Description:ES100i headphone provides you with great sound quality, super bass. Suitable for all kinds of electronic devices with 3.5mm jack port. It uses the most fashionable flat wire (like noodles) design. Powerful neodymium magnet unit design, with noise isolating hi-definition technology, you will enjoy the excellent sound. The headphones surface paints with piano UV and strong ultraviolet curing, it makes the color bright and fresh. Main Features:Noise isolating hi-definition technology3.5 mm metal headphone plugHeadphone line using noodles flat designSuper bass great sound, light and comfortableWith microphone, next song functionNote:This 3.5mm earphone plug is accord with CTIA standard. If you want to know the standard of your phone's 3.5mm interface, you can refer to the following address. http://en.wikipedia.org/wiki/Phone_connector_%28audio%29#TRRS_standards Brand: awei Model : ES100i Color : Silver, Black, Red, Blue Wearing type : In-Ear Function : Microphone, Answering phone Connectivity : Wired Connecting interface : 3.5mm Application : Portable Media Player, Mobile Phone, Computer Plug interface: Full-sized Cable length : 1.2m Driver unit: 8mm Frequency response : 20~20KHz Package weight: 0.106 kg Product size (L x W x H) : 120 x 2.7 x 1 cm / 47.16 x 1.06 x 0.39 inches Package size (L x W x H) : 18 x 13 x 2.5 cm / 7.07 x 5.11 x 0.98 inches Package contents: 1 x In-ear Earphone, 2 x Pair of Earbud, 1 x English / Chinese Manual, 1 x Cable Clamp