Joway HP21 New Brand Black Earphone In-ear Headphone with Microphone for iPhone iPad iPod High Quality 1.Secure over-the-ear fit never falls out,Cord Length: 3.84 feet 2.Energetic sound with enhanced bass keeps you motivated 3,Noise isolating in-ear design helps you focus 4,Six sets of ear tips for the best fit and comfort 5:work on iOS system device for iphone 4/4s/5/5S/ipad/ipod;Notice tips: JOWAY to listen to headphones can effectively isolate external noise. This will affect you hear the voices around, if you in transportation environment maybe very dangerous. When you drive a car, using electric vehicles, bicycle riding, or when crossing the street, please do not to use headphones.