Self-powered wireless doorbell, no battery required, 150m range, European plug, 1 doorbell 1 receiver (white)

No batteries required: Our doorbell transmitter uses the principle of converting kinetic energy into electrical energy and requires no batteries. High performance: Made of high-quality ABS, this waterproof doorbell button is IP44 certified for dust and water resistance. Its operating temperature range is -15°C to +60°C. It withstands various weather conditions. Even in rainy weather, it is suitable for outdoor use. The remote control range is approximately 100 meters (in open field) and 30 to 50 meters (indoors without partitions). (These figures correspond to the test distance without obstacles in open field; the actual distance varies depending on the environment. The more obstacles there are, the shorter the range.) Easy installation: Simply use the included adhesive tape to mount the wireless doorbell button in the desired location, then plug it into a power outlet to complete the installation. Wide application: The self-powered wireless waterproof doorbell can be used in homes, warehouses, offices, garages, shops, apartments, hotels, villas, gardens, hospitals, schools and other places.