The Beale Street WP4V-BSC 4" On-Wall/Pendant Speaker is a versatile and high-quality speaker that can be mounted on the wall or hung from the ceiling. It features a 4" polypropylene woofer and a 0.75" silk dome tweeter that deliver clear and balanced sound. The speaker has a power rating of 20W RMS and a sensitivity of 83dB. It also has a built-in transformer that allows you to select between 8 ohm or 70V/100V operation for different commercial applications. The speaker is weather-resistant and has an IP66 rating, making it suitable for indoor and outdoor use. The speaker comes with pendant and surface mounting hardware and a product manual. Whether you need background music, paging, or announcements, the Beale Street WP4V-BSC 4" On-Wall/Pendant Speaker is a great choice for your audio needs.