LED strip wrapped around the inside edge of the box. They operate with the Govee app on a smart device via bluetooth also has an inline controller on the power cord. Powered with a 7' foot cord with 110 volt US plug. You can select a solid single color of your choice, select from many different blinking sequences and also choose for it to blink using the sound sensor. The strip has a built in sound sensor to sense sound and blink to your music or sounds from a near by source. The app has tons of scenes to choose from along with a DYI option to make your own.
***** NOTE FOR OVERSEES BUYERS ***** THE POWER REQUIRES 110 VOLTS. A stepdown convertor may be needed from 208v to 110v. THE BOX DOES NOT PLAY MUSIC. The lights sense sound from a near by source.