Amazon.com: Headphone Charger Cable, Ancable 6ft USB to 2.5mm Stereo Jack Male Charging Cable for JBL Synchros E30 E40BT E45BT E50BT EB40 S400BT S400 S500 S700 J56BT Bluetooth Headphones 2.5mm Male Cable :
Replace Silver Plated Audio Cable For JBL Synchros S500 S700 S300 S400BT E45BT E50BT E55BT E30 E35 E40BT E500BT C45BT Headphones|silver cable|cable for headphonesreplacement cable for headphones - AliExpress
Amazon.com: Linkidea Replacement Audio Cable with Mic Compatible with JBL E55BT E50BT E45BT E40BT E35 E30 E65BTNC 650BTNC S700, 2.5mm TRS to TRRS Aux Cord with Inline Microphone and Volume Control (5ft/1.5m) :