Wagan Heated Massage Lumbar Cushion With Vibrating Massage Mechanism.  Per the Manufacturer: "This stylish cushion is made for extra comfort.  It is ergonomically designed and built for lower back support.  The cushion's built-in motors massage your lower back muscles with the flip of a switch.  Now you can relieve your back aches and pains while you sit.  The massager operates on DC power with an included adapter.  Ideal for car use, as well as office and home use.  Built-in heating element provides gentle heat to lower back.  Durable, washable cover."  DC adapter included.  Excellent condition; open box, but unused.  Prompt shipping.  Thanks for viewing!