BOSE UB-20B Wall/Ceiling Bracket Speaker Mount Black New Factory Sealed A1 The BOSE UB-20B Wall/Ceiling Bracket Speaker Mount in black is a new factory-sealed product designed specifically for Bose speakers. With a fixed height stand feature, this bracket is compatible with the BOSE UB-20B model and is the perfect accessory to securely mount your speakers on the wall or ceiling for optimal sound quality and aesthetics. The sleek black color and one-size design make it a versatile option for any home audio setup.