These are some common tools used to work on this device. You might not need every tool for every procedure.
In order to determine what is wrong with your headphones, utilize this troubleshooting guide.
Background and Identification
The ATH-AD500 headphones were first available in the summer of 2004. They were the first consumer priced headphones from Audio Technica. The headphones began Audio Technica's foray into consumer priced, open-air, headphones. The AD500s were followed by the AD700 and AD900. Although this product is now discontinued, these guides will help you repair the ATH-AD500 headphones.
When trying to identify the ATH-AD500 model, look for a silver grill and black body. Also, above the grill on both sides of the device, the make and model are listed as: Air ATH- AD500.