POWERFUL PARTY SOUND: Front tweeter and woofers combine to give the XP500 a superb sound, punchy and deep with clear vocals and a crisp surround sound feel. Perfect for parties, but just as good for setting the mood inside your home. X-BALANCED SPEAKER UNIT: The innovative X-Balanced Speaker Unit has a non-circular diaphragm with more area than conventional speakers. That means that you’ll get a richer, clearer sound, no matter what style of music you’re listening to. LISTEN LOUD AND CLEAR: The combination of the X-Balanced Speaker Unit and front High-efficiency Tweeter deliver a powerful, rich, crisp sound over a large area. That means more people can hear your great music. BATTERY LIFE: At a good party, no one wants the music to end. And with 20 hours of battery life when fully charged, this speaker will keep going for almost as long as you can. CHARGE UP IN A HURRY: If you find yourself a little short of time, don’t worry. Quick charging will give you 80 minutes of play on just a 10-minute charge.