Yamaha RX-V479BL 5.1-Channel MusicCast AV Receiver with Bluetooth, Works with Alexa Works with Alexa for voice control (Alexa device sold separately). Wi-Fi, Wireless Direct and Bluetooth (AAC / SBC) Front panel USB input (iOS) High-resolution audio support (DSD / WAV / FLAC / AIFF / ALAC) Airplay, Pandora, Spotify Connect, vTuner, PC / NAS MusicCast wireless multiroom audio system