Every year, the camera in your iPhone gets better. Every year, the controls stay the same. Take full advantage of your most used camera with the Pictar iPhone Camera Grip. It gives you a dual-stage shutter release that lets you lock focus and exposure like an SLR, as well as wheels for taking control of exposure compensation, zoom, ISO, and/or shutter speed, a toggle for the selfie camera, a strap for preventing drops, a cold shoe for external mics/flashes, and a standard tripod mount. And since it uses high-frequency sound waves of 18500-20000 kHz to operate, its battery life ranges in the months, not hours or days.