Compact speaker delivering big HEOS Sound. Ideal for small to medium sized rooms, such as bedrooms, offices or kitchens. This compact but full-featured speaker plays cloud music, music stored on your phone or tablet, plus USB and NAS sources, too. Now you can even play content through Bluetooth. Meaning you have options. It also features a carefully designed blend of two custom full-range drivers and a two-channel class D amplifier, all controlled with state-of-the-art digital signal processing that was born in the recording studio. Translated from the tech: these small, powered speakers produce big, clear sound from highly tested, recording studio-grade engineering with support for high resolution audio.