The KitSound KS1 stereo earphones are the perfect companion for music lovers around the globe. Featuring a 3.5mm jack connection; the KS1s are compatible with most mobile handsets; iPhones; iPods and MP3 players; ensuring you can rock out to your favourite tunes when and wherever you desire. At KitSound; noise quality is essential. These compact little music companions have been designed to reduce background noise for improved listening. They boast 18Hz - 21kHzs of frequency response and 112dbs of sensitivity. Not to mention they look super slick and feel great! The KS1s feature a tangle free cord and soft earbuds for comfort and ease; and have been given a contemporary metal finish. A great solution for your listening needs. Avoid using headphones with the volume turned up for an extended period of time. Doing so can damage your hearing. It is advisable to keep the volume at a moderate level at all times. For your own safety; please do not use when driving or cycling.