Compliance West MP-BI-P-EN45502 is a 12-inch, 100-watt, 2-way, passive loudspeaker system designed for use in public address and background music applications. It features a 12-inch woofer and a 1-inch tweeter, and has a frequency response of 55Hz-20kHz. The MP-BI-P-EN45502 is also weather-resistant and can be used in both indoor and outdoor applications.