Bon Form Multi-functional Wireless Digital Doorbell 1 Remote Push Button & 2 Plugin ( Elegant White) LONG WIRELESS RANGE: Wireless Doorbell Kit of 1 push button (transmitter) and 2 door chime (receiver) supports a wireless range of up to 1000ft in the open area DIGITAL MULTIFUNCTION:The digital doorbell offers a total of 36 chime tones, from the traditional Ding Dong to various well-known melodies, and 4 levels of adjustable sound volume changes from high level to low level circularly, meet the needs of different environment EASY INSTALLATION:Push button can be fixed to the door frame with the screws provided, or attached to the wall using double-sided adhesive tapes outlet in your home; ACplug-in) door chime can be plugged into an electrical outlet in your home or office ART STYLE AND MODERN TOUCH:This Wireless Doorbell Kit is a modern high-tech alternative to your old-fashioned doorbell. It brings a whole new level of convenience to your daily life, and the sleek design easily blends with the decor of your home REMINDER LIGHT:Blue LED flashes when someone is at the door