FIVE STAR FS8801 Shiatsu kneading massager with soothing heat. 8 kneading rollers. One button to turn the heat on/off. 2 massage directions. One button to change the direction of rotation. It can be used for neck, shoulder, back, waist, body, arms, legs and feet. Automatic shut down in 10 minutes. Note: You can push the power button again and it will work for another 10 minutes. It is not recommended to use the massager for more than 30 minutes. Portable. Both AC adapter(110-220V AC to 12V DC) and car adapter are included for home, office and car. FIVE STAR FIVE S FS8801 Shiatsu kneading massager with heat is just what you need after a hard day's work to relax for your neck, shoulder, back, waist, body, arms, legs and feet. Size: 22 x 20 x 7 inches.