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 :
JBL Synchros E40BT Red (E40BTRED) On-Ear Bluetooth Headphones
JBL E40BT BLACK Synchros Bluetooth Folding Stereo Headphones w/Mic iPad/4/3/2 | eBay
JBL Synchros E40BT Bluetooth On-Ear Headphones (White) E40BTWHT