Self Powered Door Bell with Receiver Automatic Ringing Push Button Wireless Doorbell

Feature: 1. DOOR BELL KIT: Self powered wireless door bell, no need battery or connecting cable, to avoid the problem of door bell not ringing. 2. LOUDSPEAKER: The wireless door bell is equipped with loudspeaker, covering an area of 200square meters, and has a wide range of applications. 3. WORKING PRINCIPLE: Built in power generation module, automatically converts into electric energy when press the button, send wireless signal. 4. EASY INSTALLATION: Equipped with screws and back sticker, the wireless door bell is easy to install and remove, which is suitable for home use. 5. ABS HOUSING: The door bell shell is made of excellent ABS, with good toughness, corrosion resistance and oxidation resistance. Specification: Item Type: Wireless Door Bell Material: ABS Color: White Weight: 111g / 3.9oz(approx.). Package List: 1 x Door Bell1 x Receiver1 x Back Sticker1 x English User Manual2 x Screws2 x Expansion Screws