Vender Wireless doorbell home smart music plug-in doorbell elderly pager battery M525+F51 likephone al mejor precio

Package Included: 1*host, 1*doorbell button Specifications: Simple design, light and small, easy to install 32 music, the first is beautiful and beautiful, the volume is adjustable in four levels Strong penetrating power, long transmission distance, stable wireless signal Sensitive and easy to use, zero false positives, plug and play Doorbell button use: One battery can be used for more than 1 year The doorbell button uses a 12V battery, and the host uses household electricity, which is less than 1 kilowatt-hour a year. The specific battery duration is related to the frequency of use Description: Product name M525 home wireless doorbell Working voltage: AC100-240V Wireless frequency: 433MHz Working temperature: -10°C-50°C Wireless distance: 150 meters (open area)