Calming Heat Massaging Neck Wrap by Sharper Image features massaging vibrations that can be turned on and off ! It offers 3 Therapeutic heat settings & 3 massaging vibrations for 9 relaxing combinations. It has an adjustable design, dual strap ensures a custom comfortable fit. USB port allows for use with any USB 5V power pack (not included) for on-the-go or with a standard wall adapter (included)