Basic white textured cover for a design that blends with builder finishing techniques For use with one or two entrances; two-note chime for front door, separate one-note tone for second door so no guest will be missed Order as standard pack of six to assist with your planning and still retain that economical edge Chime wires to a 16-volt transformer so you are assured of uninterrupted service and are never dependent upon batteries (transformer C905, included) One lighted Oil-Rubbed Bronze round stucco pushbutton with non-stick action included so you have one less thing to buy and the convenience of a complete Package