Traditional 'ding dong' sound door chime. Includes bell wire and white bell push. Simple wired installation. Requires 1 x 9V battery (code 66836). Byron 720 Wired Door Chime Kit in White. Classic, welcoming doorbell sound: immerse yourself in nostalgia with the timeless melody of the Byron DBW-24040 doorbell. At 85 decibels, the sound is loud enough to be heard throughout your home, so you won't miss any visitors. Complete kit ready to install: this doorbell kit includes everything you need for easy installation. It includes a chime, a doorbell button and a 5 metre power cable, so you can get started quickly with your new doorbell. Versatile power options: this kit offers maximum power flexibility. To power the included chime, use a transformer for constant power or opt for a 6LR61 battery for added convenience (battery and transformer not included). This versatility ensures uninterrupted operation, even in the event of a power failure. Simple, clean installation: thanks to its two-wire configuration, installation of the DBW-24040 is quick and easy. The kit includes 5 metres of cable and small clips, ensuring a neat and tidy installation on your wall. Elegant wall design: with its sleek, refined design, this Byron DBW-24040 doorbell adds a touch of elegance to the entrance of your home. Thanks to its IP20 protection rating, the outdoor button is weatherproof. Weight: 0.68563763482 pounds, Manufacturer: Byron