SPT Wired Door Bell Button and Chime Ringer (2-Pack)
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This doorbell chime features a bell sound. Compact size and easy to install. It can overcome any obstacles during the course of transmission and receiving. The unit is powered by 2 x AA batteries. Stable performance. Electronic Doorbell will not consume the electric energy if button not pressed. It is convenient and it compliments existing motion detectors. package comes with 2-pieces.