Wire-in-ear Electroplated Earphones, MP3 Phones and Computers are Common $ 4.26 Product information: Type of goods: in stock Type: Wired Headphone output audio source: Universal Plug diameter: 3.5mm Plug type: straight plug type Wireless earphone or not: wired earphone Sound principle: moving coil Frequency response Range: 20-20000 (Hz) Impedance: 28 () Sensitivity: 105 (dB) Distortion rate: less than 2 (%) Length of wire: 1.1 (m) Loudspeaker diameter: 10 ( mm) Earplugs/earmuffs material: environmentally friendly silicone Material of earphone cable: woven cord Weight: 15 (g) Processing method: OEM processing Add LOGO: Yes Whether to support a proxy: Not supported Supported or not: Not supported After-sales service: shop three guarantees Invoice: no invoice is provided Packing list: None Color: red, gold, green, blue, silver gray