In ear headphones for ipod nano 4g ipod touch 2g ipod classic 120gb 35 mm 4 pole jack stereo sound output transmission mode cable type of headphones in ear port 35mm jack phone type apple iphone type of fitting in ear transmission mode wired features in line control microphone headset compatible with ios music functions pause play volume call functions voice dialing end call answer call sound function in line volume control sound mode stereo