Neewer 3.5mm Green Sport Earbud Headphone Music Earphone Headphone for Laptop PC ipod PSP Green Sport Earphone Music Earbud Headphone for PSP iPod PC suit for all audio devices with 3.5mm headphone jack Frequency response: 20Hz - 20000Hz Core length: 120mm This item is 100% Brand New. Never used. It comes with 3 Months Warranty by Seller.