Meike MK-AR7 Built-in 2.4G Wireless Remote Control Vertical Battery Grip Holder for Sony A7 A7r A7s

Features:
This is a professional vertical battery grip for Sony Alpha A7 / A7R / A7S.
This Vertical Grip also can hold two NP-FW50 Lithium batteries(not included) – effectively doubling your shooting capacity.
With AF/MF/AEL functions.
With two wheels which are convenient for operation.
2.4G wireless channel which is adopted FSK signal mode can more efficiently guarantee the speed, distance and stability.
Remotely control the camera shutter from 100 meters away.(in the open space)
Support screen lock function and lock display mode.
The timer can set delay time, exposure time, time interval and number of shots.