Yongnuo's latest flash signal transmitter great for outdoor and indoor flash photography. The YN-E3-RT can control 5 groups (or 15 units) of speedlites. Compatible with Canon ST-E3-RT, 600EX-RT.
Features:
- 9 kinds of customizable functions
- Supportive for full-automatic function
- Remote control distance 100 meters
Specifications: 1. Type: On-Camera Sppedlite Transmitter 2. Customer Functions: 9 3. Flash Exposure Confirmation: Flash Exposure Confirmation Lamp Lights 4. Modeling Flash: Fires with Camera's Depth-of-Field Preview Button 5. Frequency: 2405-2475 MHZ 6. Channel: Auto, Ch. 1-15 7. Wireless Radio ID: 0000-9999 4. Dimensions: (3.94 x 2.76 x 0.39)in / (10 x 7 x 6)cm (L x W x H) 5. Weight: 8.25oz / 234g 6. Color: Black