Ancable Replacement USB Charging Cable (3ft/1m) for jbl Synchros E40BT/E50BT/J56BT Headphones 2.5mm USB Charging Cable This cable used on the JBL headphones E40BT/E50BT/J56BT/Harman Kardon BT Premium headphones charging use Description: 100% Brand New USB To 2.5mm Jack/Plug Connect your devices to USB port Charge electronic device through the USB port of your PC, USB travel charger, and USB car charger. Replacement harman/kardon BT - PREMIUM HEADPHONES charging cable Color: black Cable Length: 1M( approx)