Plug-in-Wireless-Türgong, AC Türklingel

Plug-in wireless door chime, this door bell remote doorbell with flashing light No wire required, easy to install Transmission rang: 80meters. 2 Sounds: Dingdong,Westminster 12 different chord melodies or 16 melodies for option. Frequency: 433MHz, 315MHz Current consumption while not working <0.40mA With CE, R&TTE and RoHS approvalsTechnical spec. Power supply Receiver: 230VAC, 50Hz. Transmitter: 12V(23A type battery) Range: 80m(open air) Frequency: 433.92MHz Weight(w/o battery) Receiver: 120g Transmitter: 25g