The Altec Lansing SoundRover 75 is a powerful portable party speaker with signature Altec Lansing sound and lighting effects. With its rechargeable 4-hour battery and 100-200 AC mains power cable input the music will outlast any party. Convenient carrying handles and wheels make it easy to transport your SoundRover 50 anywhere you go. Instantly create a party experience with the multi-party LED lights that pulse and strobe with the music and create an amazing party atmosphere. Want to boost the volume even louder than 75W? Connect two SoundRover 75's tog