PROBLEM TO BE SOLVED: To effectively utilize resources without spoiling convenience of an operator.SOLUTION: The stethoscope 1 includes a condition agreement decision section 203, a communication control section 204 or a storage control section 205. In this case, the condition agreement decision section 203 decides that living body sounds are included in the sound conforming to a fact that a sound shown by acquired sound information satisfies specified conditions. The communication control section 204 starts the transmission process of the acquired sound information to a terminal device 60 when the inclusion of the living body sounds in the sound shown by the acquired sound information has been ascertained. The storage control section 205 starts the storage process of the acquired sound information to a storage section 40 when the inclusion of the living body sounds in the sound shown by the acquired sound information has been ascertained.COPYRIGHT: (C)2013,JPO&INPIT【課題】操作者の利便性を損なうことなく、リソースを有効活用する。【解決手段】聴診器1は、取得音情報が示す音が、所定の条件を満たすことに基づいて、当該音に生体音が含まれていると判定する条件一致判定部203と、取得音情報が示す音に生体音が含まれていると判定したときに、取得音情報の、端末装置60への送信処理を開始する通信制御部204、または記憶部40への格納処理を開始する格納制御部205と、を備える。【選択図】図1