Enjoy full listening comfort with soft snug ear buds that conform instantly to your ears the panasonic rp hje125e in ear headphones deliver a powerful sound offering an audio production large 9 mm neodymium drivers produce a wider frequency response 10 24 khz providing a full sound listening experience from base to treble 3 pairs of soft earpads includedsml driver unit 9mm max input 200mw sensitivity 97dbmw frequency response 10hz24khz cord length 11m 35mm plug