This is an electronic viola (silent viola). I bought it so I could play the viola at home, but I'm selling it because I moved right after I bought it and haven't had a chance to play it. It's used by connecting it to an amplifier, just like an electric guitar. I only tested it by connecting it to a YAMAHA AG-03, and it's otherwise unused as an instrument. Would this be suitable for practice at night or when you're concerned about the volume? It's a no-brand product made in China, so please refrain from purchasing if you are looking for high sound quality. Search terms: Silent viola Viola viola Viola Musical instrument Orchestra Orchestral