Heavy bass earbud with mic offers copper coil technology to provide increased bass response. The b-13 provides crystal clear highs and a full range of mid level sound, as well as dynamic heavy bass. Inline mic for taking/making calls. Includes soft touch eartips for extended wear. Earpiece Type: Earbud; Earpiece Material: Rubber; Microphone: Yes; Headset Features: Copper Coil Technology.