Bluetooth headphones are better when the power is used up before charging.
1, the first charge, you must use up the power in the headset and then charge, and not intermittent charge, must be full until.
2, in other cases, you can wait until the Bluetooth headset is running out of power, or until the Bluetooth headset reminds you to charge. When the Bluetooth headset is running out of power, the Bluetooth headset indicator will flash a red light every few seconds, and also accompanied by: ticking, sound. At this point, you can charge the Bluetooth headset. Generally, it takes 2-3 hours to charge a Bluetooth headset, and a fully charged Bluetooth will have a blue indicator on. The first charge can be done according to the instructions on the manual.