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Speaker size: 50mm Frequency response: 12Hz – 32KHz Sensitivity: 113+/-3dB At 1KHz1mW Impedance: 40 Ohm R&L balance< 3dB(20Hz-10KHz 1mW) Rated input power: 30mW Maximum input power: 50mW Cable Type: TPE cable Cable Length: 1.2-2m Plug: 3.5mm gold-plated