FAN COMBO:Exhaust fan with built-in Bluetooth High-Fidelity Sensonic Speakers is powerful for rooms (including bathroom) WIRELESS STEREO: Brilliant audio performance concealed behind your fan grille allows audio through most Bluetooth-enabled devices EASY INSTALLATION: Easy to install fan fits 2"x 8" ceiling construction and tapered, polymeric 4 in. round duct fitting for easy, positive duct connection and no metallic clatter RELIABLE: Permanently lubricated AC motor is engineered for continuous operation at 2.5 Sones and 80 CFM for your convenience THREE YEAR LIMITED WARRANTY: Backed by a three year limited warranty for your convenience If you are purchasing in Vermont, Washington, Colorado, Oregon, or Massachusetts we recommend Broan-NuTone AE80BL per state requirments.