The Voking Battery Grip designed for 7D Canon. The battery grip has vertical shooting shutter release button, main dial, AE lock button. It lets vertical shooting the same feel as doing it horizontal. The battery grip can carry two LP-E6 lithium batteries or six AA batteries inside and its very easy to handle. The Battery Grip has the same waterdrop proof and dust proof performance as 7D Canon.
Battery: Two LP-E6 lithium batteries or 6 AA/LR6 alkaline batteries
Dimensions: 147.4mm x 114.3mm x 76.9mm