Avoid accidental starting. You should never hold a finger on the switch button or trigger while carrying a plugged-in tool.

避免意外启动。移动已接通动力源的工具时，切勿将手指放在开关按钮或触发装置上。

youdao

Before using, will input information first, preserve the memory that becomes robot in machine, information can be changed at any time, has switch button, can close or start machine.

在用之前要先输入资料，保存在机器中，成为机器人的记忆，资料可随时更改，有开关按钮，可关闭或启动机器。

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The lamp body is a switch button, even in the night also can be easy to use.

整个灯体就是一个开关按键，即使在夜里也可以方便使用。

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This protrusion (which is removeable) provides access to a multi-function button, volume controls, power switch and micro-USB port for charging.

ENGADGET

The right side houses a volume switch and a physical camera button -- these were a bit plasticky, but has a nice matte finish.

ENGADGET

"Additionally, a malfunctioning stop lamp switch may also result in intermittent operation of the push-button start feature, affect the operation of the brake-transmission shift interlock feature, preventing the shifter from being moved out of the park position and cause the Electronic Stability Control (ESC) malfunction light to illuminate, " stated NHTSA documents.

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