Specifications:
1) Power source: DC 12V
2) Operating temperature: -10 ~ +50°C
3) Power consumption: 0.5W
4) Chime: ding dong chime
5) Communication: dual-way
6) Installation: wall-mount
7) Dimensions (L x W x H): 205 x 120 x 41mm
8) Weight: 0.25Kg
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