- S -AIR® wireless multi-room receiver/speaker system
- Clock/Timer/ Sleep function
- 8 Watts (RMS) (4W x 2)
- Expandable up to 4 S-AIR receiver/speakers systems
- The SU-4 Wireless Remote TTL Flash Controller enables wireless remote flash with automatic TTL or manual exposure control
- Can be attached to any current Nikon Speedlight and many previous models
- Detects the firing of the master flash (including built-in Speedlight) and sends a firing start signal to the slave unit
- Terminates the firing of the slave flash by detecting firing stop signal. Eliminates the need for connecting cord
