80M Plug-In Wireless Doorbell White

Choice of 16 melodies (button on the side) Digital coded signal to prevent outside interference Indoor use only Battery (12V 23A) supplied Power supply : Receiver 230Vac, 50Hz Battery : Transmitter 12V (23A) Frequency 433.92 MHz (±150kHz) Range 80m (Open air) Dimensions : Receiver 116 x 47 x 68mm Dimensions : Transmitter 88 x 20 x 36.5mm Weight : Receiver 129g Weight : Transmitter 25g Can be interlinked with more than 1 chime / push using the same frequency