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| Frequency Range: 31.5 Hz ~ 4 kHz |
| Sound Level: 40 ~ 130 dB |
| Resolution: 0.1 dB |
| Accuracy: ±1.5 Db |
| Auto-off function setup |
| Power Supply: one 9V battery (Included) |
| Dimension:170*58*35mm |
| Weight:approx107g |
