Progressively Tech. This 5.1-channel AV receiver offers Wi-Fi,Bluetooth and the latest streaming technologies. 5.1-Channel powerful surround sound Wi-Fi,Bluetooth, AirPlay, Spotify Connect and MusicCast multi-room Pandora, Spotify, SiriusXM Internet Radio, TIDAL, Deezer, Napster and more HDMI with HDCP 2.2 (4 in/1 out) 4K Ultra HD, HDR10, Dolby Vision, Hybrid Log-Gamma and BT.2020 Voice control using your Alexa device like Echo or Echo Dot MusicCast Surround capable: add MusicCast 20 or MusicCast 50 speakers to create a 5.1-channel setup with wireless rear surrounds