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I lost the charging cable of my JLB Synchros E40BT headphone and was thinking about to make one myself. I just wondered what the pinout was. Is this the same as for the iPod Shuffle? usb cable to head phone jack .Is it possiable to make work From the audio cable I figured out three connections, but I’m not certain for the 5V line. And I don’t think the D+ and D- of the USB cable should be connected, right? tip - audio leftring 1 - audio rightring 2 - groundsleeve - 5V ???

Hi, Cable are selling for e50bt too, so i assume they have the same pinout. In my E50BT is like this in this order USB —> Cable —> Jack 1,2,3,4 Rings 1 = +5v 2= GND

@noob99 that will depend on how it is setup on the inside of your headphones. It is very conceivable that the wiring is identical to the one you listed usb cable to head phone jack .Is it possiable to make work For the $2USD I would go ahead and buy a new one from places like this That way you know that the connections are right.

How how can I charge it with out the headphone charger

Hello, The original cable is available on https://ecommerce.mysav.eu/en/jbl/59-cab… Regards,