Feature: 1. This speedlite equipped with universal hot shoe contact, is compatible with Canon and other brands DSLR cameras. 2. 4 flash modes: M(Manual), Multi, S1 and S2, meet all your shooting needs. 3. With 3.5mm sync input port, the flash will work synchronously when the sync port is connected. 4. Power saving function, under M \u0026 Multi modes, the flash till enter stand-by state in about 30 minutes if idle use. 5. Over-temperature conservation function will be activated if you continue to flash too many times. You can use it normally after cool down. 6. This speedlite equipped with universal hot shoe contact, is compatible with most of DSLR cameras. Specification: Features: This speedlite equipped with universal hot shoe contact, is compatible with Canon and other brands DSLR cameras. 4 flash modes: M(Manual), Multi, S1 and S2, meet all your shooting needs. With 3.5mm sync input port, the flash will work synchronously when the sync port is connected. Power saving function, under M & Multi modes, the flash till enter stand-by state in about 30 minutes if idle use. Over-temperature conservation function will be activated if you continue to flash too many times. You can use it normally after cool down. Specifications: Circuit Design: Automatic Insulated Gate Bipolar Transistor (IGBT) Guide No.: 33 (ISO 100, 35mm) Flash Light Coverage Range: Fixed-focus, flash speed rotating(bounce flash) Flash Mode: M, S1, S2, Multi Wireless Trigger: S1/S2 photo tonus Wireless Flash Distance: 20-30M Bounch Position: up/down 0/90°, left/right 0/270° Color Temperature: 5500k Flash Duration: 1/200s~1/20000s Flash Control: 1/128~1/1, 22 levels of fine tuning External Interface: hot shoe, 3.5mm sync socket, external C power socket Recycle Time: 0.1-5S(using AA alkaline battery) Power Supply: 4 * AA batteries (not included) Lighting Times: 100~1500 times(using AA alkaline battery) Item Weight(without battery): 316g/ Package Size: 20.5 * 9 * 7cm/ 8.1 * 3.5 * 2.8in Package Weight: 400g/ 14.1oz Note: Batteries are not included. The camera showed in the picture is not included. Package List: 1 * Speedlite 1 * Carry bag 1 * Mini stand 1 * User manual(English&Chinese) Package List: 1 * Speedlite 1 * Carry bag 1 * Mini stand 1 * User manual(English&Chinese)