SPK: φ40 Mylar speaker Impedance:32±15% Ohm Sensitivity:108±4dB Effective Freq.Band:20Hz-20KHz Rated input power:10mW Max.input power: 50mW MIC:φ6.0X5.0mm Sensitivity: -52±2dB at 4.5V,2.2KΩ (0dB=1V/Pa,1KHz) Directivity: Omnidirectional Effective Freq. Band: 20Hz-20KHz Max.operation voltage: 10V Standard operation voltage: 4.5V[...]

SPK: φ10 Mylar speaker Impedance: 32±15% Ohm Sensitivity: 91±3dB Effective Freq.Band: 20Hz-20KHz Rated input power: 3mW Max.input power: 5mW[...]

SPK: φ15mm Impedance: 32 Ohm ± 10% Sensitivity: 105dB ± 3dB(at 1K Hz) Effective Freq.Band: 20-20,000Hz Length of Cable: 2.3m ± 10% Plug: 3.5mm/2.5mm[...]

SPK: φ40 Mylar speaker Impedance:32±15% Ohm Sensitivity:102±4dB Effective Freq.Band:20Hz-20KHz Rated input power:10mW Max.input power: 50mW MIC:φ6.0X5.0mm Sensitivity: -52±2dB at 4.5V,2.2KΩ (0dB=1V/Pa,1KHz) Directivity: Omnidirectional Effective Freq. Band: 20Hz-20KHz Max.operation voltage: 10V Standard operation voltage: 4.5V[...]

Computer Headphone with Microphone SPK:Φ30 Mylar speaker Impedance:32+/-15% Ohm Sensitivity:98 +/-4dB Effective Freq.Band:20Hz-20KHz Rated input power:10mW Max.Input power:50mW MIC:Φ6.0*5.0mm Sensitivity:-52+/-2dB at 4.5V, 2.2KΩ (0dB=1V/Pa, 1KHz) Directivity:Omnidirectional Effective Freq.Band:20Hz-20KHz Max.Operation voltage:10V Standard operation voltage:4.5V[...]