YONGNUO YN660 Flash Speedlite GN66 2.4G Wireless Radio Master Slave for Canon Nikon

 YONGNUO YN660 is the upgraded version of YN560-IV, high guide number of GN66.  Supports wireless master control function, realize six groups of light control. And supports wireless slave function, accept the signal transmitted fromYN660,YN560IV,YN560-TX,RF605,RF605,RF603(II) and RF602, when the YN660,YN560IV and YN560-TX used as transmitter, it can realize remote flash parameter adjustment.

Features:
Support 2.4G wireless transmission, controllable distance up to 100m.
High guide number of GN66, ultra fast recycle time up to 3s.
Multi trigger mode: on-camera/TX/RX/S1/S2.
A master control unit: realize remote control the flash mode, output and focal length of YN660,YN560IV or YN560III.
A slave control unit: accept the signal transmitted from YN660,YN560IV,YN560-TX,RF605,RF605,RF603(II) and RF602, when the YN660,YN560IV and YN560-TX used as transmitter, it can realize remote flash parameter adjustment.
Supports 16 channels and 6 groups.
Support electric zooming function, sound prompt, automatically saving setting, power saving mode, over-heat protection.

Specifications:
Curcuit Design: IGBT
Guide No.: 66(ISO 100, 199)
Flash Mode: M/Multi
Trigger Mode: Camera set-top/TX/RX/S1/S2
Zoom Range: 20mm/24mm/28mm/35mm/50mm/70mm/80mm/105mm/135mm/199mm(199mm is equivalent to 200mm focal length)
Vertical Rotation Angle: -7-90 degrees
Horizontal Rotation Angle: 0-270 degrees
Power Supply: 4 * AA(Not included.)
Lighting Times: 100-1500 times
Recycle Time: Approx.3s
Color Temperature: 5600K
Flash Control: 8 levels of output control(1/128-1/1), 29 levels of fine tuning
External Interface: Hot shoe, PC port, External charging port
Wireless Triggering Distance: Optical--20-25m(indoors)/10-15m(outdoors)
                                                       2.4G--100m
Additional Features: electric zooming function, sound prompt, automatically saving setting, power saving mode, over-heat protection, advanced options setting
Item Size: 21 * 6.5 * 5cm / 8.3 * 2.6 * 2.0in
Item Weight: 427g / 15.2oz
Package Size: 22 * 10 * 9cm / 8.7 * 3.9 * 3.5in
Package Weight: 613g / 21.6oz

Note:
The batteries are not included.

Package List:
1 * Speedlite
1 * Carrying Pouch
1 * Mini Plate
1 * User Manual(English)