To charge your Hellas headphones, simply plug the headphones into a USB power source using the micro USB cable included with your product. The USB Cable should only be used for charging your headphones. Keep in mind that if you are using a computer to charge, it must turned on to charge your headphones.
2 hours charge gives approximately 14 hours of playback at medium volume.
Please charge the battery before using the headphones for the first time.
The USB port to connect your headphones is located at the base of the right ear phone