P189&Q193

Wireless doorbells assorted
2 designs as photo (one pair in box)
433mhz +/- 0.5mhz transmission
frequency
Receiver: AC-85V-260V power supply
Battery: 12V 23A (included)
Working distance 200M, with 45 music
Volume 4 grades adjustable
Size:11.5×7.8×7.7cm

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