Have Fun, Start a Silent Disco! The KitSound Five Up means that you can have your own silent disco. When you find that track that you really fall in love with, share it with up to five people at a time, so that they too can enjoy a fantastic tune. Great Design The Five Up is tough and built to last, and is also ultra-portable and extremely simple to use. All you do is plug the Five Up into your phone, tablet or MP3 player with the included auxiliary cable and start attaching your headphones. Or for increased sound, you could even plug in up to five speakers.