1. Panasonic ideas for life RP HV094 In Ear Headphones Frequency response 20Hz 20kHz Slick design offering clear crisp sound Headphone Features Drive Unit diam in mm 14 8 Impedance Ohm 1KHz 17 0 Sensitivity dB mW 104 0 Max Input mW 40 0 Frequency Response Hz KHz 20 20kHz Cord Length m 1 2 Weight g without cord 6 0 MiniPlug diam 3 5mm yes Plug Type Nickel Magnet Type Neodymium IR Transmitter RF Transmitter DSSS Transmitter Receiver