In ear headphones series jvc ha en jvc gumy sport type of fitting in ear transmission mode wired features gold plated jacks headset compatible with android blackberry ios music functions pause play call functions answer call end call sound mode stereo button position on cable frequency response 20 20000 hz max power handling 200 mw driver 11 mm number of drivers 1 magnet type neodymium length of cable 1 m type of cable double sided jack