The first one of the most common reasons is that the charging box of Bose headphones is out of power, as we all know, the charging box of Bluetooth headphones is actually the same principle as the charging bank, to put it bluntly, it is a mobile power supply specifically for Bluetooth headphones to store power, when the charging box is out of power, this time put the headphones into the charging box, it will not show charging, and the headphones will naturally not charge into the electricity