Product Review

Speedlite Transmitter YN-E3-RT II
The YONGNUO Speedlite Transmitter YN-E3-RT II is a transmitter for wireless flash shooting. It can control up to 5 groups (15 units) of Speedlites that have a wireless multiple flash shooting function using radio transmission. The transmitter also has dust and water resistance equivalent to EOS-1D series cameras.

Specifications
Type: On-camera Speedlite transmitter
Compatible cameras: EOS type-A camera compatible with E-TTL II/E-TTL autoflash
Exposure control system: E-TTL II/E-TTL autoflash, manual flash, stroboscopic flash, Gr flash
Slave unit control: Up to 5 groups (A/B/C/D/E), up to 15 units
Transmission distance: Approx. 100 m
Power source: 2 AA/LR6 alkaline batteries Ni-MH batteries
Wireless flash shooting Approx. time:1 0 continuous hours
Power saving: Power off after 5 min. of idle operation
Dimensions: Approx. 67.7 (W) x 66.7 (H) x81.3 (D) mm
Weight: Approx. 110 g (transmitter only,excluding batteries)