Optical and radio transmission integrated・ use the Master and Slave units at will------YONGNUO Professional Creative Speedlite YN600EX-RT II. It is directly compatible for Canon&#39;s RT built-in TTL radio flash system・ and also compatible for Canon 600EX-RT flash.<br /><br />Features:<br />--Realize wireless optical and radio flash control function<br />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.<br />--Compatible for Canon wireless radio RT system<br />In wireless radio transmission flash shooting・ cooperate with the YN600EX-RT (II)、Can0n 600EX II-RT/ 430EXIII・ one YN600EX-RT II can used as set-top master unit or remote slave unit・ totally 15 channels for option・ realize TTL・ manual flash and stroboscopic flash.<br />--Supports for Canon optical transmission wireless master flash<br />In the optical transmission flash shooting・ the YN600EX-RT II can be used as master unit to trigger the YONGNUO and Can0n EX series flash (excluding the YN585EX)・ supports 4 channels・ realize wireless TTL・ manual flash and stroboscopic flash. <br />--Supports for Canon and for Nikon optical transmission wireless slave flash<br />One YN600EX-RT II can respectively receive the wireless signal of master unit YN600EX-RT II、YN568EX II、600EX(II)-RT、580EX II、SB-910/ 900/ 800/ 700・ for Nikon built-in flash C command and for Canon 7D/60D/600D cameras built-in flash wireless signal・ realize wireless TTL・ manual flash and stroboscopic flash.<br />--GN60 @ISO100・ 200mm<br />YN600EX-RT II as professional creative high guide number speedlite・ supports TTL、 M、 Multi flash.<br />--Supports high-speed sync<br />The YN600EX-RT II can realize TTL・ manual flash・ the highest shutter synchronous speed is up to 1/8000s.<br />--Ultrafast charging recycle system・ supports external power supply<br />It just takes 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.<br />--Support firmware upgrade<br />The YN600EX-RT II equipped with USB interface・ supporting firmware upgrade・ you can download the upgrade firmware through the Yongnuo official website to upgrade the flash.<br />--Support auto and manual zooming<br />Support auto and manual zooming・ the flash coverage can be changed between AUTO・ 20~200mm.<br />--Multiple trigger mode supported<br />The YN600EX-RT II can be triggered by the camera set-top・ PC synchronous trigger・ wireless optical/ radio remote trigger.<br />--Settings save automatically・ support custom settings (Fn)<br />--Equipped with big size LCD display screen・ standard PC synchronous interface<br /><br />Driver &amp; Software: //yongnuo.com.cn/app/YNFlash-Updater-Install_V1.30.zip<br />Firmware: //yongnuo.com.cn/app/yn600ii_offical_fm_V1.13.zip<br /><br />Specifications:<br />Brand: YONGNUO<br />Model: YN600EX EX-RT II<br />Circuit Design: Insulated Gate Bipolar Transistor (IGBT)<br />Guide No.: 60 (ISO 100・ 200mm)<br />Flash Mode: TTL・ M・ Multi・GR<br />Trigger Mode: Set-up・ wireless master mode・ wireless slave mode・ wireless optical master・ wireless optical slave (Sc・ Sn・ S1・ S2)<br />Zoom Range: 20・ 24・ 28・ 35・ 50・ 70・ 80・ 105・135・ 200mm<br />Vertical Rotation Angle: -7~90 degrees<br />Horizontal Rotation Angle: 180 degrees each side<br />Power Supply: 4* AA size batteries (not included)<br />Lighting Times: 100~1500 times (AA alkaline cell used)<br />Recycle Time: Approx. 3s (AA alkaline cell used)<br />Color Temperature: 5600k<br />Flash Time: 1/200s~1/20000s<br />Flash Control: 8 levels of output control (1/128~1/1)・ 22 levels of fine tuning<br />External Interface: hot shoe・ PC port・ USB port<br />Wireless Triggering Distance: Up to 100m<br />Optical Transmission Triggering Distance: 20~25m indoor・ 10~15m outdoor<br />Additional Features: Master flash・ off-camera flash・ high-speed sync・ second-curtain sync・ FEC・ FEB・ FEV・ the electronic flash head zooming・ sound prompt・ automatically saving setting・ PC port・ power saving mode・ over heat protection・ custom function・ firmware update<br />Item Size: 6.2 * 7.8 * 20.5cm / 2.4 * 3.1 * 8.1in<br />Item Weight: 426g / 15oz<br />Package Size: 22 * 10 * 9.4cm / 8.7 * 3.9 * 3.7in<br />Package Weight: 638g / 22.5oz<br /><br />Package List:<br />1 * Speedlite<br />1 * Mini Stand<br />1 * Protecting Bag<br />1 * User Manual (English &amp; Chinese)<br /><br />Note:<br />Batteries are not included.<br><img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-3175.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-zUZx.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-bc1Q.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-bsan.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-NFUq.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-K6C2.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-xgRx.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-I5lh.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-9tNl.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-AxW9.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-5y5I.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-vSus.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-bsDu.jpg" /><br>$$<img src="//agdetail.image-gmkt.com/m430/899/105/827105899/img/agdetail.image-gmkt.com/899/105/827105899/img/img.tomtop.com/product/xy/2000/2000/p/gu1/D/6/D4616/D4616-1-5905-5R6p.jpg" /><br>