Computer Gaming Gift Sets Headset Mouse Keyboard Combos

Earphone specifications speaker diameter: 50mmImpedance: 20ohm±15%Sensitivity: 117dB±3dBFrequency: 20-20000HzMicrophone size: 6.0 * 2.7mmMicrophone sensitivity: -36dB +/- 1dBMicrophone impedance: 2.2kohmDirectionality: Omni-directionalLED working voltage: DC5V +/- 5%Operating current: 100mA or lessHeadphone connector: 3.5mmCable length: about 1.2mKeyboard specifications: number of keys 104Switch type: membrane keysKey life:8 millionOperation stroke:4+/-0.5Operating load:55±7gfCable length:1.45±0.3mKeyboard size: 446*140*31.3mm±0.1Keyboard weight:491.5±10gOperating voltage:5V±0.5VOperating current: