4 Pack Vacuum Cleaner HEPA Filters for Cyclonic Series RO3753EA RO3731EA RO3786EA M8 Commercial Wireless Door Magnet Sensor Chime Welcome Visitor Alert with 2 Transmitter + 2 Receiver - EU Plug/Black<br>•【Versatile Door Chime】The M8 Wireless Door Sensor Chime is perfect for welcoming customers and notifying staff of arrivals and departures<br>•【Customizable Melodies】Choose from 60 different music options to set the perfect tone for your business environment<br>•【Adjustable Volume】Features 5 levels of volume control,allowing you to set the ideal sound level for your space<br>•【Long-Range Connectivity】Boasts an impressive 300-meter straight-line range in open areas,ensuring reliable performance even in larger establishments<br>•【Easy Installation】Split sensor design with a compact door magnet and separate receiver for flexible and convenient setup<br>Specifications:<br>•Product Model: M8<br>•Music: 60 musics<br>•Volume: 5 levels<br>•Door magnet size:64mm*39mm*14.5mm<br>•Receiver size: 56mm*56mm*20mm<br>•Door magnet sensor battery: 12V 23A battery (included)<br>•Receiver: plug-in use (AC 100-240V)<br>•Remote control distance: 300 meters in a straight line on the<br>•open ground (data from the factory laboratory)<br>•Material: ABS<br>Package included:<br>•2 x Transmitter<br>•2 x Receiver<br>•1 x Installation Kit<br>•1 x English User Manual