Jobst UltraSheer 15 20 Knee CT Black Medium Diamond Pattern Carts Utility Equipment just set the ramp in Campylobacter just set the ramp in the desired position and it Includes Device batteries lead wires 1 4pack of electrodes carrying case and users manual * Channel: Dual Channels Isolated between channel * Output Maximum 130 mA (peak value) across 500 Ohm load * Pulse Width From:50 ÊS to 250 ÊS adjustable * Pulse Rate:2 Hz to 150 Hz Adjustable * Wave Form:Symmetrical bi phasic rectangular Monophasic rectangular * Operates on 2 AA batteries (included) * Timer * Jobst makes your legs look as good as they feel * Provides relief from tired aching legs * Reduces mild swelling * Helps improve circulation * Provides continuous relief from tired aching legs and mild swelling * Use gradient technology to help improve circulation and revitalize your legs especially when sitting or standing for long periods of time * Latex free * Elegant diamond design perfect for stylish occasions * Unparalleled sheerness without sacrificing durability * JOBST© Advanced Comfort© gives stocking a light and cool feel for year round wear