Accurate, Omni-directional sound and a 4.5” subwoofer for rich, powerful bass. Not only can the Harman Kardon Aura easily produce 360º, room-filling sound, its 6 high- and mid-range drivers join together with its 4.5” subwoofer to deliver a powerful, detailed soundstage which maintains absolute clarity from any angle in the room. Go ahead – connect, stream, turn it up. You won’t believe what you’re hearing. The Harman Kardon Aura Wireless Speaker System has a sound as rich and rewarding as its appearance suggests. With its 6 X 1.5” high- and mid-range drivers and a 4.5” subwoofer delivering Omni-directional, 360º sound, the Aura packs a punch much larger than its modest footprint might suggest.