Omron® Intelli Sense® Blood Pressure Cuff, Large, 1 Each Oxygen Tanks 12 by 15 inches with Hip Kits 12 by 15 inches with 2 Mil Dual Channel * 4000 mHz * Unit comes complete with: set of 2 wires pack of 4 silver silver chloride self sticking electrodes 9V alkaline battery ac adaptor instruction book and attractive carry case * Dual channel quadra polar * Adjustable pulse amplitude * Carrier frequency plus interference frequency * Sweep and treatment timers * Shipping Carton Size: 12 L x 10 W x 6 H * HCPCS Suggested Code: E0730 * Interferential stimulators use a fixed carrier frequency of 4 000 Hz per second and also a second adjustable frequency of 4 001 4 400 Hz per second * When the fixed and adjustable frequencies combine (heterodyne) they produce the desired signal frequency (Interference frequency) 32 42 mm circumference For use with HEM 907XL Omron digital automatic blood pressure monitor