UiiSii GT500 High Performance Headphones In-Ear Earphones with Microphone and Super Bass, and Remote Control for Iphone and Android Devices,Mini Lightweight Stereo Headsets (Gold) Space Aluminum+ CNC Machining : Earphones with unique design which enhances the earphone precision value for 3 % for excellent appearance and sound quality. Comfortable Custom Fit: 3 sizes of eartips (S/M/L) for you to select the most comfortable way to listen music. Biological Membrane Moving Coil Technology: It delivers sound softer, bass performance better under same cavity space. Gold-plated 3.5mm Plug Pin: Optimized for most 3.5mm jack devices for premium, perfect sound connection, ensure music transmits perfectly. Built-in Microphone and Multifunctional Remote Control: One Click:Answer Calls | End Calls | Pause| Play, Double Click: Next Track, Three Press: Previous Track