![Amazon.com: Geekria Shield Headphones Case Compatible with JBL Tune 520 BT, Tune 510BT, Tune 500BT, Tune 500, T460BT Case, Replacement Hard Shell Travel Carrying Bag with Cable Storage (Blue) : Electronics Amazon.com: Geekria Shield Headphones Case Compatible with JBL Tune 520 BT, Tune 510BT, Tune 500BT, Tune 500, T460BT Case, Replacement Hard Shell Travel Carrying Bag with Cable Storage (Blue) : Electronics](https://m.media-amazon.com/images/I/71sgZYS9ICL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Geekria Shield Headphones Case Compatible with JBL Tune 520 BT, Tune 510BT, Tune 500BT, Tune 500, T460BT Case, Replacement Hard Shell Travel Carrying Bag with Cable Storage (Blue) : Electronics
![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 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](https://preview.redd.it/zkm9dihmx0b51.jpg?auto=webp&s=5a648f35d0bca46bee5fc831ffed44638080c89c)
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
![Amazon.com: JBL Tune 510BT: Wireless On-Ear Headphones with Purebass Sound - Black : Everything Else Amazon.com: JBL Tune 510BT: Wireless On-Ear Headphones with Purebass Sound - Black : Everything Else](https://m.media-amazon.com/images/I/511yc+U128L.jpg)