Dallfoll Wireless Doorbell, Door Bell with 1 Transmitter and 1 Receiver, IP44 Waterproof Doorbell, 4 Adjustable Volume Levels with 45 Melodies, LED Indicator, 300M Range, for Home, Office, Hotel

Long Distance with Strong SignalIn an open range of 300M/1000ft, the signal can penetrate obstacles very well. The wireless signal can be used through walls with strong penetrating power. The doorbell and the receiver are paired with signals one by one, so it won't be confused with others. The distance between the doorbell and the receiver can be up to 300 meters.
45 Ringtones and 4 Volume LevelsUnlike simple polyphonic melodies, there are 45 ringtones for you to choose. The sound quality is clear and beautiful, including classic ringing music and musical tones. From 0-85dB, 4 volume levels can be adjusted. It can directly solve the volume problem, and you can also set one-key mute and do not disturb, which is convenient for the elderly to use.
Easy InstallationJust plug the receiver into the power outlet. The chime can be fixed to the door frame with adhesive tape, or with the screws and anchors that come in the package. When someone visits you, the blue LED will flash.
IP44 Waterproof and Dust-proofWith IP44 grade sun protection and waterproof, the service life of the doorbell will be effectively extended. It can work well in bad weather, without worrying about rain, snow or strong sunlight. Suitable for families, offices, hotels, dormitories, factories, etc.
Energy Saving for Long LifeThe doorbell is energy and electricity saving, so there is no security risk. Safety circuit, long time use without heat. No need to install batteries, can be installed and used directly.