I went back to radio shack where i purchased some brand new earbuds and asked them about their performance while using them at a public terminal pc and told them about the audio issues im having and they told me that the problem is the public pc terminals because they might have viruses, malware, spyware, ect... they tried the earbuds on a new smartphone and they were working just fine and i told them that i had done the same on a new smartphone i have again with no issues. The went on to say that if it did in fact have a manufacturing then the audio issues would have been the same on the smartphones too! Should i get a second opinion from someone else regarding this matter? Did the radioshack people troubleshoot the problem accordingly and appropriately in this case?