Finally, a battery grip for use with Nikon D3100, D3200 and D3300 DSLR. This grip takes one or two EN-EL14 batteries. Effectively double your shooting time and make a small camera body easier to hold. This grip comes with a shutter-release button to make vertical shooting easy and comfortable . A short cable connects the battery grip to the Nikon D3100/D3200/D3300's remote port to provide this functionality.