Specification:Brand:Awei ES 20TYPort: 3.5mm jack portSpeaker size: 10mmFrequency: 20Hz-20 KHzSensitivity: 90dBImpedance: 16ΩLine Length:1.2mDescription:Wired in ear buds and comfortable in-ear compact design with soft silicone sweat-proof ear tips reduce outside noise.In ear earphones with mic for hands-free make you fully enjoy uninterrupted music or talk on your phone everywhere3.5mm port headphones - Ideal for electronic devices; Android smartphones; windows phones; MP3/MP4 player, iPad, iPod; other devices with 3.5 mm interface.Smooth touch feeling and lightweight earphones make it perfect to keep staying in your ears, you can use this earphone at home house-working when listening music.