Wireless mains-powered doorbell,learning system,38 Melodies,A3920
Description
General information:
| Type of current: | AC |
| Nominal voltage [V]: | 110-240 |
| Color | Black White Silver-gray |
| Sound | 32 |
| Loudness [dB] | 80-90 |
| Volume adjustment | Yes |
| Power supply(Receiver) | Plug |
| Power supply(Button) | 1*12V 23A battery(included) |
| Material | ABS |
| Working Range | 250M |
| Work Frequency | 433MHz |
| Certificate | CE RoHS |
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