Five-Level Adjustable Volume & Wide Music Selection - This wireless doorbell chime is equipped with five adjustable volume levels, ensuring clear sound in different environments. In addition, it provides 60 diversified music options to meet your personalized needs, bringing a touch of freshness to every visitor's ringing. Wide Wireless Range - Wireless doorbell outdoor powered by powerful wireless transmission technology, the operating range of the chime reaches up to 300 meters. This ensures stable signal reception even in large houses or spacious backyards, so you won't miss any visitors. Wireless Doorbell with Battery - Equipped with three 1.5V batteries, this door chime offers long-term stable use, eliminating the hassle of frequent battery changes and ensuring that the chime is always ready to alert. IP44 Waterproof Design - With an IP44 waterproof rating, this outdoor doorbell is suitable for for outdoor use, effectively resisting daily rain and splashes, ensuring normal