Frequency Response: 5 Hz to 50 kHz (+/– 1.5db)
Battery Type: 1 x 9V
Battery Life: 1500 Hours
Bass: + 18dB @ 40 Hz

Treble: + 18db @ 4 kHz
THD: 0.18% @ 1kHz
Input Impedance: 1.5 MOhm
Output Impedance: 1 kOhm
Gain: 0-12dB