High performance high compatibility high power output; Wireless touch induction; Modes: TTL Manual Flash; Wireless slave function the flash can be used to access the camera menu (Canon newer models); High-speed sync up to 1/8000 seconds; Rear-curtain sync with voice prompts power saving mode overheating protection function; With external power socket; Quick power back completely output power back 2.9 seconds; Supports high-speed continuous shooting at 1/16 or less brightness support 12 pieces / sec high-speed continuous shooting flash; - Line Design: Automatic Insulated Gate Bipolar Transistor (IGBT); - Flash index: 56 (ISO 100180 mm); - Flash modes: Auto mode TTL manual mode M FEB (Flash Exposure Bracketing) slave mode lead flashing light mode S1 S2 strobe mode Multi; - Wireless Trigger: Flash light sensor; - Slave unit group: Four communication channels (3 4) and the slave units 3 groups (A B C); - Down angle: -7~90 degree; Left-right angles: 0~180 degree - Color temperature: 5500K; - Flash time: 1/200~1/20000s; - Flash control: 1/128~1/1 0.3EV in total 22-level dimming modes; - External interface: Hot shoe PC interface external charging port; - Recycle time: 2.9 seconds; - Down rotate angles: 0~90 degree Left-right rotate angles: 0~360 degree; - Wireless trigger distance: 10~30m; - Suitable for Nikon D3s D3x D3 D700 D300s D300D200D100 D90 D80 D70s D7000D5100 D5000 D3100D3000 D60 D40X D800 D600 etc.