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Wireless Doorbell No Battery 3 Levels Adjustable 38 Tunes ABS Flame Retardant Ma
  • Model: 3505
  • Brand: Lenrit
  • Origin: Made In China
  • Category: Consumer Electronics & Lighting / Other Consumer Electronics
  • Label: No Battery , 100 Thousand Pressin , Self-learning Coding
  • Price: US $13.99 / pc
  • Min. Order: 100 pc
描述
Optional Ringtones and Adjustable Volume
Outdoor button adopts self powered technology chip, no battery required, once someone pressing the button to offer force, it can automatically change the motion energy into electricity which can make signals to ring the indoor receiver.