“Nice for a small package! I ordered this 2 days before I ordered the exact model I was looking for. Since both of us have muscle pain I decided to keep it and give it a try. For the past 2 weeks I take it bowling; 4 leagues. It s fast relief on my bad knee calves and shoulder. I m undecided about the charging but bad reviews of battery life have not shown up after several recharges. It reads 99% for quite a while then jumps down quickly to 80 the 70 but it lasts for 2-3 hours of bowling with plenty of charge left.”