Amazon.com: JBL Tune 510BT: Wireless On-Ear Headphones with Purebass Sound - Black : Clothing, Shoes & Jewelry
JBL TUNE 215BT Black - Headphones JBL on LDLC | Holy Moley
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 Tune 510BT | Wireless on-ear headphones
JBL Tune 510BT Wireless Review - RTINGS.com
JBL Tune 510BT Headphones - The Only Review You Need to Read - Major HiFi
JBL TUNE 500BT Wireless On-Ear Bluetooth Headphones- Blue