Newstar Wired Microphone 88-C39 for fun at home, out door ,school

88-C39 wired Microphone 1.Impedance: 350Ω(±30%) 2.Type: Condenser 3.Pllar pattern: cardioid 4.Frequency response: 30Hz~20KHz 5.Sensitivity: -57dB(±3dB)(odB=1mvB/Pa at 1KHz) 6.Material: plastic silver head + plastic silver body, Q4.8*3m cable,  7. Color box 8. Microphone