This article discusses the research and special usage of a sound and light indicator of a kind of logic pulse probe.
本文介绍了一种声和光指示的瞬间电脉冲检测器的研制及其特殊用途。
A . Charge for at least 20 minutes before first use. Complete charging in 2 hours. Headset will not function when charging. Headset is charged when Light Indicator is blue.
蓝牙耳机第一次使用前不少于20分钟充电，通常充电2小时后，指示灯转为蓝色表示充电完成。
A . Charge for at least 20 minutes before first use. Complete charging in 2 hours. Headset will not function when charging. Headset is charged when Light Indicator is blue.
蓝牙耳机第一次使用前不少于20分钟充电，通常充电2小时后，指示灯转为蓝色表示充电完成。
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