The TL1 satellite speaker pair brings digital surround sound excitement to home entertainment in an ultra-compact design. The silk dome tweeter and mid-range driver coupled with Time Lens technology deliver smooth highs, superior audio detail and pinpoint imaging. Polk's proprietary, patented Dynamic Balance technology tunes out distortion-causing driver and system resonances. It also features an "aperiodic-tuned rear port" that is designed for better bass extension and a pleasing mid-bass boost, with the ability to deliver great sound even in the open or against a wall. The unit's hi-Gloss "Blackstone" finish matches today's most stylish flat-panel TVs and furniture. Built-in keyhole slots and threaded inserts makes for easy mounting of the speaker.