Hello. I have been using the Shure SE115 Sound Isolating Earphone with the iPod Touch 3G. Could you please recommend an extension cord which allows me to remotely: switch on/off the device, change the volume, operate the device vice Voice Control, make recordings, talk to my friends via Skype, etc while having the device in my backpack? It would be good if the microphone on the extension cord is of high quality to allow clear recordings and voice communications. Thanks.