Description
- Long Range Working Transmission, up to 1000ft in open air. Strong signal remote door bell for glass/metal/wood... door.
- Easy to expand 10+ extra door buttons (transmitters) or door bells (receivers). Waterproof transmitter.
- 52 ringtones alarm and four levels volume to adjust and they will keep their settings when power is removed.
- Easy to Install - no batteries required for plug in doorbell chime; Use sticky pad or anchors & screws to mount the door button (battery powered).
- 24hrs friendly customer service to make sure your 100% satisfaction, we offer refund or replacement for the unsatisfied products within 18 months of delivery; CE, FCC, RoHS certified.
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