Specification : - Headphone weight : about 300g - Frequency response : 20Hz - 20kHz - Moving coil type / diameter : Φ40mm - Wire : braided wire. length 2.2m - Sensitivity : 108±3dB - Maximum power : 30mW - Resistance : 32Ω ± 15% - Speaker diameter : 40mm - Headphone interface type : 3.5mm interface - Microphone resistance : ≤2.2KΩ - Current : 80mA ...