Dedicated rear speaker for true x surround with individual bluetooth® speaker functionality with a single button press. - true x surround (separately sold true x bars are required to play contents with true x surround.) - bluetooth® - ip67 grade (waterproof and dust resistant) - 55 mm speaker unit x 1 - battery charge via usb type-c connection - up to 12 hours of playback on a full charge (approx. 3 hours) - 88 x 105 x 88 mm (w x h x d) - wall mountable with key hole for a unified coarse screw what's in the box? - wsx1a speaker - usb cable for charging - additional information truex surround - quick start guide - safety brochure