Brand: Picozon Technical Specification: Loudhailer diameter: 40mm(NdFeB) Frequency range: 20 to 20.000 Hz Sensitivity: 111+/-3dB at 1kHz Distortion: <=5%THD Impedance: 16 Ohm at 1kHz Input power: 30mW(maximum) Mic: 6*5mm condenser...