【300 Meters Wireless Range】The battery-operated wireless bell can reach up to 300 meters in a straight line, with excellent penetration capabilities. which ensure seamless reception of visitors' messages even when you are indoors. In this way, you will not neglect your guests. 【Adjustable Ringtones and Volume】 Enjoy a selection of 60 unique ringtones, change music with one touch, and enjoy rich, clear sound from the stereo speaker. The volume button is adjustable, you can choose from 5 volume levels that can be easily adapted to your daily needs. The waterproof design ensures a long service life in harsh environments and eliminates the need for an additional doorbell cover. Doorbell therefore suitable for a variety of atmospheres. 【Upgraded digital circuit design】Wireless doorbell with battery with robust anti-interference functions and precise one-to-one signal adjustment. In addition, the door chime also functions as a pager and is ideal for households with older members and