Lumbar or lower back is one of the body parts that can easily get injured or tired during work or sports activities. This model provides lower back physio therapy at the comfort of your home, and it comes with a built-in interface port that allows other aching body parts to be treated by TENS (Transcutaneous Electrical Nerve Stimulation) such as on the upper back, muscle parts, shoulder, neck and even on the soul of the feet. Regular use can reduce and improve lower back aches and pains conditions.