Usually at 20% charge. bos headphones, the battery indicator flashes amber when charging. It takes up to two hours to fully charge the headset, and when the battery is fully charged, the battery indicator lights up green.
BOSE is one of the largest loudspeaker manufacturers in the United States, headquartered in Massachusetts, the United States, is engaged in research and development engineers alone have hundreds of people, is a wholly-owned independent company. Products in the field of car audio and aerospace technology also have excellent performance. In addition to civilian products, Bose also has extensive development in the field of professional audio
Daily do not need, prompt low charge on the line. If it is not used for a long time, such as half a year, it is best to charge it before use. Also, don't use a high-power charger, headphones can't stand it.
It takes up to two hours to fully charge the headset.
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? When connected wirelessly, the fully charged headset lasts up to 20 hours.
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? When connected with an audio cable, the fully charged headphones last up to 40 hours.