Headset type: In-Ear luminous earphones Horn size: 10mm Scope of application: This product is suitable, MID / Smart MP3/MP4/CD / mobile phones / radios and other related products with the output of the Audio class Interface : 3.5mm Headphone line length: 120cm Product weight: 12g Impedance: 32Ω Frequency Range: 20Hz-20000Hz