Pair your device with the Sonic Glow's built-in Bluetooth wireless speaker, and it'll automatically connect going forward so you can enjoy your favorite music on the go. Razor's innovative music-matching system detects the song's beat and synchronizes multi-color LED lights built into the deck and steering tube, giving you a mobile light show that dances to your music. The Sonic Glow's brushless, rear-wheel, hub-driven motor provides plenty of torque without the noise. That means you can enjoy cruising at up to 10 mph and still hear your tunes clearly.