其中的一个就是二轮机器人，在一段距离以外的使用者可以通过电池供电的耳机发出指令，无线遥控机器人。
One is a two-wheeled robot that can be moved forward by a user standing at a distance, who wears a battery-powered headset that transmits signals wirelessly.
使用方便简单，耳机声道输入。U SB直接供电。
It's easy to use, earphone track input, power supplied directly by USB.
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