Features Wired earbuds that are presented in a convenient pocket-size plastic carry case Specifications Name Description Sound Output 2mW (per earbud) Driver Sensitivity 108 +/-3dB at 1KHz,5mW Dynamic Frequency Response Range 20Hz-20K Hz Impedance (ohms) 32Ω +/- 5% Sound Pressure Level (dB) 108 +/- 3dB Wire Length 120cm Country Of Origin China Colours White, Blue, Black Dimensions Dia 55mm x H 20mm. Materials Component Material Cable Jacket Polyvinyl Chloride (PVC) Earbuds Acrylonitrile Butadiene Styrene (ABS) Carry Case Polypropylene (PP) Wired earbuds that are presented in a convenient pocket-size plastic carry caseSound Output: 2mW (per earbud)Driver Sensitivity: 108 +/-3dB at 1KHz,5mWDynamic Frequency Response Range: 20Hz-20K HzImpedance (ohms): 32Ω +/- 5%Sound Pressure Level (dB): 108 +/- 3dBWire Length: 120cmCountry Of Origin: ChinaCable Jacket: Polyvinyl Chloride (PVC)Earbuds: Acrylonitrile Butadiene Styrene (ABS)Carry Case: Polypropylene (PP)