Medicool Diabetic Poucho Case For Insulin Travel Double Pen Otoscope Opthalm Replac Heads Includes Device batteries lead wires Color:Yellow 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 Compatible system:Android 4 5 x 7 * The poucho case is easily activated with just water * Large enough for pens and bottles * Keeps insulin bottles or pens cool without refrigeration * Great for active travelers * Can be used and re activated a hundred times * Stays cool up to 4 days Supplies Not Included Double Pen 3