Use at home and car. One button operation. Overheat protection. 15 Minute auto shut-off. 360 Degrees deep kneading. Kneading massage. Thermotherapy. Compact design. Enjoy massage time in car. DC adapter included. Adjustable elastic straps. Soothing heat function. Easy, multi functional control. 1. Start & Heat: Press power button once to start and heat. 2. BI-Direction: A quick press of the power button will change the direction. 3. Massage: A quick press of the power button will massage only. 4. Power Off: A quick press of the power button down will stop the massager. Sleek & Versatile: Neck & shoulder; Belly; Lower back; Legs. Lightweight & portable.