Xeroform™ Xeroform Petrolatum Impregnated Dressing, 1 x 8 Inch, 1 Box of 50 Waste Cans All Types 2 Channel Electrotherapy * Easy to add modularity 07090727312 2 Channel Electrotherapy * 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 stabilization and compression of the knee joint following ligament or meniscus * Sterile Xeroform gauze dressing helps maintain a conducive wound healing environment for faster recovery This non adherent gauze dressing won't stick to the skin