Easy Installation: We supply two options for installing the doorbell button, with 1) double-sided tape or 2) screws and anchors. Using the double sided tape is a temporary solution. We recommend the screws and anchors. The specific operation please follow the installation instructions. Products Advantages: Music: This new doorbell with music in MP3 format while others generally in MID format, the most stable music chip loading 52 first and the rotating ring let the doorbell sound more pleasant. Sound Volume: press volume button shortly to get desired volume level. 4 levels of adjustable volume from 25db to 110db have been built inside as options. Long Wireless Range: This new doorbell kit supports an industry-leading wireless working range up to 1000 ft.