Model TAG-101 Audio Generator. It outputs a sine or square wave from 10Hz to 1MHz.This unit is sold under various brand names on Amazon and other sellers. If you go to Amazon and search for audio generator TAG-101 you will find these listings, the units specs and customer reviews.It is in like new condition, both cosmetics and function. The power cord and output cable are included. I can hook it up to a scope if you want to check it out.Pick up in Hastings.