Sensonic™ Speaker fan 110 CFM, 1.0 sones. Brilliant audio performance concealed behind your fan grille. Dual high-fidelity Sensonic™ speakers. Bluetooth® wireless technology. Brilliant audio performance concealed behind your fan grille. Play any audio through most Bluetooth® enabled devices. Effective, extremely quiet ventilation clears humidity and odors quickly. ENERGY STAR® qualified. Motor engineered for continuous operation. UL listed for use over bathtub or shower when installed with a GFCI protected branch circuit. Type IC for use in direct contact with thermal insulation. Fits 2 x 8 ceiling construction. Includes unique spacer for easy I-joist mounting. Mounts between joists with optional QTHB1 hanger bar kit.