Features:
100% brand new and testing is fine
Suitable for TL Acoustic Guitar and Classical Guitar.
V/T/B Button With Bass Voulme Tone Control
1*6F22 9V Battery, Not included
6.35 Audio head output, directly connected to speakers
Easy to install and use.

Notes:
Guitar side is very important for the timbre.This Preamp is great value for your guitar because you just needto make one hole on the bottom side for the output jack.

Package Include:
1 Set 3-Band Guitar Piezo Pickup Preamp System Kit