Compatible with : 
1), Hot shoe TTL mode: Canon 1Dx, 1Ds series, 1D series, 5DIV 5DIII, 5DII, 5D, 7D, 7DII, 80D, 70D, 60D, 50D, 40D, 30D, 20D,750D,700D, 650D/T4i, 600D/T3i, 550D/T2i, 500D/T1i, 450D/Xsi, 400D/Xti, 350D, 100D, 1100D, 1000D, 1200D 
2), Wirelss TTL Slave mode: Canon 5DIII 7D 60D 700D 650D 600D, Yongnuo ST-E2, Canon 580EX II 
3), Master Mode, It can trigger these flash:YONGNUO: YN600EX-RT YN685C YN568EX II, YN568EX, YN565EX, YN500EX, YN560EX, YN510EX Canon: 600EX-RT, 580EX II, 580EX, 430EX II 

Functions:
1,Realize wireless optical and radio flash control function. In optical transmission and wireless radio transmission flash shooting, the YN600EX-RT II can used as master unit to control the flash mode, exposure compensation, flash ratio, number of stroboscopic and stroboscopic frequency. 
2, Ultrafast Charging Recycle System, Supports External Power Supply. It just take 2 seconds at full output. Even if not use the brand new batteries, it just takes 3~4 seconds ultra-fast time to recycle; Besides, you can also use the external power supply to meet your higher requirement.
3,Supports Firmware Upgrade. The YN600EX-RT II equipped with USB interface, supports firmware upgrade, you can download the upgrade firmware through the Yongnuo official website to upgrade the flash.
4, Support Auto/Manual Zooming. Supports auto and manual zooming, the flash coverage can be changed between AUTO, 20~200mm.
5, Multiple Trigger Mode Supported.The YN600EX-RT II can be triggered by the camera set-top, PC synchronous trigger, wireless optical/radio remote trigger. 
6, Settings Save Automatically, Supports Custom Settings (Fn)

Package Including:
1 x Flash speedlite YN600EX-RT II
1 x Mini Stand
1 x Manual in English and Chinese
1 x Original box