Yongnuo YNE3-RX is the world first E-TTL wireless flash receiver for Canon's new RT flash system. 
It makes E-TTL flashes compatible with RT master flashes like Canon 600EX-RT / Yongnuo YN600EX-RT, and commanders as ST-E3-RT and YN-E3-RT.

Support Features

*Flash Mode: E-TTL, M, MULTI, High Speed Sync (HSS)
*Remote Shutter Release Function, Test Flash
*PC Output Interface
*USB Firmware Upgrade
*Single Contact Triggering
*Single Contact Flash Triggering
*LCD Display

Specification
*Distance:  100m
*Groups:    5 groups (A/B/C/D/E)
*Wireless ID:    0000-9999
*Compatible Battery:    AA x 2 ( Supports 1.2V rechargeable batteries )
*Channel:  AUTO, Ch.1-15
*Frequency:    2405-2475MHz
*USB firmware upgrade:    Support
*Working time:   24 hours

Compatible Units
1: The compatible transmitter (Master unit)
Yongnuo YN-E3-RT, YN600EX-RT
Canon ST-E3-RT, 600EX-RT

2, Parts of the compatible E-TTL flash list:
Canon 600EX( RT), 580EXII. 430EX II
Yongnuo YN568EX II (C), YN565EX (C), YN468 II (C), YN467 II (C), YN465 (C)

Package Include
-1 x Yongnuo YNE3-RX E-TTL Wireless Flash Receiver
-1 x 6.35mm PC Cable with 3.5mm adapter
-1 x Manual in English and Chinese
-1 x Warranty card

*Does Not Include Camera, Flash & Batteries*