ProStyle Hinged Knee Support XX Large 20 21 Balance Training 3 MHz frequencies * Ten No greasy film 3 MHz frequencies * Ten new user defined memory positions for User Protocols * Pulsed and continuous therapy operation (10% 20% 50% and 100%) * Beam Nonuniformity Ration (BNR)5:1Maximum * 110V or battery powered option * New ergonomically designed applicators in variety of sizes (1cm2 2cm2 5cm2 and 10cm2) * Applicators are interchangeable with Electronic Signature residing on all transducers * Head warming function on all applicators * Plastic arms provide added comfort Designed to give you the comfort of an elastic support with the therapeutic properties of heat without the perspiration associated with neoprene * ProStyle retains heat to help keep muscle loose * Offers treatment for ACL LCL MCL PCL sprains * Recommened for swollen or tender knees resulting from: sprains strains sports injuries or post operative rehab * Offers treatment for Osgood Schlatter Disease as well as patellar instability * HCPC Code L1810