The remote trigger for flashes and outdoor flash is used as the controller of synchronous trigger flash of . It consists of a sender and a receiver trigger and works by means of the modulation wireless remote control. Feature - Color: Black - Material: plastic - Size: 7.6 x 3.25 x 3cm - This flash trigger device is control discreteness for to trigger hot shoe flashgun synchronously. It’s made up of two parts named transmitter and receiver. Work through wireless remote controlling. - Multi-purpose trigger set allows you to wirelessly trigger your or flash. - Operating Distance: up to 30 meters (100ft) - Receiver trigger adopts dry battery for power supply, which is safe, energy-saving, and convenient. - capability; reaction speed, the highest synchronous can reach 1/250 sec. - The trigger is only 0.01MA, which will definitely cause to of the . The transmitter is applicable to the traditional or digital with hot shoe controlling interface. Compatible with Nikon and so on. Specification - Power Source: 23A AAA battery x2 - Outdoor operating distance (open area): >40M - Indoor operating distance: >10M - Channel: 4 - Operating : FM - Synchronous Speed: Max 1/250sec Package list: 1 x flash trigger 2 x Receivers