The Circulation Promoter Pro builds on everything that was great about the original Circulation Promoter but with more treatment features to help relieve your pain. Coupled with our AMP technology and utilizing TENS, EMS, and NMES therapy the device has dual independent ports to treat two different body parts at the same time. It also features 6 different therapeutic modes, an auto-shutoff timer so that you can select 20, 30, or 40-minute treatments, and because life happens a pause button to stop and restart your treatment as you need.