Description Are you looking to improve the sound of your acoustic guitar? Then you'd better don't miss this 4 band equalizer set! This multi-functional 4 band equalizer set is equipped with volume, bass, middle, treble, brill control knobs, which will enable you to spend less time adjusting the controls and more time playing. It is really a great guitar amplifier and pickup gear for all acoustic guitar players! Feature - 4 bands of equalization. With brill, treble, middle, bass, volume control knobs and tuner power on/off button, enabling you to spend less time adjusting the controls. - Preamp pick-up system, offers better sonic clarity and great tone range for your acoustic guitar. The perfect embodiment of the acoustic guitar. - Pre-wired for easy assembly. Includes all the accessories required such as piezo pickup wire, mounting screws, sticky plate, can be easily fitted into your acoustic guitar. - With low battery automatic LED indicator, reminds you of the low battery in time so to replace it with a new one. - Great guitar amplifier and pickup gear which enables you to spend less time adjusting the controls and more time playing. Specifications - Color: Black - Size: 8.6 x 4.4 x 3.3 cm - Material: Plastic - Bass: +-12 dB at 60HZ - Middle: +-12 dB at 500HZ - Treble: +-12 dB at 3KHZ - Brill: +-12 dB at 10KHZ - Features: LCD TUNER System - Battery: 9V Alkaline battery (Not included)