Rockville ROCK MEDIA BK is a 100-watt 2.1 channel speaker system that is perfect for use as home audio, computer speakers, bedroom speakers, and bookshelf speakers. It features a 4.5" subwoofer that adds more depth to your tunes and two 3” high range speakers that are crystal clear. The system delivers an impressive 100 watts peak output power and 40 watts continuous RMS. It has a built-in top-quality Bluetooth technology with an enhanced data rate and 33 feet range.