JBL Live 500BT Wireless vs JBL Tune 510BT Wireless Side-by-Side Headphones Comparison - RTINGS.com
I bought JBL headphones and found out they have these holes on both sides. What are they for? They're empty and kinda deep, the headphones aren't wireless so I guess it's not
JBL Live 500BT Wireless vs JBL Tune 510BT Wireless Side-by-Side Headphones Comparison - RTINGS.com