* input resistance: 320 * Rated power: 20mw * Maximum input power: 100mW * Frequency range: 20Hz to 200KHz * Rated sensitivity: 11OdB+5dB * Left and right balance: 1dB * microphone * Rated sensitivity:-38dBt2dB * Microphone impedance: RL=2.2KQ * Directionality: omnidirectional * Working voltage: 5V
