Description:ESQ3 headphone provides you with great sound quality, super bass. Suitable for all kinds of electronic devices with 3.5mm jack port. Powerful neodymium magnet unit design, with noise isolating hi-definition technology, you will enjoy the excellent sound. Main Features:Noise isolating hi-definition technology3.5 mm metal headphone plugSuper bass great sound, light and comfortableNote: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 : ESQ3 Color : Orange, Blue, Silver, Pink, Black Wearing type : In-Ear Function : Noise Cancelling Connectivity : Wired Connecting interface : 3.5mm Application : Portable Media Player, Mobile Phone, Computer Plug interface: Full-sized Cable length : 1.2m Driver unit: 10mm Frequency response : 12~20000Hz Package weight: 0.068 kg Product size (L x W x H) : 120 x 2.6 x 1 cm / 47.16 x 1.02 x 0.39 inches Package size (L x W x H) : 13.5 x 8 x 2.8 cm / 5.31 x 3.14 x 1.10 inches Package contents: 1 x In-ear Earphone, 1 x English / Chinese Manual, 1 x Cable Clamp, 2 x Pair of Earbud