Introducing the world's smallest and most versatile bone conduction speakers. Our patent-pending technology turns any hollow object into a speaker, amplifying the sound to make it five times louder than a regular phone. The built-in bluebottle allows anyone to connect, and the audio means you can be on the phone while enjoying your music. The speakers also have FM radio and a six-hour playing time, so you can enjoy your tunes all day long. Just charge for one hour and you're good to go!