Long Distance Wireless Range This wireless doorbell has a remote connection of up to 300 M/1000 feet, ensuring that you will not miss any visitors and will not interfere with other devices in your home. Waterproof & Durable IP44 grade waterproof doorbell can withstand severe weather conditions (-25 to 55, 5% RH to 95%RH). The transmitter is equipped with a 12V/23A battery and has a maximum service life of 2 years. 38 Chord ChimesThis wireless doorbell receiver has 38 kinds of chord-quality music and 4 adjustable volume levels, ranging from 25db to 85db. When the volume setting is low, the colored flashing lights will remind the hearing impaired. LED IndicatorWhen the transmitter is pressed and a signal is received, the color LED indicator on the plug-in receiver will flash. Color flashing can help people with hearing impairments, and can also be used as an emergency alarm for elderly patients. Easy to InstallJust plug the wireless doorbell receiver into the power socket, and then connect the transmitter to the outer wall with double-sided tape or screws. The wireless doorbell has a memory function, and you don't need to reset the tone and volume level after a power failure. The plug-in wireless door chime and push button make it easy to replace your home's generic doorbell ring with a chime tune that better fits your individual style. The doorbell adopts a wireless design, so there is no need to knock on the wall to install the doorbell. The package comes with double-sided adhesive, just simply stick it on the wall. Get ready for Easter! Ding dong.