YONGNUO YN600EX-RT SPEEDLITE feature:
Supports RT System
Fully Compatible with YONGNUO YN-E3-RT,Canon's 600EX-RT/ST-E3-RT Wireless Signal
High Guide Number, Supports High-speed Sync
Supports USB Firmware Upgrade
Supports Wireless Optical Slave function
Support Auto/Manual Zooming
Settings Save Automatically, Supports Custom Settings (Fn)
Ultra fast Charging Recycle System, Supports External Power Supply
Equipped with Big Size LCD Display Screen, Standard PC Synchronous Interface

YONGNUO YN-E3-RT Transmitter feature
Two-way 2.4G radio communication, compatible with ST-3E-RT/600EX-RT
Transmission Range: 100M
Multi YN-E3-RT can share slave flashes
Display group/charge status of slave flashes
High resolution Dot-Matrix LCD, Backlight for LCD/keys
Fast lock mechanism
Built-in AF assist beam emitter, buzzer
Remote shutter release, Linked Shot (Need extra shutter cable for cameras released before 2012)
Flash Mode: ETTL/M/Multi/GR 4 flash modes
A/B/C/D/E 5 groups
Supports 1st Curtain, 2nd Curtain (Only in M mode), High speed Sync
Supports ETTL Ratio, Flash Exposure Compensation, Flash Exposure Lock, Flash Exposure
Bracket, Modeling Flash
9 Custom Functions

Package Including:
2 * YN600EX-RT
1*YN-E3-RT
2*b type flash bracket
2*flash diffuser
20*color gels
1*inseesi clean cloth
Note:battery not include

• 1.YONGNUO YN600EX-RT 2PCS Radio HSS 1/8000S Speedlite +YNE3-RT Radio Transmitter,come with two B type flash swivel bracket to mount on the flash ,two flash diffusers to soften light,20 color to adjust light effect,and one Inseesi clean cloth.
• 2.YONGNUO YN600exrt speedliet and YNe3-rt transmitter can work as Canon's 600EX-RT/ST-E3-RT Wireless Signal,YN600EX-RT Speedlite can be used as on-camera master unit,YNE3-RT can control yn600ex-rt speedlite in wireless.
• 3.These Speedlite kit fully support ETTL and HSS function,high sync speedlite up to 1/8000s.and both of them support USB interface, supports firmware upgrade,.
• 4.YONGNUO yn600exrt Festured GN60@ISO100 to 200mm;supports high-speed sync TTL, manual flash, Gr grouping flash,built with large LCD screen in high definition.supports S1 and S2  flash mode.
• 5.YONGNUO YN-E3-RT flash transmitter support Two-way 2.4G radio communication,its Transmission Range: up to 100 meters,support Flash Mode: ETTL/M/Multi/GR.

1.YONGNUO YN600EX-RT 2PCS Radio HSS 1/8000S Speedlite +YNE3-RT Radio Transmitter,come with two B type flash swivel bracket to mount on the flash ,two flash diffusers to soften light,20 color to adjust light effect,and one Inseesi clean cloth.YONGNUO