Model: SP-690C - Color: Black - Plastic housing material - 2.0" LCD display screen with LED backlit - Type: E-TTL II Auto flash speedlight - Voice: Beep - Overheating protection system - Color temperature: 5600K (white light) - Guide number: GN50 (ISO100 focus range 180mm) - Zoom range: 24~180mm - Flash duration: 1/800 ~ 1/20000s - Lighting times: 100 ~ 500 times - Vertical rotation angle: -7 degrees ~ 90 degrees - Horizontal rotation angle: 0 degree ~ 270 degrees - Flash control: 22 levels light quantity output control (manual) - Powered by 4 x AA batteries (Alkaline Ni-MH or Li-on)/not included - Recycle time: Approx 5s (Alkaline cell) Approx 2s (Ni-MH cell) - Power saving: Auto power off after 3 minutes in standby mode - Package includes: - 1 x Speedlight - 1 x Soft protective bag - 1 x Stand - 1 x English/Chinese manual