There are generally two situations when Bluetooth headphones turn red:
1, one is that the red light will blink every few seconds, indicating that the Bluetooth headset is running out of power, need to charge the Bluetooth headset in time, do not wait until the automatic shutdown is completely out of power to charge, which is not good for the battery.
2, the other is the headset red light is steady on, generally when there is no power charging display, indicating the remaining power, it will turn into a blue light after full.
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Common Bluetooth headset indicator meaning:
1. If the indicator light is red, it indicates that it is being charged.
2, the indicator light is blue, indicating that the charging is complete.
3, the indicator light is off, indicating shutdown.
4, the blue and red indicators are bright, and alternately flashing, indicating that the Bluetooth headset is in the matching state.
5. The blue light of the indicator flashes at intervals, indicating that the pairing is successful.
6, in the case of normal use, the indicator light flashes red, indicating that the power is insufficient, to charge in time.
When you buy a Bluetooth headset, there will be a manual, which will explain the role of each indicator, the meaning of each brand of indicator may be different, it is recommended to carefully read the manual, the correct use of Bluetooth headphones.