Plug-in Doorbell With USB Chargers

Product Feature - The wireless usb doorbell is easy to install, just insert the compact wireless doorbell chime into the USB outlet, and install the bell push button with a sticky pad or screws. - It's designed with dual input voltage 110v-240v. - The operating range of this ring wireless door bell is up to 150 metres on open air, which is applicable for villa, multi-story houses or big property.            - The kinetic wireless doorbell transmitter is waterproof IP44 and no battery required, better suited to bearing up under adverse conditions.                                                                    - 32 sounds selectable on chime,4 level volume adjustable, maxmum sound is 85db at 1m. - Mini size receiver to save freigh…