Description:ES500i 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 microphoneWith carrying bag, more convenientNote: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: ES500i Color: Black,Red,Blue,Purple,Coffee,Multi-color Wearing type: In-Ear Function: Microphone,Answering Phone Connectivity : Wired Connecting interface: 3.5mm Application: Mobile phone,Computer,Portable Media Player Plug Type: Full-sized Driver unit: 10mm Package weight: 0.106 kg Product size (L x W x H): 120 x 2.5 x 1 cm / 47.16 x 0.98 x 0.39 inches Package size (L x W x H): 15.5 x 8.6 x 2.7 cm / 6.09 x 3.38 x 1.06 inches Package Contents: 1 x In-ear Earphone, 2 x Pair of Earbud, 1 x English / Chinese Manual, 1 x Cable Clamp, 1 x Carrying Bag