KNA UP-1 (Kremona) Acoustic Guitar Pickup Unboxing Demo Review

My review of another acoustic guitar pickup.  This one is KNA UP-1 piezo-electric acoustic guitar pickup.  This pickup is passive thus it does not need any battery.  It is just being attached to the guitar top using a double adhesive tape or blu-tack.  Please see my video to hear the sound produced on the passive guitar pickup.