Amazon.com: SCOVEE USB to 2.5mm Male AUX Audio Jack Charging Cable for JBL Synchros S300 S300I S300a S400BT J56BT E40BT E30 E40 E50BT S500 S700 Headphones Stereo Power Wire for JBL Charger
JBL Synchros S700 Headphones Review
Amazon.com: Audio Cable Replacement with in-Line Mic Remote Volume Control - Compatible with JBL Synchros S300 S300I S300a S500 S700 S400BT J56BT E40BT E30 E40 E50BT S400BT Headphone and Samsung Galaxy Android :
Gray 2.5mm audio Mic Remote Cable For JBL Synchros S700 S400BT J56BT h – Magconn