Luminous speakers, a real asset to your desk is this speaker set from No Fear! This speaker set can be connected to any device that supports Bluetooth, or connected with a cable via AUX. The USB speakers are ideal for use as a speaker set for the PC, for example while gaming. The speakers emit light in different colors and the bass, treble and total volume can be adjusted on the speaker. Input power: USB power supply (5V, 1000 mA). Connection: By AUX or Bluetooth