Product Name: 3.5mm in Ear Earphone Headset with Microphone Bass Sub Woofer Volume Control for Universal PC PSP MP3 Cell Phone Jack Type: Plug-in Jack Diameter: 3.5mm Function: Noise-Cancelling, HiFi Usage: DJ, Portable Media Player, Computer, Mobile Phone Communication: Wired Type: Electret Earphone Color: Silver Wire Material: Plastic Trademark: OEM Origin: China Product Description In-ear earphone, headset, headphone, with volume control cable and microphone.100CM length cable.Compatible OS: iOS/Android.iOS: 5/5C/5S/6/6S/6plusAndroid:Universal Android Smart phone.Color: White.Sensitivity: 100±3dB.Impendance: 32ΩFrequency: 20Hz~2KHzEvery units passing the 2kgs pulling test.***important Notice***1)iOS version:The volume control does not works for the Android Smart phone.2)Universal version: The volume control works for both iOS & Android Smart phone.6 optional:6U Speaker iOS, 6U speaker, designed specailly for iPhone & iPad.6U Universal, 6U speaker, designed for both iPhone, iPad, Android Tablet PC and Cellphone.Copper Speaker iOS, designed specially for iPhone & iPad.Copper Speaker Universal, designed for both iPhone, iPad, Android Tablet PC & Cellphone.Original Speaker iOS, designed specially for iPhone & iPad.Original Speaker Universal, designed for both iPhone, iPad, Android Tablet PC & Cellphone.***Original Speaker is the best speaker***