Wireless door chime with through plug - Function of the socket is retained - Up to 100-metre range - 8 selectable melodies - Infinitely adjustable volume - Automatic learning code encoding - No overlap with other devices in the vicinity Supplied with: 1 transmitter incl. battery, 1 receiver Dimensions: transmitter 85 x 33 x 26 mm, receiver 70 x 124 x 40 mm Power supply 1x 3-V lithium (CR 2032), 230 V https://elecena.pl/product/17881997/fg-2-2-wireless-door-chime-for-sockets 2021-04-26 https://elecena.pl/product/17881997/fg-2-2-wireless-door-chime-for-sockets 2025-01-24