Good Sound- The Acoustic Guitar Pickup comes with double sided tape and self adhesive Velcro,it is able to eliminate interfering external sounds and not be influenced by sound reflections from nearby objects, bring you the clear sound quality. | Stick Patch Design - With the stick patch transducer works by contacting with the sound source directly. it is very easy to install and you can stick it onto the instrument to minimize the damage to instrument body. | Nice Audio Jack - Randon Piezo Contact Pickup, 9.65” cable length, Jack female socket, suitable for universal cable with 6.35cm jack male plug.The audio jack can replace the end pin and install the strap. | Wide Application - The guitar pickup fits for many kinds of acoustic instruments, such as Guitar, Ukulele, Violin, Mandolin, Banjo, Kalimba, Harp etc. | Promise - 365 days expiration, 7 days unconditional return promise. If you have any questions or demanding advice on musical instruments, please feel free to contact us.