. (The EOS DSLR Camera without external flash control menu) <br> For Canon 600EX(RT)£¬ 580EXII£¬ 430EXII£¬ 320EX£¬ 270EXII (Support wireless remote control through camera menu) <br> <br> <strong>Note:</strong> <br> 430EX£¬ 550EX and 580EX or other parts of flash is not supported remote control via the camera menu£¬ you need to manually set the flash parameters. <br> Battery is not included. <br> <br> <strong>Specifications:</strong> <br> System type: Digital 2.4GHz ISM wireless transceiver <br> Distance: 100m <br> Channel: 7 <br> Flash mode: E-TTL(II)£¬ manual flash£¬ multi flash <br> Sync mode: 1st curtain£¬ 2nd curtain£¬ hi-speed sync <br> Groups: 3 groups(A/B/C) <br> Sync speed: 1/8000s(Max.) <br> Input: Hotshoe(TTL£¬ main contact) <br> Output: Hotshoe£¬ PC port <br> Applicable battery: 2 * AA battery(Support 1.2V rechargeable battery) (Batteries not included) <br> Item Size: 9 * 5.5 * 2.5cm / 3.5 * 2.2 * 1.0in <br> Item Weight: 68g / 2.4oz <br> Package size: 21 * 12 * 4.3cm / 8.3 * 4.7 * 1.7in <br> Package weight: 168g / 5.9oz <br> <br> <strong>Package List:</strong> <br> 1 * Transceiver <br> 1 * Mini Plate <br> 1 * Sync Cable <br> 1 * Adapter(3.5mm to 6.35mm) <br> 1 * User Manual(English &amp; Chinese)