Is it necessary for universities to buy Bluetooth headsets?
How can I put it? Personally, I suggest buying it, because it is inevitable to use headphones when playing mobile phones in universities. If it is the kind with lines, it may make the teacher look uncomfortable and the students look uncomfortable. Bluetooth headset is convenient and easy to use, and it is not easy to be seen by teachers and classmates. Bluetooth headsets are quite common now, so it is recommended to buy them.