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Its performance may vary depending on obstacles (people, metal, walls, etc.) or
the electromagnetic environment.
Troubleshooting:
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Change the position or location of the unit or connected device.
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Place the devices closer together to improve signal transmission.
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Close applications that you are not using to avoid slowing down the Bluetooth
transmission.
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Keeping both the M4 player and BT headset fully charged will prevent some issues
from cutting out.
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Check the specifications of the format of the audio file. The sound may skip if the
music being played has a high bit rate.
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If the problem remains, email us with your Bluetooth headphones/speaker brand
and model for further assistance or replacement/refund.