Yamaha RX-V481BL Receiver (Black), Works with Alexa Works with Alexa for voice control (Alexa device sold separately). 5.1-channel surround sound Add audio in up to 9 additional rooms with MusicCast Fully loaded with Wi-Fi, Bluetooth, AirPlay and Spotify Connect Stream Pandora, Spotify and thousands of internet radio stations 4-in, 1-out HDMI with 4K Ultra HD pass-through and HDCP 2.2