Polk Audio TC80i Round 2-Way 8-Inch In-Ceiling Loudspeaker (Single, White) Single round 2-way in-ceiling loudspeaker for custom installed sound systems Equipped with one 8-inch dynamic balance mineral/polymer composite driver with rubber surrounds Frequency response: 30Hz-27kHz Equipped with an aimable 1-inch silk dome tweeter with neodymium magnet Durable, moisture-resistant materials for safe use in kitchen, bath and sauna