1. Large high-definition display screen, easy to operate 2. The battery compartment on the back is designed to install two AA batteries (the battery is not included in the delivery) 3. Wireless design, more convenient to use 4. Different interface design, suitable for different camera models 5. Compatible with RF603II 6. 6 groups of flash output and focus remote control position 7. M/Multi two flash modes + 16 channels 8. Wireless trigger function, remote control distance up to 100 meters
