Connected doorbell and video door phone -Wireless push button ringtone 58 melodies generation transmitter EU black 1 to 2 Highlights brand generic Wireless push button ringtone 58 melodies generation transmitter EU black 1 to 2 Description :-This is a unique wireless doorbell, the difference between other plug-in doorbells is the push-button self-generating launcher, no batteries or wires needed, it can supply itself after pushing; - It can reach about 200m in the open air, the push button transmitter is IP44 waterproof, acceptable for outdoor use; Music doorbell, with 58 melodies selection, 6 level volume up/down; - LED indicator, you can add launchers or receivers according to your needs, it can be heard from any room rather than miss the visit; -Easy installation, no wire needed, don't worry about screwing the wall, stick the bell of the launcher outside and plug the receiver inside, then it will start working for your home convenience and safety ; Specification: Material: ABS Plastic Laucher: Approx. 82 x 46 x 21mm Receiver: approx. 95 x 65 x 24mm Working distance: 200m Voltage: AC220V Plug: EU Package includes: 1 x wireless doorbell (EU) Note: 1.Due to manual measurement, there is a slight difference in color and size between the article above and the actual article. 2. Keep the detector and receiver in sheltered places to avoid contact of both units with water and direct sunlight. 3.Clean the detective regularly with a damp cloth to avoid sensor clogging. 4.Press the push button harder, otherwise it may not generate enough power.