To charge the headphones plug the provided USB cable into the headphones port by opening the cover on the right side bottom and plugging in the USB cable. Plug the other end into a USB charging device such as your laptop, car adaptor, or other USB port. The light on the headphones will turn red when charging and white when charged. The light is near the back part of the neckband on the headphones. OVexec utilizes a Micro-USB charging port.
You can use your headphones while it is charging however you are limited by the cord length.