Varizoom VZ-STEALTH-LX Throttle for Variable-Speed Zoom Control (Black) Throttle provides variable-speed zoom control Dedicated rocker style focus button Low profile record/pause button Mini zoom control designed for Sony and Canon LANC-equipped camcorders Variable-speed thumb throttle for zooming in either direction Dedicated rocker-style focus button and low-profile record/pause button Autofocus on/off control; Data button toggles between tape time and settings Tape Search mode; measures 2 x 1.75 inches; 2-year warranty