Control Range:
Bass: +/-12dB at 60Hz
Middle: +/-12dB at 500Hz
Treble: +/-12dB at 3KHz
Presence: +/-12dB at 10KHz

With this preamp, you spend less time tweaking controls and more time playing.
Tone and volume control.
With volume, bass, middle, treble, pres control knobs.
LCD display, easy to read.
Powered by 6F22 9V battery(not Include)
Low battery check LED.
Auto and manual tuning mode.
colour:black
Material:Plastic + metal
size:9.8*5.8*4cm

Package Contents:
2 x 5 Band EQ Equalizer
2 x Piezo Line
16 x Mounting screws
2 x Microphone
2 x Battery box