ProGrip: Reassuring Ergonomic Battery Grip for Mobile Phones by SHIFTCAM — Kickstarter

The ShiftCam ProGrip wants to turn your smartphone into the ultimate camera rig: Digital Photography Review

ProGrip: Ergonomic Battery Grip for Mobile

The ShiftCam ProGrip turns any smartphone into a full-fledged professional DSLR camera - Yanko Design

ShiftCam ProGrip: Shoot, Grip, Charge, Expand, Dock

ShiftCam ProGrip: A Reassuring Ergonomic Battery Grip for Mobile Phones

Introducing ShiftCam2.0

ProGrip: Ergonomic Battery Grip for Mobile

RevolCam: The Multi-Lens Photo Revolution for Smartphones by SHIFTCAM » ShiftCam 6th Campaign - ProGrip: Reassuring Ergonomic Battery Grip for Mobile Phones — Kickstarter

ShiftCam ProGrip: Shoot, Grip, Charge, Expand, Dock