This is a microphone-shaped vocal training device that allows you to relieve stress and burn calories while singing. ◾️It helps with vocal training and burns calories through singing. You can expect to burn approximately 7.59 kilocalories per song. I received this as a gift and have kept it stored. It has been opened once, and the box has some scratches and dents, so I'm listing it as "Like New." The instruction manual has some creases. I appreciate your understanding and look forward to your purchase.