•【Versatile Door Chime】The M8 Wireless Door Sensor Chime is ideal for welcoming guests and alerting staff to entries and exits •【Customizable Melodies】Select from 60 different melodies to suit your environment •【Adjustable Volume】Offers 5 volume levels to adjust the sound to your space •【Long-Range Connectivity】Provides up to 300 meters of wireless range in open areas for reliable performance •【Easy Installation】Features a split design with compact door sensor and separate receiver for flexible placement Specifications: •Product Model: M8 •Melodies: 60 options •Volume Levels: 5 •Door Magnet Size: 64mm x 39mm x 14.5mm •Receiver Size: 56mm x 56mm x 20mm •Door Magnet Battery: 12V 23A (included) •Receiver Power: AC 100-240V plug-in •Wireless Range: Up to 300 meters in open line of sight (based on factory testing) •Material: ABS Package Included: •2 x Transmitter •2 x Receiver •1 x Installation Kit •1 x User Manual