Description: and high quality feature: by quite a significant margin. Why? Simply put, it just sounds great. It's easy to sound good on a variety of guitars, and allation is relatively painless-in fact, most of our customers do the ins tallation themselves. Soundboard pickups always come with the usual caveat s about feedback on loud , but if that's not an issue , then you really can't do much the Mini for good acoustic pick up tone that captures the warmth and character of your guitar. style: help you improve your guitar perform Installation instruction: 1.Take the plastic film down from the back of transducer to expose the adhesive 2.Place the transducer through the sound hole to the lower part of the front body where the guitar produces the best response 3.Drill a hole from inside the body, loosen -pin jack nut, insert it to the hole and tighten the nut colour: black Material: metal+plastic size: Line length: 60cm Head length: 6cm Dimension: about 27 mm(1.06 inch) Package Contents: 2 x Pickup System Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.