Yamaha RX-S601BL Receiver (Black Aluminum), Works with Alexa Works with Alexa for voice control (Alexa device sold separately). Music Cast wireless audio support Built-in Wi-Fi, Wireless Direct and Bluetooth Airplay, Pandora, Spotify Connect streaming service and AV Controller App DSD 2.8 MHz / 5.6 MHz, FLAC / WAV / AIFF 192 kHz / 24-bit, Apple Lossless 96 kHz / 24-bit playback 4K Ultra HD pass-through with HDCP 2.2 support. ECO mode lowers power consumption by 20%