Wireless and battery-free doorbell outdoor waterproof IP 65 snow rain moisture white With an advanced automatic feeding mechanism, it is reliable, robust, and efficient. The extension antenna gives you excellent coverage and can pass through walls and tiles without problems. High performance Made of high-quality ABS material, IP65 dustproof and waterproof, it can withstand various harsh weather conditions and is suitable for outdoor use. 38 ringtones to choose from There are 38 ringtones, 4 adjustable volume levels, and you can buy more buttons to set different ringtones on different doors so you know which door has visitors. Versatile For the elderly, infants, and pregnant women living alone, when they need help at night or under special circumstances, they only need to press the transmitter connected to the doorbell, and a loud bell will ring immediately. Strong penetrating power 100% pure, fine workmanship, easy to use, high wear resistance, and excellent durability. Receiver input voltage 100-240 50/60Hz, when the elderly, infants, and pregnant women need to sleep alone, a press of the transmitter will emit a ringtone. Economical and environmentally friendly You don't need to have stock and batteries at home, save money with a battery-free doorbell package. In addition, by avoiding battery replacement, you can avoid the time-consuming and complicated process of battery recycling and live green. Simple and quick installation No complicated programming or other dangerous operations are required, just choose the location of the doorbell and plug it into an electrical outlet. You can then choose the ring volume and melody that suits you. Features Waterproof rating: IP 65 Ringtone: 38 types Volume: Level 4 Range: 150 meters