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2.5mm USB charging charger cable for JBL Synchros E40BT/E50BT/J56BT Headphones USB charge - AliExpress
Yustda New USB Charging Cable PC Laptop Power Charger Cord Lead for JBL by Harman SYNCHROS E40BT Bluetooth Wireless On-Ear Headphones Headset - Walmart.com
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New USB Charger Power Cable Cord For JBL Synchros E40BT/E50BT Headphone J56BT | eBay
2.5mm Usb Charging Charger Cable For Jbl Synchros E40bt/e50bt/j56bt Headphones Usb Charge - Data Cables - AliExpress
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USB Charger Power Cable Cord For JBL Synchros E40BT E50BT J56BT S400BT Headphone | eBay