Definitive Technology W7 Wireless Speaker (Black) Turn any small- to medium-sized room into a high-performance sound haven with the Definitive Technology W7 audiophile-grade wireless speaker Easily connects to your home's Wi-Fi network for a detail-rich wireless music streaming experience anywhere in your home^ Control all of your music through your phone, tablet or computer through the Definitive Technology app Ultra-compact size engineered with tri-polar technology for crisp, clear, room-filling sound Sleek, minimalist cube design includes four 1" aluminum dome tweeters and one 4" mid/bass driver