Model: RM-510 Frequency range: 20-20000HZ Level of sensitivity: 87-3dB Mic Sensitivity: 42+-3dB Impedance: 16-15% Maximum power£º10mW With fashionable style and fabulous tone quality Trendy and stylish earphone, noise isolation with precise bass, high fidelity sound, universal 3.5mm jack This stereo headsets is suitable for all mobile devices such as iPOD, MP3 players, MP4 players, iPhone, iPAD, iPAD Mini, and mobile handsets Delivers clear, crisp sound through ergonomically-designed earbuds It has a standard 3.5mm stereo plug and 1.2m long tangle-free flexible cord, is comfortable to wear and has rich bass. the base of earphone is made of electroplated metal to give it solid sound By using this earphone you can answer the call, and control the music, and photo control (these functions have litter difference between different brand smart-phone, please refers to practical operation) Brand Remax SKU RE860EL0YQRUSNAFAMZ-257011 Model RM-520