Description: Shell with ABS fire retardant material, durable, heat-resistant short circuit, long service life. The installation is simple and convenient. Only two AA batteries are needed to make Ding-Dong sound. ?item without batteries and push button?. The doorbell have stereo loudspeakers, which can be heard very clearly at home. Compact and lightweight and don ’t take up much space. Quick and easy installation?hanging on wall or paste with a double-sided adhesive adhesive. Specification: Material: ABS Plastic Size: 8.7 x 6 x 2.3 cm / 3.43 x 2.36 x 0.90 inch Package Includes: 1 Piece Wired Doorbell Note: Do not mix new and old types of batteries. Due to the battery can not be on the plane, all products don't included battery and push button. Thanks!
