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| Model | DX9040S | ||
| Rated Voltage | 1.5 V | 3.0 V | 5.0 V |
| Operating Voltage | 1-2 V | 2-4 V | 4-6 V |
| Sound Output at 10cm (dB) | 85 dB | 86 dB | 87 dB |
| Current consumption | 80 mA | 70 mA | 70 mA |
| Operating Temperature (℃) | -20~+70℃ | -20~+70℃ | -20~+70℃ |
| Storage Temperature (℃) | -30~+80℃ | -30~+80℃ | -30~+80℃ |
