JJC RM-DSLR2 Wireless Remote Control for Sony A6000 NEX-7 Replaces Sony RMT-DSLR2 (Black) Takes X1 3V CR2025 lithium battery Effective within +/- 30 degrees of the lens axis Dimensions: 2.5 x 6.5 x 0.5cm (1 x 2.7 x 0.2") Remotely control your zoom function Half press shutter release