This Neck Back massager is ergonomically designed to merge with the contours of different body parts. Neck massager's 4 Powerful 3D Massage Nodes with automatic rotation every minute to help relax sore muscles like neck pain, back pain, foot pain, shoulder pain, leg pain even your full body pain and tight muscles. The idea behind this relaxing massager s based on 'shiatsu' in Japan where pressure is applied to certain points (similar to acupuncture). With 15 minutes time of massage (scientifically timed), you can have all day comfort you need to grind and accomplish your goals. HIGHLIGHTS Multi-functional Shiatsu Massage Pillow: Shiatsu massager has 3 adjustable speeds allows you to get appropriate amount of pressure to relieve your muscle pain. Suitable for human body temperature (113℉/45℃) infrared heating temperature, it can prevent you from low temperature burns, and assist the neck back massager to give you a comfortable deep tissue kneading massage.  New High-quality Fabric Design: Neck back massager adopt the sofa fabric with a more comfortable smell, softer touch sense and skin-friendly. Made of high-grade and durable materials for long-term use.  Safe & Convenient To Use: Neck back massager is equipped with Overheat Protection Device & programmed with 15-minute Auto Shut-Off to ensure safety.Both AC adapter (110-220V ) and Car adapter (12V DC) are included by back neck massager.