Model: MK950 - 2.0" LCD Display - Guide Number: 53m (ISO 100 / 105mm) - Vertical Rotation Angle: 0~90 degree - Horizontal Rotation Angle: 0~270 degree - Power Supply: 4 x AA Alkaline or Ni-MH batteries (not included) - Lighting Times: 100~1500times (use Alkaline batteries) - Recycle Time: approx 3s (use Alkaline batteries) - Color Temperature: 5600K - Flash Time: 1/500~1/20000s - Flash Control: 8 levels of brightness output control (1/128~1/1) - Wireless Triggering Distance: 20~30m indoor 10~12m outdoor - Package Includes: - 1 x Speedlite flash light - 1 x Back clip - 1 x Carrying pouch - 1 x Chinese / English user manual