HIGH-END SOUND QUALITY FOR SERIOUS ENTHUSIASTS - Audiophile level sound stage produced by the finest quality components. Features ribbon horn tweeters and 6.5in woofers that provide crisp, clear, natural sounding highs and powerful room-shaking bass that doesn't distort at higher volumes. DESIGNED BY PHIL JONES - Aesthetics and technical aspects designed by famed audio engineer, Phil Jones, to create a truly professional grade sound CORDLESS L/R SPEAKERS WITH AN ARRAY OF INPUT OPTIONS - Optical, Coaxial, Bluetooth 4.1 aptX, RCA, AUX, and USB Inputs BUILT-IN AMPLIFIER - These bookshelf speakers come in pairs. One has a built-in amplifier to be used with computers, TVs, record players and more. 2 YEAR WARRANTY - Guaranteed high quality and reliability with hassle-free parts and labor warranty for two years in USA and Canada.