The Panasonic RP-TCM325 ErgoFit Earbud Headphones with Microphone and Call Controller are the perfect combination of style, comfort, functionality and most of all, high-quality sound. The In-line microphone on the cord of earbud headphones is used for answering calls or voice commands; Compatible USB-C devices including iPhone, Android and Blackberry. Earbuds with three sets of earpads (S/M/L included), provide a custom, comfortable ergonomic fit that won't slip out. Large 9mm drivers with neodymium magnets along with a wide frequency response and smart ergonomic fit earbuds deliver dynamic, crystal-clear sound while helping to keep out unwanted outside noise. Stereo headset tonally balanced audio with crisp highs and deep low notes, plus wider frequency response and lively sound quality for recorded audio. Long, 3. 6-ft headphone cord threads comfortably through clothing and bags making it easy to connect.