DULASP 300m Rang Home Intelligent LED Door Bell Chime 1 2 Button 1 2 3 Receiver

Color: Black
Receiver voltage: AC110-240V
Ring Tone:38 polyphonic ring tones for optional
Remote Range:300 meters in open area
Transmitter power: 12V23A alkaline battery(not included)
How to pair signals
Pairing method: press and hold the volume button on the receiver for about 5 seconds (the light is on) the volume button then press the button immediately the signal is successfully paired.
Package Content:
2x Outdoor transmitter
2x Indoor receiver
especially suitable for office building household factories tourism and other places a wide range of uses.