This sound wave massager releases tense back muscles when I come home from a stressful day and helps when I have a tense stomach also. The Infratonic is highly portable and easy to use. Its rechargeable battery powers quite a few uses before requiring recharging. The simple settings make using it a snap. I recommend it as a non-drug way of achieving relief from muscular tension, external or deeper inside. Unlike drugs, it has no adverse side effects.

Philip Shenefelt.  5 out of 5 stars