Our MA770 Wireless Speaker redefines the sound experience for creative minds. Designed with Sir David Adjaye, the WiFi or Bluetooth-connected speaker is made of an acoustically superior proprietary concrete composite. Audio componentry incorporates efficient dual 4" woven Kevlar long throw woofers and a 1.5" titanium tweeter which are tuned to provide a rich, detailed and expansive sound that perfectly fills the home, office or studio. A magnetically attached stainless steel grille is removable for those that prefer the look of the exposed components and hand-finished concrete.