The Honeywell Doorbell Sesame kit includes a wireless doorbell button that can be mounted outside the door and a wireless receiver unit that can be plugged into any standard UK wall socket. The doorbell button operates on a wireless frequency of 868MHz, providing a range of up to 200 meters in an open field. It features a sleek and modern design with a white finish that complements any home décor. The receiver unit features a loud adjustable chime that can be set to different volumes and tones, making it suitable for use in a variety of environments. The Honeywell Door Bell Sesame D814 in White is easy to install and does not require any wiring or drilling. The doorbell button is powered by a 3V lithium battery, while the receiver unit is powered by the mains. The device also features a LED light indicator that flashes when the doorbell button is pressed, providing a visual alert in addition to the audible chime. The Honeywell Door Bell Sesame D814 in White is a stylish and reliable doorbell solution.