There are several easy ways to prevent damage to your headphones, and please follow the steps below.

1. If the USB port has a cover, please always have it covered, except when charging.

2. Always be sure the USB port and connector are dry before connecting to charge.

3. Do not allow any oils, stains, sweat, or corrosive materials to contact the charging port. It will eventually damage the port.

4. Do not damage or block the USB port. For example, do not force it in if you have trouble inserting the USB connector into the port. Instead, examine the port and remove foreign substances that might be inside or blocking the port.