If it is connected to a Bluetooth headset, the distance becomes shorter, it is likely that the headset's battery loss is excessive and insufficient power, so the connection distance will become shorter, in this case, only to replace the headset's battery.
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The short Bluetooth distance of the mobile phone indicates that the receiver of the mobile phone is not very good, and you can go to the mobile phone repair shop for repair.
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The Bluetooth distance of the mobile phone is related to the hardware of the mobile phone and cannot be changed.
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The transmission distance of Bluetooth is: the distance between mobile phone and Bluetooth headset is 6-8 meters; Transmission between mobile phones is 8-10 meters; Some Bluetooth gateways and adapters are around 100 meters. Therefore, in general, the transmission distance of Bluetooth is 1-100 meters.
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The effective Bluetooth distance varies according to the Bluetooth chip used in the headset, and the process of each brand and model is different, and the ability of Bluetooth will also be slightly different.