When the Bluetooth headset is fully charged, the indicator light will glow straight blue or red, which varies depending on the brand.
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Generally speaking, the Bluetooth headset from zero to full charge time takes about two hours, when the Bluetooth headset battery is insufficient will be a drop alarm, about 10 seconds once, during the flashing red light.
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In general, a fully charged Bluetooth headset can talk for 7 to 8 hours continuously, and standby time is up to 9 to 10 days. If the Bluetooth headset is charging, the Bluetooth headset will always be bright red light and the Bluetooth charging bin will flash red light when charging, and it will always be bright red light when fully charged. When charging the Bluetooth headset, be sure to choose the original Bluetooth headset charging bin, because the Bluetooth charging bin used by different models of Bluetooth headphones is also different, mixed together not only hurts the Bluetooth headset greatly, but also reduces the charging speed.
The bottom uses blue glass to guide the light, and the top uses red glass to guide the light, and the two-color effect can be displayed. Lamp patch type, on the circuit board, with light guide glass to lead out the light.