Brand: Dual. MPN: LU47PB. The Black Dual 4 in. 3-way Indoor/Outdoor Speakers produce sound beyond their expectations. The size and mounting capabilities make them an ideal solution for your audio needs in virtually any application. The 200-watt handling allows for a match with virtually any source. The anchors and screws to attach the speakers are and must be purchased separately. The hardened steel brackets are suitable only for attaching the speaker to walls or ceilings constructed of solid wood brickwork concrete hollow buildings block or wood studs.