Speaker Specifications: Diameter 40mmSpeaker Impedance: 24ΩFrequency response: 20HZ-20KHZSensitivity: 101dB ＼ 3dBRated power: 15mWMaximum power: 30mwCable length: 2.4mPlug Diameter: 3.5mmType: headphone、 headset、 headphonesH