The teacher next door is complaining that he/she hears my lesson. What should I do?

/The teacher next door is complaining that he/she hears my lesson. What should I do?

Often, the volume of the classroom sound-field system is turned up too high. The volume should be at a level that is heard will by the students and not necessarily the teacher.

2018-02-07T01:28:35+00:00