Awei ES - 400i with superb stereo sound quality, let you fully enjoy music.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.4) Gold-plated audio jackProvide premium, no-loss sound connection to your audio device.5) Storage bagWith storage bag, well protect your earphone from dirt, dust, and scratch.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 - 400i Color: Black,Red,Purple,Coffee,Multi-color,Silver 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: 0.108 kg Product size (L x W x H): 125 x 2.5 x 1.2 cm / 49.13 x 0.98 x 0.47 inches Package size (L x W x H): 15.5 x 8.6 x 2.6 cm / 6.09 x 3.38 x 1.02 inches Package Contents: 1 x In-ear Earphone, 2 x Pair of Earbud, 1 x Cable Clamp, 1 x Storage Bag