SHARPER IMAGE SHP895WHGR Premium Noise Canceling HD Earbuds with Built-in Micfor for All Devices (Green) Compatible With All Devices Including All Generations of iPhones, iPads, Android Tablets, Android Smartphones, Laptops, PCs, Macs, Amazon Fire Tablets, MP3 Players,, Kindles, Galaxy Smartphones & Tablets, And Much More! Built-in Noise Canceling Technology With Superior High-Definition Sound Quality Tangle-Proof Cable, Sleek Metallic Design, Noise-blocking Ear Tips For Secure & Comfortable Fit Built-in Microphone For Hands-Free Calling, One Click Play & Stop Music, One Click Answer & End Calls Technical Specs: Frequency Range 20-22khz, Sensitivity 97 3 dB/mW, Impedance 16 Ohm, Unit Driver 8 mm, Plug 3.5mm Stereo Connectivity Technology: Wired