Kingtoys Self-adhesive Electronic Acoustic Instrument Pickups Guitar Ukulele Mandolin Banjo Pickup Piezo Transducer Include 3-pack 27mm Piezoelectric Disk Elements+with 2.36" Endpin Jack

Feature:
Fit for most string music instruments such as guitar ,violin ,mandolin etc.
To let your acousitc instrument turn into electro-acoustic one
Connects to your instrument via 2.36" jack with 23.6" cable.
High Output - No Battery Required
Pre-wired, No Soldering Required 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 tonal response
3 Drill a hole from inside the body, loosen the end-pin jack nut, insert it to the hole and tighten the nut
Material: metal
Color: black
Dimension: about 27 mm(1.06")
Endpin Jack Length:6cm(2.36")
Wire Length:60cm(23.6")
Package Include:1 x Pickup