Ke Peng blister card packaging for household doorbell, doorbell and battery loaded in, and use of battery-powered, reference wholesale price negotiable, Qty 60 calories/piece, minimum order quantity is 1 or more. Ke Peng household doorbell not aging, fading and corrosion of materials and so on, using wireless installation design, square designs, reducing the trouble and expense of installation and accurate "RF ISO code" technology from interfering with each other. Ke Peng household doorbell sound built-in dual stereo speakers, sound crisp, units for homes, restaurants, factories, and other places of use, material selection of high quality industrial plastics fabrication from.