The Vivitar DIY Speaker Box allows you to build your own working speaker sound system. It works with smartphones using induction technology to connect with the speakers. Assemble all the parts to make your own speaker and listen to your music after your masterpiece has been built! Made with a cardboard body, this set is flexible to any human errors making for an easy and engaging building process. It's portable and light weight with a built in handle for easy on the go access.