The specific analysis of why the red light has been flashing when the Cool shark Bluetooth headset is charging is as follows:
1. The flash battery is extremely low, you can wait half to see if it still flashes red, if it still flashes, it indicates that the charging bin has a fault, try to take out the headset, and then put it in again to charge, or check whether the data cable and interface are not well connected, the charger, the battery is faulty, you can detect or replace it, if you do not put the headset, the battery bin still flashes red when charging, It's a broken battery in the battery compartment.
2. Bluetooth charging compartment to check the charging situation: each Bluetooth headset has a flash, under normal circumstances, when the power is sufficient, flash blue; It flashes red when it is almost out of power, reports the alarm every ten seconds and makes a dripping sound. The fully charged Bluetooth headset can talk continuously for 7 or 8 hours and stand by for 9 or 10 days. When the Bluetooth headset is fully charged, it will show a red light and stay on. Some Bluetooth headsets display a green light when fully charged.
The red light flashing is a normal phenomenon, which means that the Bluetooth headset is in the state of charging. If the green light is on, the charging of the Bluetooth headset is complete. If there is no way to charge, it may be because the charging cable of the Bluetooth headset is in poor contact, it may also be because the Bluetooth headset is not charged with the original charger, and it may be because the battery is damaged and needs to be replaced, or it is not charged with the original charging box.