The Jazzy® 614 HD features patented mid-wheel 6 technology and Active-Trac ATX Suspension for an outstanding level of performance, maneuverability and tight turning radius, all in one heavy-duty package. Independent front casters raise and lower as needed to compensate instantly for changes in terrain, making transitions easy. The Jazzy 614 HD features dual enhanced in-line motors for greater efficiency, torque, range and performance.Independent drive wheel suspension allows each drive wheel to be independently supported by a dynamic spring-strut dampening system, reducing the vibrations caused by driving surfaces. All-around performance indoors and out over most surfaces, inclines and slopes, makes the Jazzy 614 HD an excellent heavy-duty power chair choice.Pride FDA Class II Medical Devices are designed to aid individuals with mobility impairments.