stereo headset Popular stereo headset, headphone, earphone Retractable earphone with competitive price and high quality OEM stereo headsetRetractable earphone/earbudsFrequency response: 20Hz to 20kHz Speaker size: 10mm ... earphones socket.Compatible with popular MP3 players, such as Apple iPod, Creative MP3, Microsoft Zune, SanDisk MP3, iRiver MP3, etc. Popular stereo headset