Easy to use do-it-yourself wireless doorbell kit. Connect in minutes with easy mounting pairing & convenient wireless operation. DIY easy set up Connect in minutes with easy mounting pairing & convenient wireless operation Expand by adding more Sensors+ from the Swann DIY Alert Range for a customized alert system for your home or busines. All Swann products carry the ‘Swann lifetime promise’½if you have any problems or issues ring our 24/7 helpline and we’ll help you sort out your issues. Adjustable mounting bracket enables the device to be moved into a comfortable position for use. Battery operated makes this device versatile for placment anywhere.