Purell™ Healthy Soap™, 1 Case of 2 Otoscope Heads 2 Channel Combination * Easy to add modularity or caregivers to reduce 2 Channel Combination * Easy to add modularity allows the addition of two additional channels of electrotherapy light therapy or a battery module * High contrast 5 (13 cm) FSTN LCD monochromatic user interface * Two independent electrotherapy channels expandable to four independent channels * Multiple waveform electrotherapy six clinical waveforms: Interferential Premodulated High Volt Russian Symmetrical Biphasic and Microcurrent * Documentation of treatment data with Patient Data Cards * User defined protocols for your specific needs * Dual frequency ultrasound at 1 or 3 Completely launderable Remarkably mild healthcare formulation removes over 99% of dirt and germs without antibacterial ingredients or harsh preservatives 1200 mL dispenser refill bottle