Kasonic DB201 Wireless Doorbell, Plug and Play Waterproof Door Bell Kit; Operating Range Up to 1000 Feet; 4 Levels Adjustable Volume; 36 Chimes Quality Sound and LED Flash Indicator (White)Classic Wireless Doorbell Stylish modern design, artful with simplicity. Excellent materials keeps itself from getting higher temperature & interference. Wireless door chime is IP44 waterproof & weatherproof to 4F 140F working temperature. Long Operating Range Kasonic Wireless Door Bell operate range up to 1,000FT 300M in open area ensures you to hear the bell and answer the door in time. No need to worry about interfering with other devices in your