Electrotherapy machine, audio electrotherapy machine, ultrashort wave electrotherapy machine, transcutaneous electrical nerve stimulation device, what is the difference between the four devices?

Audio electrotherapy machine is a low-frequency electrotherapy method, with anti-inflammatory, decongestive, analgesic, and promote the recovery of vascular nerve function. Can cure a variety of clinical diseases, especially for intestinal adhesions, large scars, lateral femoral dermatitis, herpes zoster, lymphadenitis and thrombophlebitis, etc., have a better therapeutic effect. Ultrashort wave electrotherapy machine is a therapeutic instrument that utilizes the high-frequency electrical energy of ultrashort wave to act on human muscles. The main therapeutic effects are pain relief, antispasmodic, anti-inflammatory, enhance blood circulation to promote tissue growth and fluid absorption. Transcutaneous Electrical Nerve Stimulation Instrument can be used for a variety of acute and chronic pain symptoms: postoperative incision pain, ligament injuries, acute sprain and contusion, dysmenorrhea, joint pain, cervical spine pain, limb stump pain, epigastritis, sympathetic dystrophy reflexes and so on. It can also be used for transcutaneous treatment and highly effective electroacupuncture (electro-acupuncture). The scope of electrotherapy instrument is more extensive like audio electrotherapy instrument, ultra-short wave electrotherapy instrument, transcutaneous electrical nerve stimulation instrument belongs to the category of electrotherapy instrument.