Gain greater handling of your Sony SLT-A77 camera with the Sony VG-C77AM Vertical Control Grip. Whether out in the wilderness shooting landscapes or in the studio doing portraits, the control grip gives your better stability so that you are always in the accurate position for any shot.The VG-C77AM Vertical Control Grip gives you access to extra power - it hold two NP-FM500H batteries (sold separately) so that you stay charged and shoot for longer. Along with the added comfort, the VG-C77AM lets you adjust your SLT-A77 camera settings using the grip itself. Dials and buttons are protected from dust and moisture so that you are never held back by the elements.