RENPHO back and neck massager is the best choice for those who like to relax after a long day. With its 3D deep tissue kneading, rolling, shiatsu, and heat massage modes, it can help you relieve all your stress. It also has a vibration seat mode that helps you relax even more. You will feel comfortable when sitting on this chair because of the vibration function. The machine’s default timer is designed to shut off automatically.