HY-IMPACT Heated Massage Belt with Compression comes with 18 Relaxing Combinations for the Ultimate Back Pain Solution. HY Impact Massage Belt is a 3-in-1 compression belt with built-in Massage Heat and Air Pressure functions. It is designed to help alleviate back muscle and stomach pain with a combination of Deep Tissue Massage Heat and Decompression Therapy (Air Pressure). The easy to use controls lets you choose the combination that is right for you and helps give your back much needed relief and relaxation! It gently soothes and massages your lower back while helping to re-align your spine. Air pressure inflation to help decompress lift stretch and separate the joint in the spine. Features 3 Speed Heat & Vibration Massage Settings (Low/Medium/High) to ease muscle and joint pain-Built-in decompression air bag automatically inflates to lift and stretch your spine. Plugs into any USB power source for use at home at the office in the car or while traveling. Box contains: 1 Massage Belt (for waists up to 46 ); 1 Extended 7.25 foot Cable; 1 Wall Adaptor.