PWOW K53 In-Ear Earbuds Earphone with Microphone Stereo Earphones Universal 3.5mm Metal Headphones for iPhone/ Samsung/ Computer &ndash; Silver Grey Accurate speaker design to deliver an extreme clarity and deep low frequency. Ergonomic design to make it more comfortable to wear. Anti-winding headphone wire with microphone and hands-free function in one. Enhanced built-in microphone and perfect high signal-to-noise ratio. Compatible with common types of smartphones.