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A:①check if the charging case has power
②check if the earbuds are low powered
③check if the earbuds can be turned on manually
A:①check if there's big electromagnetic interference surrounded
②check if the earbuds are too far from device
③restart the phone,to prevent the problem of mobile phone signal instability
④Turn off the wifi and try again
A:①The earbuds charging time are about 1 hour
②Whence fully charged, the earbuds blue light will steady for 7s and then turn off
A:①Make sure the earbuds charging contacts are clean
②Whether the earbuds are placed in the charging case
③Whether the charging case has sufficient power
A:①Long press the right earbud for 1.5s to increase volume long press left earbud for 1.5s to decrease volume
②When you adjust the volume,most Android phone won't display the change, you need to feel the volume change yourself(There's 15 grades volume in total)
A:①Turn on the earbuds and wait until blue indicator lights flash every 0.5s the earbuds us pending for connection
②Turn on bluetooth funtion from your device and connect bluetooth named"BY-AP1"
A:①Check if the earbuds are connected to the mobile phone,and whether the media audio is selected
②check if the earbuds volume is adjusted to the mute state
③Check if there's big electromagnetic interference surrounded or if the earbuds are too far from device
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