NEEWER® Vertical Battery Grip Holder for Nikon D3100 D3200 EN-EL14 DSLR Camera
This high quality battery grip is compatible with Nikon D3100 SLR cameras. It has a built in vertical shutter release button, and can hold two EN-EL14 rechargeable battery packs. Additionally, it comes with a signal transferring cable with which you will be able to use a shutter release.Package Contents:1 X Battery Grip for Nikon D31001 X Signal Transferring Cablebattery not included