Rocketfish In Ear Earbud Headphones Purple What's Included * Rocketfish Earbud Headphones * Small, medium and large earbud tips Earbud design Directs sound into the ear for deep bass and extended frequency response. Neodymium magnet For sound reinforcement. 10mm drivers provide a deep, rich bass sound. # 20Hz - 20kHz frequency response For faithful sound reproduction. # 16 ohms impedance To efficiently conduct power. Comfortable and lightweight For extended use.