Designed to work with the Holiday Brilliant Music Box this Bluetooth enabled APP allows you to create your own light show with 8 Preprogrammed Functions and 1 music Sensor/Synchronization mode. You simply plug in your LED or Incandescent Lights or your favorite Tree or Lighting Decoration then pick the desired function on the APP and stream your choice of music to the Music Box via Bluetooth. If you do not want any lighting item plugged in that is no problem. The Music Box is great for just Music and everyday use. If you do not want any Music that is no problem. Just use the functions on the APP and do not stream music. The APP also has 5 Brightness (Dimmer) settings for your lighting items.