The E-Stim II® is the most economical and easy-to-use portable electro-therapy unit. New dual channel, portable, continuous frequency unit features Milli-amp (normal current) and Micro-amp (micro current) settings. Each channel also includes its own green LED light which displays power-on and frequency. Accessories include 2 sets of alligator clip wires and instructions. 9 volt battery NOT included. Item uses a 3.5mm jack. Warranty: 1 year, unit only   ** Not all discount codes applicable with product ** .