The Calming Sounds Headset Tool is a soundproof headset designed for children with special needs. It’s a headset with a built-in recording device specially designed to allow the parents, guardian, counselors, or mental health experts of a child with special needs to record voices, messages, songs, cartoons, or whatever they have determined will calm down this particular child. We have also incorporated the latest in technology to allow the use of USB connection for direct computer connection or Bluetooth technology to allow interface to wireless tablet devices. It is extremely simple and easy for anyone working with the child or attending to their educational environment. Quoted from the link.