An electronic device comprising: a first communication unit configured to establish a first communication link; a second communication unit configured to establish a second communication link and a third communication link, wherein the second communication unit consumes more power than the first communication unit; and a control unit configured to: control the first communication unit to broadcast a first advertising packet comprising an identifier of the electronic device and communication service information, control the first communication unit to receive an advertising packet response from an external electronic device located near the electronic device, wherein the external electronic device comprises another first communication unit and another second communication unit, control the second communication unit to establish the second communication link with the external electronic device, and control the first communication unit to establish the first communication link with the another first communication unit of the external electronic device, and the second communication unit to switch from the second communication link to a third communication link in response to the second communication link quality not fulfilling a predetermined level, wherein the third communication link uses a different communication mode from that of the second communication link, and wherein the first communication unit maintains the first communication link during the switching. a first communication unit configured to establish a first communication link; a second communication unit configured to establish a second communication link and a third communication link, wherein the second communication unit consumes more power than the first communication unit; and a control unit configured to: control the first communication unit to broadcast a first advertising packet comprising an identifier of the electronic device and communication service information, control the first communication unit to receive an advertising packet response from an external electronic device located near the electronic device, wherein the external electronic device comprises another first communication unit and another second communication unit, control the second communication unit to establish the second communication link with the external electronic device, and control the first communication unit to establish the first communication link with the another first communication unit of the external electronic device, and the second communication unit to switch from the second communication link to a third communication link in response to the second communication link quality not fulfilling a predetermined level, control the first communication unit to broadcast a first advertising packet comprising an identifier of the electronic device and communication service information, control the first communication unit to receive an advertising packet response from an external electronic device located near the electronic device, wherein the external electronic device comprises another first communication unit and another second communication unit, control the second communication unit to establish the second communication link with the external electronic device, and control the first communication unit to establish the first communication link with the another first communication unit of the external electronic device, and the second communication unit to switch from the second communication link to a third communication link in response to the second communication link quality not fulfilling a predetermined level, wherein the third communication link uses a different communication mode from that of the second communication link, and wherein the first communication unit maintains the first communication link during the switching.