ET - 3100 Clip On Tuner
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| Signal Receipt method | MIC and CLIP |
| A4 Frequency Range | 435---445Hz |
| Tuning Mode | For Guitar,Bass,Violin & Chromatic |
| Tuning Range | 0A~7C |
| Tolerance | <1cent |
| LCD Display | Color Back-light display |
| Battery | Cr2032 |
| Size | 53X80X43(mm) |
| Weight | 53g |