[Product Information]

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 YN 660/YN 560 IV/YN 560III
YN660 Supports Wireless Slave Function， Fully Supports The YN 660/Yn560 IV/YN560-TX/RF 605/RF603/RF602 Wireless Transmitter One Yn660 Can Respectively Accept The Signal Transmitted From The YN660/YN 560 IV/YN560-TX / RF 605 / RF 603 (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 YN 560 III And YN 560 IV Flashes， And As A Slave (With Remote Adjustment) To The Yn560 IV / YN 660 And Yongnuo YN560 TX RF-603 II RF-605 RF-602. Crucially， You Are Able To Control Up To Six Groups Of Flashes.
YN560TX， Modify zoom for each group.Compatible with RF602 / RF603 / RF603 II. Transmission Range: 100 Meters
Remote Control of Flash output and Zoom per group， up to 6 groups， A/B/C/D/E/F