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Wireless USB Doorbell
Price: HK$0
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  • Battery free doorbell 
  • Working range up to 80m ( Open area ) 
  • 38 pcs music and 3 volume grade for choice
  • Lifespan of the transmitter :100,000 Times 
  • IPX7 water proof ( Transmitter )
  • Receiver : USB Plug 



  Receiver Transmitter
Power Supply DC5V Self-powered
Operating Temperature -10˚C ~ +50˚C -20˚C ~ +50˚C
Working range 80M (Open area) 80M (Open area)
RF Frequency 433MHz 433MHz
Sound Level 80dBA@3ft(1m) ---
Power Consumption 100mW ---
Water Proof --- Yes
Operating Forces --- 10N
Dimensions 78X35X18mm 79X44X33 mm
Weight 23g 55g
Ring Tone  38 polyphony ring tones ---