The AT8691 camera shoe dual mount makes it easy to mount two ATW-R1700 System 10 digital wireless receivers to a cameras hot shoe, or to a tripod or other device with a 1/4" screw. Comes with 280 mm (11.0") AT8351 dual mono to stereo coiled cable (dual 3.5 mm mono mini-plugs to 3.5 mm stereo mini-plug), allowing you to use one receiver to capture left channel audio, the other to capture right channel audio and feed both into the cameras audio input.