Corded Version,Need to be connected to power supply to use: Back massager one simple press on the power button to enjoy real comfort and relief. Neck massager with a unique and flexible strap, you can easily adjust. Three custom speed modes give you need to massage your neck. Shiatsu neck and back massager overheat protection and 15Min auto-shutdown feature (Need to be connected to power supply to use) (Can be turned off manually) DEEPER KNEADING MASSAGE Neck massager uses eight Bi-directional rotation kneading massage heads. Back massager also capable of massaging in two directions if needed, with a simple one-button switch to choose which one. As you would expect from any back massager, the back and neck massager can also massage your back, waist, limbs, and shoulders along with being very effective at providing your neck with the comfort. HEATING FUNCTION It is important for any neck massager you might consider buying to be not only easy to operate but comfortable as well. Our Shiatsu neck Massager Pillow has this feature. Neck massager is lightweight and comfortable to wear for a long time. Thanks to its built-in heating function, neck massager pillow for home, office, car and travel use, it has a AC adapter and a Car adapter that will be more convenient for you. DURABLE AND COMFORTABLE MATERIAL Neck and shoulder massager high-quality leather and breathable mesh fabric, back massager is easy to use and clean and allow you to enjoy a relaxing massage. Back massager as a gift, the neck massager is well designed. Back massager is a good helper for home and travel.