Key features

• •Lumbar support keeps spine in proper alignment; additional heat therapy and massaging function relieve back pain from long periods of sitting.
• •CAUTIONS: Ensure to insert the plug into the bottom of socket and turn around the socket to ensure the tight fit between plug and socket. The key is the "contact" between plug and socket. When the "contact" become loose caused by the unavoidable bumping car along the road, the electrical resistance will become high and generate high heat between the "contacts" and become possible malfunctions. As such, the driver has to check the "contact" is always firm and tight from time to time.
• •3 Massage Modes: Normal, Wave, Pulse. ON/OFF wheel to set desired level of massage intensity (Min. - Max.); 2 Heat Settings: Low: gentle warm up, High: instant heat.
• •High density polyurethane foam with unique saddle shape ensures best muscle relaxation for back stress and oppression. Easy height adjust by one counterweight; ultimate intuitive function for users' position preference. (Tutorial Video: http://amzn.to/2qRNCEa)
• •Travel portable and lightweight, including 12V car plug for car use and optional home adapter for home use (not Included, check link: https://www.amazon.com/dp/B00XBNVJ4E).