HI-RES AUDIO CERTIFIED WITH TERRIFIC SOUND QUALITY - Hi-res audio certified. You can now play high-quality sound sources without compression and enjoy lossless music. DESIGNED BY PHIL JONES Aesthetics and technical aspects designed by famed audio engineer, Phil Jones, to create a truly professional-grade sound. BUILT-IN AMP WITH SUBWOOFER OUT & MULTIPLE INPUTS - The system reserves a subwoofer signal output in case of a situation that needs low-frequency rendering with strong bass. Input Mode: AUX, PC, USB, Optical, Bluetooth 5.0 with aptX. UNCOMPROMISED PERFORMANCE - Unique horn-loaded aluminum ribbon tweeter and a proprietarily-designed 4.5inch aluminum cone mid-woofer driver results in full and three-dimensional sound with each detail well defined. 2 YEAR WARRANTY - Guaranteed high quality and reliability with hassle-free parts and labor warranty for two years in the USA and Canada.