wireless doorchime (433MHz) • 1 chime • bell push watterproof IP44 • operating distance 60m (in built-up space falling on fifth) • self-learning pairing function • inside memory for already paired pushbuttons in case of doorbell power down • possible to pair additional pushbuttons P5723T (max. 8) • optical signalling chime on button • power: • - bell push 1× 12V (A23) (included) • - chime unit 230V AC 50 Hz supply • Packaging: 1pc, blister