CHATTANOOGA, Tenn. (AP) — A Chattanooga-based medical devices company will add 22 jobs over the next 18 months in an expansion.

Hollywog LLC makes devices for pain management and physical rehabilitation. The company recently released a wireless remote-controlled back pain relief device, the WiTouch.

The expansion announced Friday will cost it $400,000 and the jobs created will be in manufacturing and administration.