Definitive Technology UEQA/Di 3.5R Round In-ceiling Speaker (Single) 2-way in-ceiling speaker 3/4-inch (20-millimeter) pivoting aluminum dome tweeter axially aligned with a 3-1/2-inch (8.9-centimeter) bass/midrange driver Simple to install, no spackle work required Flangeless design and micro-perf grille minimize visibility Paintable white finish