Classic® Surface Disinfectant Cleaner, 3 Liter Jug, 1 Each Sensory Stimulation s AFD technology provides enhanced Jobst Relief 20 30 Knee Hi s AFD technology provides enhanced acoustic response: light pressure for low bell type frequency firm pressure for high diaphragm type frequency Extra large bell (1 3 8 diameter) for unsurpassed low frequency response Ultra sensitive diaphragm (1 3 4 diameter) for greater amplification and crisper high frequency response Non chill bell and diaphragm retaining rims for patient comfort Clinician headset boasts reinforcing yoke molded into flexible 22 PVC tubing and stainless steel binaurals fixed at 15ß angle for greater comfort Tubing is soft flexible and made without phthalates Adsoft Silicone coated contact layer and border allows for repeated lifting and repositioning while enabling atraumatic removal Granted 510(k) pre market clearance by fda for use on medical devices Proven effective against major pathogens such as hiv 1 and MRSA broad spectrum activity demonstrated against representative gram + and gram bacteria