SMDV Flash Wave 4 Transceiver.
The 2.4GHz FlashWave 4 is a digitalized dual radio transceiver that can act as a transmitter or receiver for triggering remote flashes or a camera. Two transceivers are required for a triggering system.
Highlights:
Simple, Small, Reliable wireless trigger with 80 channels
Can be used to trigger speedlites and strobes
Hot shoe built into the transceiver
Max sync speed of 1/250s; 2.4 GHz operating frequency
The transceiver has an LCD Display Panel