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Automatically connect back to the paired mobile phone after
booting;
(2) Over distance return.
The main ear and the mobile phone can return to a certain distance
within 5 minutes after disconnection; the main ear and the auxiliary
ear can be connected back within a certain distance within 5
minutes after being disconnected;
(3) The distance does not return.
After the main ear and the mobile phone are disconnected for more
than 5 minutes, the earphone automatically shuts down; after the
main ear and the auxiliary ear are disconnected for more than 5
minutes, the auxiliary ear automatically shuts down;
(4) The distance is disconnected.
If the main ear and the mobile phone are beyond a certain distance,
the connection will be disconnected; if the main ear and the
auxiliary ear are beyond a certain distance, the connection will be
disconnected;
(5) Back connection status.
The TWS connection state lasts for 20 seconds, and the Bluetooth
status of the mobile phone is connected for 30 seconds. If there is
no connection, the pairing state will be entered;
