AXL PG-800 Acoustic Guitar Transducer Pickup with 1/4 Jack and 9
Connects to your instrument via suction cup style stick on piezo pickup. It features a 9 foot cable with 1/4 jack.
It is easy to use and will work on most acoustic instruments; Guitar, Mandolin, Banjo, Ukulele, etc. Basically anything with a flat enough surface that you can stick the cup to, it's about the size of a quarter.
The sound is very good, You will be impressed. Big bang for the buck.