X5 mobile Hands-free 3.5mm Stereo Sound Headset With Microphone & On And Off Button for all Apple and Android Devices and for most cell Phone Models and Brands - Retail Packaging- (Blue) High Fidelity Sound, Noise Isolation, In-line Microphone Control Button, Tangle-free Cable Specifications: Driver Unit: 14mm, Sensitivity: 118dB/1.25mW, Impedance: 32 ohms Cable Length: 3.9 feet, Frequency Range: 20Hz-20kHz, Rated Power: 2mw-10mw, Jack: Gold Plated 3.5mm Compatible with: Apple iPad, Apple iPad 2, Apple iPhone, Apple iPhone 3G, Apple iPhone 3Gs, Apple iPhone 4, Apple iPhone 4CDMA,Samsung Galaxy S4 S3 S2 BlackBerry By RIM, Casio, HP, HP Palm, HTC, Huawei, Kyocera, LG, Motorola, Nokia, Pantech, Samsung, Sanyo, and Sharp