• Brand & Model: YONGNUO RF-603C
• Camera models supported: Canon 1D/5D/7D/10D/20D/30D/40D/50D
• 1-in-2 design, one RF-603 remote controller can work with two flashes (install on the transmitter)
• Functions as a receiver and transmitter
• FSK 2.4GHz wireless receiver up to 100 meters
• Supports on-top flash triggering
• Supports remote control shutter release function
• Note: Does not supports Nissin flashes.