The Cables Unlimited SPK-VELO-4KIT2 4-speaker system features max power output of 10-watt RMS/20-watt that delivers loud and clear audio. Integrated with 2-inch Mylar cone tweeter, this Cables Unlimited 4-speaker system produces clear and detailed high frequencies. Featured with 3-inch rubber edge woofer, these Cables Unlimited Indoor/Outdoor speakers produce low frequency sound. This Cables Unlimited 4-speaker system renders dynamic sound that is loud enough to be heard from 150' away. The Cables Unlimited SPK-VELO-4KIT2 speaker system is equipped with 900MHz Phase Loop Lock circuitry, which gives clear audio signals. These Cables Unlimited Indoor/Outdoor speakers are water-resistant. The Cables Unlimited SPK-VELO-4KIT2 speaker system has a highly stylized design and includes wall mounting system, making it easy to install.