SHARPER IMAGE SHP888OR Premium Sport Earbuds For Running and Exercise Activities, Built-in Mic, Compatible with All Devices, Orange Compatible With All Smartphones & Tablets, Laptops, Android, iPhones, iPads, Kindles Superior High-Definition Sound Quality With Noise-Isolating Rubber Ear Tips Answer Calls Hands-Free With In-Line Microphone Flexible, Lightweight Neckband For Stability, Tangle-Proof, Stylish Design Frequency Range 100Hz-10khz, Mic Sensitivity -422dB, Sensitivity 110 3db, Impedance 32Ohm 15%, Unit Driver 13.5mm, Plug 3.5mm Connectivity Technology: Wired