Polaroid Wireless Performance Battery Grip For Canon SL1 / 100D Digital Slr Camera - Remote Shutter Release Included Attaches Through Cameras Tripod Mount And Battery Compartment, Durable Rubberized Suface Improves Grip & Handling Intuitive Placement Of Key Camera Controls Makes Portrait Shooting As Easy As Landscape Shooting Provides Up To Double The Shooting Time Can Also Be Used With Standard AA Batteries Thanks To Included Speedloader Remote Shutter Release Included