This needs to be a super tight fit to work. If it is airtight, it is helping to soundproof. Like if someone is listening to headphones. If the headphones are off their head, all the sound comes out. So follow all the steps
This needs to be a super tight fit to work. If it is airtight, it is helping to soundproof. Like if someone is listening to headphones. If the headphones are off their head, all the sound comes out. So follow all the steps