【Strong signal for long range】This white waterproof wireless doorbell has 2 bells, the penetrating wireless signal can be transmitted up to 300 meters in an open space and maintain long distance even with multiple obstacles (doors, walls). You will never miss any of your visitors. The doorbell does not interfere with other devices in your home or your neighbors' homes. 【36 melodies and 4-level volume】High-quality speaker, uses the most stable music chip, built-in 36 melodies, creates a clear and clean sound. Four adjustable volume levels from 0db to 100db. When the bell rings, you can easily hear it throughout the house. Memory function is available for sound and bell settings. 【Waterproof and smart LED design】The wireless transmitter is made of premium materials and is IP44 waterproof, ensuring stable performance for outdoor use. Blue LED on the button and receiver serve as a visual indication for both host and visitor, it is also a pleasant and considerate design for hearing-impaired individuals. Visitors know they have used the correct doorbell because it lights up when in use. 【Easy to install】Simply connect the receiver to an outlet and mount the transmitter on the wall or door handle using the included tape or screws. No hassle with cables. What do you get? 1 * Waterproof transmitter 2 * Receiver Charlemain Wireless Doorbell The wireless bell is easy to use. Two receivers can be placed anywhere, you will never miss your visitor Features: Internal sound: 36 bell tones Volume: 4 adjustable levels (0db ~ 100db) Wireless range: 300M/1000 ft maximum Waterproof (transmitter): IP44 Note: Avoid environmental factors, such as metal, which may affect the doorbell's range. Long range 300 meters The signal can be transmitted up to 300 meters in an open space. Even if separated by walls or doors, they can respond well. The frequency between the two is unique, you don't need to worry about interference with other remote devices Waterproof and dustproof IP44 waterproof and dustproof, suitable for indoor and outdoor use. The wireless doorbell can be used in the range of -20 ℃ -65 ℃, you don't need to worry about sun, rain, snow or other extreme weather conditions such as frost. Blue LED indication When the wireless doorbell button is pressed, the blue LED indicators on both transmitter and receiver blink, giving you a visual alert, this is an excellent feature for hearing-impaired individuals.