With the Manfrotto Remote Control Clamp EX, youll be able to have control over multi-speed zoom control, control of record start/stop, and RET functionality via a wire that can connect to Sony PMW-EX cameras. The remote features a zoom knob and REC LED indicator, as well as maximum-speed control thumbwheel thats built-into the sides of the control and a sliding reverse-direction switch. Additionally, it includes a set of four replaceable anti-slip pads for increased grip.