Mcoplus BG-A6000 Vertical Battery Grip Holder Pack with Wireless Infrared Remote Control for Sony A6000 Camera Work with 1 or 2 NP-FW50 Battery Compatible: for Sony A6000 Hold one or two NP-FW50 Lithium batteries(Batteries not included). Can recharge the batteries via the micro USB interface, no worry about low power. Remotely control the camera shutter via infrared from 7 meters away.(in the open space) Blueooth APP function allows you use samrt photo with APP to control camera shutter and realize different shooting effects