385 Audio Double Drive In-Ear Earbuds with Microphone (Gun Metal) (Discontinued by Manufacturer) Driver: 10mm Max. input power: 5mW Impedance: 16 Ohm plus or minus 15% Cable length: 1.2m Sensitivity: 102dB plus or minus 3dB@1kHz Plug: 3.5mm gold plated Frequency response: 20Hz-20kHz Mic Sensitivity: 40dB plus 3dB Rated Power Input: 1mWMic Impedance: 2.2