Skillbuildersä Strap Wedge 20 x 22 x 4 11¨ Scales Physician Beam Ultrasound Unit With 5 cm Color:Yellow Ultrasound Unit With 5 cm Applicator * The Sonicator 740 is 1 and 3 MHz therapeutic ultrasound unit which comes with a 5 cm˝ dual frequency applicator * It is light weight and portable and features a universal applicator cable to make changing applicators quick and easy * There is an optional rechargeable lithium ion battery pack that truly allows you to take therapy on the road with you * Large soft touch controls let you set up treatments quickly and easily and the backlit display shows all treatment parameters and conditions * Weight: 3 Universal Charger Complete With Two Rechargeable NiCad Handles * Colored LED's indicate power to the unit and that the handles are seated in wells and charging * Comes complete with 2 3 5 wide velcro positioning straps provide support when positioning the child * Without the removable straps the deluxe wedge functions just like the standard Skillbuilders© wedge *