Canon ST-E3-RT Transmitter

ST-E3-RT Transmitter

Boxed with pouc, Instuctions 

Canon ST-E3-RT Speedlite Transmitter
A radio-frequency flash trigger aimed at professional photographers using off-camera flash
Fire compatible Speedlite flashguns over distances of up to 30m.
Radio-frequency control provides reliable operation even when direct line of sight is not possible.

Key Features:

Radio frequency remote flash trigger 
Weather sealed against dust and moisture 
Remote camera triggering 
Controls up to 15 flashguns 
Part of the E-TTL II flash system 
Fire selected Speedlites from 30m away 

Compatibility 
EOS 6D, EOS 700D, EOS 70D, EOS 60Da, 
EOS 750D, EOS M3, EOS 80D, EOS 7D Mark II, 
EOS 100D, EOS 1200D, PowerShot G1 X Mark III.