Loveacc&reg;s300 3.5 Mm High Quality Stereo Sound Ear Buds with Mic, for All Apple Ipads, Ipods, Iphones, Androids, Mp3 Players, and All Audio Devices Other Cellphone Smartphon(white) high-quality:Brand from LoveAcc, High Fidelity Sound, Noise Isolation, In-line Microphone Control Button, Tangle-free Cable Answer and End Calls, One Click Play/Stop Music,Stereo ear buds with microphone Speaker Size:15mm ,Frequency Range: 20-20,000Hz,Sensitivity:1163dB(at 1KHz,0.5rms),Impedance:32 Warning: One product for almost all your media players Perfectly fits 99% of the digital products on the market,small parts of Nokia mobile phone standard is not supported.