Maxell 190317 Lightweight Headphones with Flexible Cord Stereo Head Buds Snug Fit Ideal for CD, DVD, MP3, iPod Stereo line head buds ideal for portable CD, DVD, MP3, and iPod players Lightweight design for extended use; Soft touch rubber cord for greater flexibility MAXELL 190317 Stereo Headbuds. In-ear stereo headphones; For all portable stereos, boom boxes, MP3 players &amp; CD players Memory head band for snug fit; Connector Type: mini-phone stereo 3.5 mm plug Frequency Response: 20 Hz, Sensitivity: 98 dB/mW, Impedance: 32 Ohm, Diaphragm: 0.5 in, Magnet Material: neodymium Nickel-plated, 3.5mm connector; Soft-touch rubber cord; Lifetime warranty