Yamaha WX-030BL MusicCast Wireless Speaker with Wi-Fi and Bluetooth (Black), Works with Alexa Works with Alexa for voice control (Alexa device sold separately). Exceptional sound clarity and rich bass from a compact powered speaker that looks great anywhere in your home Works with your home Wi-Fi network as a standalone music system or expand over time with other MusicCast speakers, sound bars and AV receivers to add audio in up to 9 additional rooms MusicCast app lets you access all of your music from your mobile devices, Pandora, Spotify, Sirius XM Internet Radio, Napster and thousands of free internet radio stations Also supports Bluetooth and AirPlay so you can play almost any content; Bluetooth streams can be redistributed to other MusicCast devices via Wi-Fi Two units can be used in stereo mode for a more expansive and lifelike listening experience