I don't know or I'm not familiar with the "electronic ear bud"But anything placed inside your ear canal for any length of time is not healthy, according to the retired flight surgeon that did my medical records review for the Non-Commissioned Officers Association prior to my Veterans Administration retirement exam for disability.
The VA doctors also agreed that it does damage and many air traffic controllers develop tinnitus over the years of wearing an ear piece that fits inside the ear.
A regular stopper fits inside the ear canal, so if I were you I'd buy some bulky over the ears cups, commonly called mickey mouse hearing protection.