• Frequency response: 30Hz-16KHz • Sensitivity: -44dB 3dB (0dB = 1V / Pa at 1KHz) • Output Impendence: 200Ohm • Maximum SPL: 130dB (THD1.0% at 1KHz) • Low-frequency attenuation: 80Hz 10dB / octave • Output impedance: 200 • Voltage: CR2032 3V button battery