Functions: High GN: 32 Support TTL Support Manual Flash (S1/S2 mode) Support Stroboscopic mode Adjustable Tilt & Swivel Head LCD Lattice screen LED-Assistive preview focus Metal hot shoe Specification: Manual: 1/1-1/128(±1/3 increments) Repeating flash: 1-199HZ Exposure compensation: one-third-stop increments ±3 files Own master mode , can wireless control meike series slave flash Power Supply: 2 AA alkaline batteries or AA NI-MH battery Flash Index: 32 (105 mm focal length; ISO:100meters) Flash Mode: TTL/M/S1/S2/RPT/ remote control flashlight Up-Down Rotation Angle:-7°(Down)~90°(Up) Left-Right Rotation Angle:150° Batter Flashes: 100-1500 flashes (For AA alkaline batteries ) Recycle time: About 5s (For AA battery ) Color temperature: 5600K Light Sensing Distance: Indoor 15m, outdoor 10m Weight: About 150g (Flashlight only, batteries not included) Sie:110(L)65(W)36(H)mm Package Including: 1 x MK-320 1 x Diffuser for MK-320 1 x Flash Stand 1 x Manual