Opteka XL Remote Release Cord for Sony Alpha A100, A200, A300, A350, A500, A550, A700, A850 & A900 Digital SLR Cameras (10 Foot Cord) Opteka Remote Release for Digital SLR Cameras Allows the camera to be released from a distance of up to 10 feet Half-press focuses, full press releases the shutter All Electronic - no batteries needed! Brand New, Sealed