• An economical alternative to radio wireless triggering devices. This PGIR-20 trigger device can slide into the camera's hot shoe, or can be connected via the supplied PC cord.
An infrared signal is sent to the infrared slave built-into the strobe unit and triggers the light. Can trigger lights to a distance of up to 50 feet. Recycles in 1 second, has push to test button and requires 2 AA batteries (not included).