Let your music follow you, without any wires Have you ever dreamed of having a house wired for music in every single room? It's actually very easy to do ? and you don't even need the wires. The Definitive Technology W system makes it a snap. Start off with their W7 speaker in any room ? it's a compact, cube-shaped powered speaker that offers surprisingly big sound. Connect it to your Wi-Fi network, control it with your smartphone or tablet, and you'll be enjoying a wealth of music in minutes. Add more speakers or components to play different songs in each room, or stream the same tune everywhere in party mode. The only hard part is deciding which song to play next. Play loads of music wirelessly with your smartphone or tablet The Definitive Technology W7 offers lots of ways to listen to music. A free app for Apple and Android? is your hub for accessing music stored on your smartphone or tablet. You can also stream music from networked computers and music servers. If you're one of the millions of Spotify Premium subscribers, Spotify Connect lets you access all your favorite albums and playlists. There's built-in support for Pandora Internet radio and SiriusXM. Plus, you can choose from over 37,000 free Internet radio streams, for a nearly endless supply of music and other programming. Play-Fi turns every smartphone into its own music system The key to the Definitive Technology W7's wireless music capability is Play-Fi. Developed by audio innovator DTS, Play-Fi allows you to send the same song to multiple speakers, play a different song in every room, or let each member of the family control speakers independently with their own device. Play-Fi can transmit lossless audio at CD quality to up to 16 speakers or components on your network. Best of all, the W7 can work with other Play-Fi speakers from other manufacturers. That means you can mix and match different brands of wireless speakers, offering more flexibility than closed systems. Innovative tri-polar design When I first saw the W7, I was quite surprised at how small it was. When I heard it, I was jolted by its big, punchy sound. But this compact speaker's story isn't just about volume. The unique tri-polar design features drivers on three sides, evenly distributing clear, accurate sound across a wide soundstage. It's a brilliant design for a speaker that's likely to be used in a kitchen or other room where you're not going to be stationary. The four tweeters ensure you get lots of detail from various listening angles, while the 4" mid/bass driver and dual passive radiators throw plenty of tight bass your way. You'll even get some reflections off of nearby walls, for spacious sound that makes the W7 an impressive music source in almost any room. Product highlights: five built-in drivers powered by dedicated amplifiers one 4" front-firing mid/bass driver and four 1" front- and side-firing aluminum dome tweeters two 4" side-mounted passive radiators for extended bass response tri-polar design offers accurate, balanced sound that's widely dispersed DTS Play-Fi software allows speaker to communicate with other Definitive Technology W devices, as well as other Play-Fi components and speakers built-in dual-band Wi-Fi allows connection to your wireless home network and wireless communication with other Play-Fi devices (recommended maximum of 16 devices on a network) free Definitive Technology/Play-Fi app for Apple and Android devices offers easy music selection and playback plays music stored on Apple and Android smartphones and tablets supports Spotify Connect, Pandora, Rhapsody, Amazon Prime, TIDAL, SiriusXM, and thousands of free internet radio stations (subscription required for some services) DLNA support for streaming music from compatible networked computers and NAS drives multi-zone synchronous playback (same music plays in multiple zones simultaneously) or multi-stream playback (music individually selected for each player) easy wireless setup using your smartphone or tablet plays MP3, M4A, FLAC, and WAV files; sampling rates up to 24-bit/192kHz not compatible with protected files with digital rights management (DRM) optical digital audio input 3.5mm AUX input for connecting an iPod or other portable music player Ethernet port USB port for firmware updates and phone charging play/pause and volume buttons AC adapter included