I love the different patterns! I have so many tens machines including some popular expensive models, but this is so good.. Only issues are:
1. Too weak. Needs more power
2. Battery compartment is to small and is not easy to access.
Other than that, it's a great investment and I'm so glad I got it.
ADMIN: Thanks for your review. Power is always a difficult issue as it is a trade off between battery longevity and power. As for the battery compartment, the compartment is intentionally tight so as to prevent the battery rattling around which is something that has been mentioned on previous units. Thanks for your comments and we are pleased to hear that you are enjoying your purchase.