Klipsch R-40PM Powered Bookshelf Speakers with Bluetooth (Pair) Enjoy powerful sound in your study or anywhere in your home with the Klipsch R-40PM bookshelf speakers. Experience a larger soundstage with edge-to-edge 90" x 90" Tractrix horns that never lose clarity, even at high volumes. Expertly engineered with extra cabinet depth creates a warmer, more impactful sound. These Klipsch bookshelf speakers handle up to 35W RMS and 240W peak for accurate music reproduction. Easy setup, no receiver needed, and PC and TV ready, the Klipsch Reference 40 PM is the perfect powered bookshelf speaker. (Priced as Pair) Product Highlights: Self-powered bookshelf speakers with built-in amplifier Built-in Bluetooth for wireless music streaming 1" LTS (Linear Travel Suspension) titanium diaphragm tweeter with Tractrix® horn 4" spun-copper TCP (thermoformed crystalline polymer) woofers Bass-reflex design with rear-firing port Connections: Optical digital audio input RCA stereo analog audio input RCA in