he RadioPopper Jr2 Transmitter is a 16 channel, 4 group radio transmitter that operates on the 902-928 MHz, ISM band and is capable of adjusting the output of the flash using a separately purchased Jr2 receiver for Nikon i-TTL or Canon E-TTL/II flash units. Triggering and power control from distances of 300 - 1,750' depending on conditions and environment is possible.
Brand: RadioPopper, Model: 1445