Smart speaker

A smart speaker for providing a sound service based on an artificial intelligence platform, while being communicatively connected to an external server, the smart speaker comprising:

• a first transceiver for connection to a wireless local area network (WLAN);
• a second transceiver for connection to a mobile communication network;
• a processor configured to:
• control communication connection to the external server through the first transceiver in indoor mode;
• and
• control communication with the external server through the second transceiver in outdoor mode,
• a housing forming the exterior of the smart speaker, and configured to accommodate the first transceiver, the second transceiver, and the processor;
• and
• a speaker configured to output sound according to a control signal received from the processor,
• wherein the housing exposes an identification module insertion port outward, the identification module insertion port being a universal subscriber identity module (USIM) chip insertion port and the processor configured to output an alarm, when the USIM chip is not inserted into the identification module insertion port,
• wherein, with the USIM chip inserted into the identification module insertion port, the processor is configured to acquire location information of the smart speaker according to the result of exchanging signals with at least one base station,
• wherein the processor is configured to determine sound to be output through the speaker based on the location information of the smart speaker,
• wherein the processor is configured to output different types of sound base the location information,
• wherein, when the processor determines that the smart speaker is located in a first place, the processor is configured to output a first frequency band,
• wherein, when the processor determines that the smart speaker is located in a second place, the processor is configured to output a second frequency band different from the first frequency band,
• wherein, in the outdoor mode, the processor is configured to provide a call function on behalf of the smartphone, when the user's USIM chip is inserted into the identification module insertion port.