The Cling On Pickup is an AWARD-WINNING acoustic pickup with a patented ultra QUICK and EASY magnetic attachment. It is very simple to use and requires absolutely no instrument modification. PLUG and PLAY right out of the box, this portable piezo transducer system will amplify most acoustic instruments, including GUITAR, UKULELE, MANDOLIN, VIOLIN, BANJO, CAJON, STEEL PAN DRUM, HAMMER DULCIMER, KALIMBA, BOUZOUKI and many more. The patented magnetic system allows the pickup to securely attach and detach to the soundboard or a flat bridge in just a fraction of a second, while a very thin silicone pad protects the finish of your instrument. Each pickup comes with a very small and lightweight mini magnetic base that is attached DISCREETLY underneath the soundboard or bridge with sticky putty. This easy ONE-TIME non-permanent installation prepares the instrument for the pickup. Its removable, reusable and can be easily re-positioned. Additional 3-PACK magnetic bases can be purchased separately for use on multiple instruments. Once the best location on the soundboard is found, the magnetic base stays in place ready for the pickup to instantaneously dock at the same place every time. There is no more guessing where the SWEET SPOT of your instrument is. The DETACHABLE CABLE and BUILT-IN VOLUME CONTROL are valuable extra features.