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Amazon.com: Ancable USB to 2.5mm Male, Headphone Charger Cable for JBL Synchros E30 E40BT E45BT E50BT EB40 S400BT S400 S500 S700 J56BT Wireless Headphones Replacement Charging Cable : Electronics
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2.5mm Usb Charging Charger Cable For Jbl Synchros E40bt/e50bt/j56bt Headphones Usb Charge - Data Cables - AliExpress
![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
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Amazon.com: USB Fast Charger Power Adapter Cable Charging Cord Compatible with JBL Wireless Bluetooth Speaker Earphone Headphone : Electronics
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