Ever been in a situation where your speakers could not reflect the awesome power and stardom of your voice during karaoke? Or perhaps they could not truly transmit the grandeur of an epic battle in a movie? Well, the Sima 8" Amplified Speakers do away with such disappointment. XL-SP8-PR commercial grade speakers are weather resistant, making them durable and perfect for use outside for a party or inside for a sing-off or movie. They receive both stereo and microphone input and can receive sound directly from your projector. In addition, you have fine tuned control over their sound effects with bass and treble controls on the speakers, and since they are line-out speakers, you can expand your sound system in the future for an even more incredible sound experience.