• Versatile Door Chime: The M8 Wireless Door Sensor Chime is ideal for welcoming customers and notifying staff of arrivals and departures • Customizable Melodies: Choose from 60 different music options to suit your business environment • Adjustable Volume: Features 5 levels of volume control for optimal sound adjustment • Long-Range Connectivity: Offers up to 300 meters of wireless range in open areas for reliable performance • Easy Installation: Split sensor design with compact door magnet and separate receiver for flexible setup Specifications: • Product Model: M8 • Music: 60 options • Volume: 5 levels • Door magnet size: 64mm x 39mm x 14.5mm • Receiver size: 56mm x 56mm x 20mm • Door magnet sensor battery: 12V 23A battery (included) • Receiver: Plug-in power (AC 100-240V) • Remote control distance: Up to 300 meters in straight line on open ground (data from factory laboratory) • Material: ABS Package included: • 2 x Transmitter • 2 x Receiver • 1 x Installation Kit • 1 x English User Manual