so, I have a mouse in my kitchen. He's very cute, but reasons of hygiene/ my housemates say I can't keep him.

I bought some special plug in things, which make noises that ONLY MICE CAN HEAR - apparently it upsets them a bit but doesn't hurt them, and they go away.

I haven't seen him since I got them a couple of days ago. HOWEVER, I can hear the plug in things making contant squeaky whistly noises, and it's annoying.

Am I a mouse?