Works with Alexa for voice control (Alexa device sold separately). Wi-Fi, Wireless Direct and Bluetooth (AAC / SBC) High-resolution audio support (DSD / WAV / FLAC / AIFF / ALAC) Air Play, Pandora, Spotify Connect, tuner, PC / NAS 5-channel compact gloss black speaker package with 6 1/2" 100 W powered subwoofer MusicCast wireless multiroom audio system