| 摘要 |
<p>PURPOSE: A wireless presenter embedded with a USB charging device is provided to reduce usage of an unnecessary battery, thereby decreasing a waste of resources and realizing cost reduction. CONSTITUTION: A lithium-ion built-in battery is mounted on a part where a battery located in a rear part of a wireless presenter is inserted. A connector part is mounted in a lower part of the presenter. The connector part is connected to a connector pin of a mobile phone terminal. A chargeable secondary cell battery is inserted into the inside of the wireless presenter. The wireless presenter connects an embedded battery technology with an existing technology. The wireless presenter is charged while a computer or a notebook is used.</p> |
