Description:ES - 13i earphone provides you with great sound quality, super bass. Suitable for all kinds of electronic devices with 3.5mm jack port. Features:1) In-ear earbud Unique in-ear-canal design that ensures noise blockage, low song leakage, and great audio quality.2) On-cord controlAnswer or end phone call, pause or play music.3) Standard 3.5mm earphone plugFit all devices with 3.5mm jack as a music earphone.3) Flat noodle design wireNever worry about the wire winding.5) Gold-plated audio jackProvide premium, no-loss sound connection to your audio device.Note: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: ES - 13i Color: Black,Blue,Red,Rose Wearing type: In-Ear Function: Answering Phone,Microphone Connectivity : Wired Connecting interface: 3.5mm Application: Computer,Mobile phone,Portable Media Player Plug Type: L-Bend Driver unit: 10mm Frequency response: 20~20KHz Sensitivity: 108dB Package weight: 0.072 kg Product size (L x W x H): 120.00 x 1.80 x 1.00 cm / 47.24 x 0.71 x 0.39 inches Package size (L x W x H): 17.00 x 7.00 x 3.00 cm / 6.69 x 2.76 x 1.18 inches Package Contents: 1 x In-ear Earphone, 2 x Pair of Earbud, 1 x Cable Clamp