Neewer MK900 i-TTL LCD Display Speedlite Master/Slave Flash for Nikon D3S D50 D60 D70 D70S D80 D80S D200 D300 D300S D700 D3000 D3100 D5000 D5100 D7000 and All Other Nikon DSLR Cameras

Specifications:
Circuit Design: Insulated gate bipolar transistor (IGBT)
Guide Number: 58 (ISO 100, 180mm)
Flash Coverrage: 18-180mm
Manual, Auto Zoom
Swinging/Tilting flash head(bounce flash)
Flash Mode: TTL/M/RPT/MASTER/SLAVE/S1/S2
Light rotation: 0- 360 degree horizontally and -7- 90 degree vertically
The wirelss trigger: Wireless induction flash lighting
Wireless triggering distance: 12-15m / 39.4-49.2 feet indoor, 8-10m / 26.2-32.8 feet outdoor
Channels: 4
Controllable slave groups: 3 (A, B and C)
Lighting Times: 100-1500 times (AA Alkaline cell used)
Recycle time: Approx.3s
Color temperature: 5600K
Flash duration: Normal flash: 1.2ms or shoter; Quick flash: 2.3ms or shoter
Peripheral interface: Hot shoe, PC mount, External charge mount
Power Supply: 4pcs AA alkaline cell or AA Ni-MH battery(not included)
Extenal power: Compact battery pack MK-SD8A(not included)

Note: Camera not included.

Package Contents:
1x MK900 Flash
1x Mini Stand
1x Protective Bag
1x Maunal