The Xp Micro is powerful, equipped with 8 therapeutic modes, and rechargable. Dual outputs allow you to use four electrode pads at once. It provides ease of use and is powerful enough to get deep into your muscles to relieve the tension that's creating your pain and discomfort. The power of the XP Micro also aids in building lean muscle and helps speed up recovery. We recommend the XP Micro if you will only be treating one area of your body at a time (e.g. lower back). The package includes: