Product Description

Features:
GN 66m (ISO 100 / 200mm)
Flash Mode - M / Multi
Manual Flash - 1/128 - 1/1 output control (1/3rd increments)
20 - 200mm Manual Flash Zoom
Built-in Radio Master Modes - YN-560 / RF-603 (2.4GHz RF Systems).
Built-in Radio Slave Modes - YN-560 / RF-603, and RF-602 (2.4GHz RF Systems).
Supports 6 Flash Groups
Supports 16 Channels
Full Power Recycle - From 3 Seconds
S1 & S2 Optic Slave Modes
Custom Functions
Auto Save Settings
Sound Prompt
Heat Protection
Large LCD Screen
360 Degree Swivel and Tilt Head
Fast Clamping Metal Foot
External HV Battery Port
PC Sync Port

Functions:
Compatible transmitter / master flash units include:
YN560 IV, and YN660 flashes
YN560-TX
RF-605, RF-603 II
RF-602
With the YN560-TX tranmitter, and YN560 IV / YN660 flashes providing the most functionality, including Remote Manual Power and Flash Head Zoom Control.

Compatible slave flash / receiver units include:
YN560 IV, YN-560 III, and YN660 flashes RF-605, RF-603 II

Package Including:
1 x Speedlite
1 x Mini Stand
1 x Protecting Bag
1 x User Manual
1 xSmart&Cool Cleaning Cloth

Feature

【GN66】 GN66@ ISO100，199mm
【Master control】Supports wireless master control function,realize six groups of light control
【Off camera】 Supports wireless slave function, fully supports the YN660、YN560 IV、YN560-TX、RF605、RF603（II）、RF602 wireless transmitter
【Trigger】Multiple flexible trigger synchronous ways
【Custom】Supports automatically save settings and custom settings Fn The parameters on the flash will automatically save when the flash turned off; the users can customize setting the flash function as needed.
Brand : YONGNUO
MPN(PartNumber) : YN660
EAN : 0740030520511
Product Dimensions(LxWxH) : 22x11x9cm ; 726 g