Charging Power Supply Cable Cord Line for JBL Synchros E40BT E50BT Headphones | eBay
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2.5mm USB CHARGING Charger Cable For JBL Synchros E40BT/E50BT Headphones J56BT | eBay
Jbl Synchros E40bt/e50bt/j56bt Headphones Usb Charge & Audio Cable Replacement - Data Cables - AliExpress
USB Charger Cable for JBL E50BT Bluetooth Headphones | Fruugo US
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
USB Charger Power Cable Lead For JBL Synchros E40BT/E50BT Headphone J56BT | eBay
Amazon.com: USB to 2.5MM Jack Cord Replacement USB Charging Power Supply Cable Compatible with JBL Synchros S300 S300I S300a S500 S700 S400BT J56BT E40BT E30 E40 E50BT S400BT Headphones (Black/60cm) : Electronics
AliExpress
Replacement USB Charging Cable for JBL Synchros E40BT/E50BT/J56BT Headphones 2.5mm – Ancable