In ear headphones earhook headphones series jvc ha ebr type of fitting in ear transmission mode wired features gold plated jacks headset compatible with android ios music functions pause play call functions answer call end call sound function bass boost sound mode stereo button position on cable frequency response 16 20000 hz driver 135 mm number of drivers 1 magnet type neodymium length of cable 12 m type of cable double sided jack 35