Soft, springy massage balls. With heating function when the pillow is positive moving. The massager head can be directed clockwise or counter-clockwise as you prefer Built-in over-heating prevention mechanism. Designed a line controller per ON / OFF to start the machine. Designed to massage acupuncture points in the neck. Portable and easy to operate. 12V DC power supply makes it safe in the home or car. Automatic timer: automatically powers down after each cycle (15 minutes).  Type: Massage Pillow Material: PU Leather + Mesh DC Input: 12V, 2A Rated Voltage: 12V Rating Power: 25W Size: 32*19*10cm (approx.) Frequency: 50Hz Massage: Kneading massager Massage Type: Thermotherapy, Magnetic Therapy Massage time: 20 minutes or less Body Area: Neck, Back, Waist, Legs, Buttocks Physiotherapy way: Infrared Colour: Brown