The Hi-Dow-XP Micro is a dual-channel battery operated muscle stimulation system that helps to relieve minor muscle aches and pains. This pocket sized pain fighter is the new and improved version of our popular XPIII unit. The XP Micro offers everything the made the XPIII so popular: the compact design, rechargeable battery, and 2 output channels, but this new unit has 6 massage modes instead of 4 modes. Included in this package: Hi-Dow-XP Micro unit, 1 set of large single sided adhesive electrode pads 2 ½ inches, 1 set of small single sided adhesive electrode pads 1 ¾ inch • Electrode Wires ,USB Cable, AC Adapter, Instruction Manual Features, LCD display,Adjustable timer, 2 outputs ,6 Modes, Rechargeable internal lithium battery,20 intensity level settings