Neewer Replacement Battery Grip Works With EN-EL14 Rechargeable Li-ion Batteries for Nikon D3300 D3200 D3100 Brand New Pro Battery Grip for Nikon D3100 D3200 D3300 SLR Camera; NOTE: Battery Holder for AA Batteries is NOT included Hold 2 EN-EL14 rechargeable Li-ion batteries. Vertical shutter with half-press function. More comfortable vertical shooting. Doubling the battery capacity of your camera, effectively extend your shooting time. Significantly improves stability.Signal transferring cable included.Tripod screw mount.