Curly black cable. K1 Connector Earphone Diameter: 15mm Output level: 92dB; 0.05W; 0.01m (Artificial ear IEC-318) Input power: 0.1W Maximum input power: 0.2W Output impedance: 32Ω Microphone Element type: Non-directional electric condenser. Sensitivity: -58dBi Output impedance: 2KΩ