Bang and Olufsen Beosound A5Brings the bass. Reads the room. A two way setup with four drivers. The most powerful woofer in any of our portable speakers. You wont just hear Beosound A5 youll feel it. We pack all of our latest acoustic advancements in one compact package. RoomSense adapts playback based on your space, so you always get the finest fidelity. Sound. All around. With 360 degree sound dispersion, everyone can tune into the music or easily narrow the sound direction