Brand: TRI Model: Star River Color: Blue/ Green Impedance: 32Ω Sensitivity: 110dB@1KHz FR Range: 20-20Khz Driver: Dual dynamic Type: In-ear earphone Cavity material: German imported resin Interface: 0.78mm 2PIN Plug: 3.5mm/4.4mm(plated with gold) Cable material: Oxygen-free copper plated with silver Cable length: 120CM±3CM