Hi Katriina i'm no expert, and i've never had earbuds in my ears so i can only tell you what i have read but apparently if you have T then you shouldn't use them, even at a low level, i don't know why but i have read that from time to time ... someone else on here will have more knowledge about it, but i wouldn't use them at the moment until you have had the all clear by someone who knows what they are talking about ... sorry i couldn't be more help!!!