It is 2.4G TrigMaster Receiver for Canon 600D 7D 550, and can not use separately. So, be sure that you have already got the whole kit first! Several flash units work together helps increase brightness, fill in shadows and improve the evenness of lighting. So, that's very useful to get more extra receivers if there were several flashguns! With different channels, the photographer can trigger different flashguns in different angle.
- Type: 2.4G radio system
- Power Supply: 1.5V AAA Battery x 2 (not included)
- Size: Approx. 71x 38 x 32 mm
- Compatible with: Canon 600D 7D 550
- 1 x 2.4G TrigMaster Receiver
- 1 x Convert Adapter
- 1 x Sync Cable