3.5Mm In-Ear Stereo Black Ball-Head Shape Headset with On-Off & Mic For Samsung Galaxy S Gt-I9100 Galaxy S 2 / Sch-I500 Fascinate / Mesmerize Includes integrated earpieces and microphone.Compatible with:HTC EVO 3D/HD7S;T-mobile G2x/LG G2x/P920 Optimus 3D/Thrill 4G;Sony Ericsson Xperia Play;Barnes&Noble Nook/Nook Color / Samsung?Infuse 4G/HTC Droid Incredible 2/Incredible S/HTC MyTouch 4G Slide/Huawei Ascend II M865/Motorola Photon 4G / Blackberry Bold 9900/9930/Torch 9810/Torch 9850/9860 Fits comfortable in your pocket, purse or backpack. Color: Black.EarBud Shape: Ball-head. Cord Length: 56 inches (1.42 meters). Impedance: 32 OHM. Maximum Power Input: 5 Mw. Sensitivity: 115db (front), 102db (back). Frequency Response: 20 Hz to 20KHz. Connector: 3.5mm diameter stereo plug. Accessory ONLY. Compatible With Samsung?Galaxy Indulge R910/Factor M260/Profile R580/Strive A687/Contour R250/Messager 3 R570/Replenish/Galaxy Prevail/Exhibit 4G/Gravity Smart/Dart/LG Optimus One P500/Shine Touch KM555/Dlite GD570/Clout VX8370/Phoenix P505/Thrive P506/Apex US740/Motorola Droid 3/Charm MB502 Compatible With Apple? iPhone?1st Gen. 16GB / 4GB / 8GB. iPhone?3G 16GB / 8GB. iPhone?3GS 16GB / 32GB. Motorola: RAZR. Apple?iPod? iPhone? or iPad?are registered trademarks of Apple, Inc. Products are Apple?compatible and not endorsed by Apple, Inc.Samsung?Galaxy Prevail SPH-M820 / Galaxy S GT-i9100.Samsung?is a registered trademark in the United States or other countries. Samsung?does not endorse use of these products.