IP68 Waterproof Rating: The waterproof outdoor wireless speaker can withstand the toughest outdoor weather conditions, such as heavy rain, snow, and uneven terrain. We have even tested the tone transmitter in water. This means that the tone transmitter can continue to function normally when the water dries. 150m Wireless Range: The wireless receiver has a range of up to 150m, making it suitable for apartments, villas, and gardens. You can hear the ringtones even if you are in the garden or on the second floor. And it does not interfere with other electrical signals in your home. [No Batteries Required] Our main doorbell comes with a receiver, an environmentally friendly design for convenient living. This doorbell requires no batteries, so you don't have to worry about replacing them. At the same time, this also contributes to environmental protection. [Compatible Design] We have studied most household sockets in Europe and designed the most compatible wireless plug with a waterproof form factor and a simple, exquisite appearance. Suitable for most European homes. The installation of the waterproof outdoor wireless speaker is very convenient. Multiple Ringtones and Call Volumes: You can choose from 38 ringtones and music (plus a quieter option). Most customers choose Ding Dong. The product includes a transmitter, a receiver, double-sided tape, and an instruction manual. It is suitable for home use in limited spaces.