Varizoom Professional Control for all DV Camcorders w/ LANC Jack Precision, variable-speed zoom control for Sony and Canon LANC-equipped camcorders Ramps up zoom speed from slow to fast and then slower again in single move Pushbutton manual focus is conveniently at your fingertips; industrial-grade aluminum housing Patented speed dial and rocker configuration; LED light indicates recording and other signals 40-inch built-in LANC cable; measures 4 x 6.5 inches; weighs 1 pound; 2-year warranty