Product Features
YN 660
*High guide number 2.4G wireless speedlite, supports M/Multi/ mode. Support wireless master control function, realize six groups of light control.
*Supports wireless slave function, fully supports YN660, YN560 IV, YN560-TX, RF605, RF603 (II) and RF602 wireless transmitter.
*Support automatically saves settings and custom settings Fn. With special sound prompt system and supports electric zooming function.
*Ultra-fast charging recycle system, supporting external power supply.

Product Specifications:

Curcuit design?? Insulated Gate Bipolar Transistor ( IGBT )
Guide NO?? 66 ( ISO 100, 199MM )
Flash Mode ??M / Multi
Trigger Mode ??Camera Set-top, TX, RX S1 S2
Zoom Range ??20 24 28 35 50 70 80 105 135 199mm
Power supply ??4*AA size batteries
Recycle time?? Approx 3s
Color Temperature ??5600k
Wireless Trigger distance ??20-25m indoor, 10-15m outdoor 2.4Gradio transmission distance will up to 100m

Package includes :
1 * YN660 Flash
1* Protecting Bags

• YN660 Supports wireless master control function,realize six groups of light control .YN660 can be used as master control unit,be equipped with six groups of independent grouping control ability, realize remote control the flash mode,output and focal length of YN660??YN560 IV??YN560III.
• YN660 Supports wireless slave function, fully supports the YN660??YN560 IV??YN560-TX??RF605??RF603?¡§II????RF602 wireless transmitter One YN660 can respectively accept the signal transmitted from the YN660??YN560 IV??YN560-TX??RF605??RF603 (II)??RF602 wireless transmitter, with 16 channels for option; when the YN660??YN560 IV and YN560-TX used as transmitter, it can realize remote flash parameter adjustment.
• YN660 supports Yongnuo??s full 2.4GHz manual flash control system. YN660 can act as a wireless master flash for the previous-generation Yongnuo YN560 III and YN560 IV flashes, and as a slave (with remote adjustment) to the YN560-IV YN660 and Yongnuo YN560-TX RF-603 II RF-605 RF-602. Crucially, you are able to control up to six groups of flashes.
• Multiple flexible trigger synchronous ways,YN660 can be triggered through the camera,2.4G wireless triggering,S1 and S2 pre flash trigger avoidance
• 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.

YN660 Supports wireless master control function,realize six groups of light control .YN660 can be used as master control unit,be equipped with six groups of independent grouping control ability, realize remote control the flash mode,output and focal length of YN660??YN560 IV??YN560III.Carbose Industrial limited