32 channels50 meter range (open air)Traditional 'ding dong ding dong and Westminster' sound for the front door and 'ding dong' for the rear doorFerrite speakerCompact and modern design18 months battery lifeWork with any transmitter button designed by SPN TechnologyProduct specification:Operation frequency: 315/433.92MHzOperation temperature: -10 to +50 degrees COperation voltage: 3.0V DC (2XC battery)Product weight: receiver: 118 x 85 x 39mmProduct dimension: 92 grams (without battery)Sound level: 80dBNumber of tunes: 3Comply with FCC/CE/EMC requirementBlister pack
