Bose Wave SoundTouch Music System IV, works with Alexa, Platinum Silver (738031-1310) Works with Alexa for voice control (Alexa device sold separately), Power Cord - 8 feet Enjoy all your music easily: online music services, Internet radio, your stored music library, CDs and AM/FM radio Exclusive Bose waveguide speaker technology delivers lifelike, room-filling sound Wireless connection via your home Wi-Fi network; also works with Bluetooth. Supported audio formats: MP3, WMA, AAC, FLAC, Apple Lossless One-touch access to music services (Amazon Music, Spotify, Pandora), Internet radio and music library playlists with six personalized presets on the remote or SoundTouch app Ask away. With the new Bose Skill for Alexa you can now enjoy hands-free voice control of your SoundTouch speakers using any Alexa-enabled device  like the Echo Dot