Benefits & Features: -Three different tones: single tone chime, dual tone chime, and fading tone chime -Any combination of the three tones may be used -Includes high-low volume control -Mounts into a single gang box Specifications: -Operating voltage: 12 - 24 VDC -Sound output: 80 - 88 dB @ 12 - 24 VDC -Current draw: 70 - 180 mA @ 12 - 24 VDC -Dimensions: 4.6” x 3” x 1.5” -Color: White -Material: ABS plastic -Wiring: Positive, common, and three positive triggers