Frequency Response 5Hz to 22KHz (+/– 1.5db)
Power Source One 9V Battery
Battery Life 18000 Hours
Bright Switch
Bass Control +/- 10db Boost @ 35Hz
Treble Control +/- 10db Boost @ 6KHz
Total Harmonic Distortion 0.1% @ 1KHz
Input Impedance 1.5 MOhm
Output Impedance 25kOhm (Volume pot)
Gain: 0-12dB (internal trimmer)
