"The TENS electrotherapy practices electrical nerve stimulating pulses to deliver non-offensive, pain relief which is completely drug-free. It is a wireless device with a remote control and a 20-minute timer. There are many who suffer from chronic back pain. TENS (Transcutaneous Electrical Nerve Stimulation) electrotherapy is considered an important treatment method which practices small electrical nerve stimulating pulses to provide non-offensive, pain relief which is completely drug-free. The machine is also TGA approved and is engineered to feel less."