PROBLEM TO BE SOLVED: To provide acoustic equipment having a practically useful biosensor function, because challenge in the use of open air-type acoustic equipment are not sufficiently considered.SOLUTION: Acoustic equipment includes an acoustic part 10 which abuts on a user's ear from the outside and which is not inserted into his/her ear, and biosensor parts 500L and 500R that are inserted into his/her ears, respectively.SELECTED DRAWING: Figure 1【課題】オープンエア型の音響機器を使用する場合の課題について十分検討がなされていない。従って、実際的に有用な生体センサ機能を備えた音響機器を提供する。【解決手段】耳に外部から当接されて、且つ耳に挿入されない音響部10と、耳の内部に挿入される生体センサ部500L、500Rとを備えた音響機器。【選択図】図1