Integrating a gravity sensor that detects your body position and adjusts vibration output automatically, this 17.5 in platform adds a hands-free dimension to standard vibration training. Ten speed levels are accessible through the built-in sensor or a wireless remote, and the Led display reports your current settings in real time. The metal-and-abs frame supports up to 220 lbs, and silicone foot grips stabilize the base on smooth floors. The 13 lb unit requires no assembly and plugs into any 120V outlet.