Method for establishing communication connection and related products

An audio-output apparatus, being applicable to a first earphone of wireless earphones, the wireless earphones further comprising a second earphone, the first earphone being in communication connection with a terminal, the first earphone being in communication connection with the second earphone, and the apparatus comprising a processor, a memory, a communication interface, and one or more programs stored in the memory which, when executed by the processor, are operable with the processor to:

• determine a first distance between the first earphone and the terminal;
• determine a second distance between the second earphone and the terminal;
• and
• send to the second earphone a first message for instructing the second earphone to establish a communication connection with the terminal, when the first distance is greater than or equal to a first threshold value and the second distance is less than a second threshold value;
• wherein the one or more programs stored in the memory, when executed by the processor, are further operable with the processor to:
• determine that a received signal strength indicator (RSSI) value of a signal between the terminal and the first earphone is less than or equal to a third threshold value before the first message is sent to the second earphone.

A non-transitory computer-readable storage medium configured to store computer programs for electronic data interchange (EDI) which, when executed, are operable with a computer to:

• determine a first distance between a first earphone of wireless earphones and a terminal, wherein the terminal is in communication connection with the first earphone and the first earphone is in communication connection with a second earphone of the wireless earphones;
• determine a second distance between the second earphone and the terminal;
• and
• send to the second earphone a first message for instructing the second earphone to establish a communication connection with the terminal, when the first distance is greater than or equal to a first threshold value and the second distance is less than a second threshold value;
• wherein the computer programs, when executed, are further operable with the computer to:
• determine that a received signal strength indicator (RSSI) value of a signal between the terminal and the first earphone is less than or equal to a third threshold value before the first message is sent to the second earphone.