I have been having problems with my lower back for years and have suffered and hurt for a long time. I was very anxious to try this in hopes that it would give me some releaf without hanging to take something for it. The machine is very small and very easy to apply and use. It has 8 different setting to use and I found just the right setting to help me get some comfort. Some settings where too much for me so I had to play with it and find just the right one. I would recommend this Santamedical PM-180 Tens Unit by Gurin Products. Sample provided without obligation.

Santamedical PM-180 Tens Unit

Product Description

Santamedical PM-180 Rechargeable Tens Unit Electronic Pulse Massager is a compact, portable, micro-computer controlled device. It can be used in many areas in your body, including arms, neck and shoulders, back, low back, legs, feet, joints etc. It may help to relieve pain and numbness in the following situations: Stiff neck; Muscle pains from over-exercise or stretch; Numbness from some chronic condition; Carpal-tunnel syndrome; Relieve pain and relax muscle spasms, or may prevent muscle atrophy. Recharge the internal lithium battery to keep them powered up for massages In the box:- Tens Unit handheld controller 4 electrodes - A TENS unit manual - TENS Unit - 2 sets electrode wires- Wall Unit charger- USB Cable - Pad and Wires Collector Operating Manual.

http://www.amazon.com/gp/product/B00XQIKEAE?keywords=tens+unit