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| General | |
|---|---|
| Brand | Hechun Technology |
| Model | Electronic class sign |
| Item number | 21.5 Drawing screen |
| Type | Capacitive touch screen |
| Screen type | Capacitive |
| Resolution | 1920x1080 |
| Light transmittance | More than 85% |
| Brightness | 500 |
| Contrast | Contrast ratio :1000:1 |
| Number of clicks | 1000 |
| Sensing force | 0.1 |
| Response time | Less than 20 milliseconds |
| Purpose | Xinfa teaching attendance |
| Interface | USB |
| "Size" | 10.1 |
| Screen size | Painting screen |
| Major downstream platforms | ebay |
| Main sales regions | North America |
| It has its own authorized brand | no |
| Whether it is a cross-border export exclusive supply source | is |















