| 摘要 |
<p>The invention concerns a mobile device for visually displaying instructions for a sport coach comprising at least an erasable board (4a, 4b) whereon said instructions can be written and/or drawn. The inventive device is characterised in that it comprises a carriage (1) on top of which said board can be arranged flat. It may comprise several boards (4a, 4b) and means for storing said boards while each board may represent a different sport field.</p> |
