1)speaker: 15mm (membrane: 6? 2)Frequency range: 20-20KHz 3)Impedance: 32ohms +/- 10% 4)Sentivity: 103dB +/- 10% 5)Maximum power output: 30mW 6)Connector type: 3.5mm gold plated 7)Cord length: 1.0M +/- 10% cord