panasonic rp-hv21-w in-ear earbud heaphones with built-in clip white
select specifications drive unit mm 14.8 impedance 16 sensitivity db mw 104 max . input mw 40 frequency response hz-khz 10 - 25 cord length ft 3.6 weight w o cord oz 0.21 in-cord volume no miniplug 3.5 mm yes air plug adaptor no magnet type nd neodymium plug nickel