Sony VGC1EM VGC-1EM Digital Camera Battery Grip for Sony a7 a7R + Sony 64GB SDXC Memory Card +Two Replacement NP-FW50 Batteries + Accessory Kit Comfort and Control in Vertical Position Holds 1-2 NP-FW50 Batteries Extends Shooting Time Switch Battery without Turning off a7/7R Shutter Button