Bidirectional communication method, program, and wearable device

(canceled)

A non-transitory storage medium recording a program, in a system for bidirectionally communicating sounds between a first wearable device and a second wearable device, the first wearable device including a first microphone, a first storage, and a first speaker, the second wearable device including a second microphone, a second storage, and a second speaker, and the first wearable device being configured to capture, using the first microphone, a sound that is output from the second speaker or a sound arriving from a direction of a head of a wearer of the second wearable device, the program causing the first wearable device to execute procedures of:

• recording in the first storage a sound arriving from a direction of a head of a wearer of the first wearable device at a higher level than sounds arriving from other directions;
• and
• transmitting audio data of the recorded sound to the second wearable device, wherein when the first wearable device detects no sound arriving from the direction of the head of the wearer of the first wearable device, the first wearable device either does not transmit the audio data of the recorded sound to the second wearable device or transmit the audio data of the recorded sound as silent data to the second wearable device.