Feature:    100% brand new and high quality.    Quantity: 1    1/4inch(6.3mm)jack with 10 inch cable.    Contact microphones pick up sound by being in direct contact with the sound source    Be able to eliminate interfering external sounds and not be influenced by sound reflections from nearby objects    Fit For Guitar，Mandolin，Nanjo，Violin，Ukulele，Viola，Cello ，OUD etcDescription:    They can be mounted on virtually any acoustic instrument including Guitars，violins，pianos，horns，harmonicas and can even be placed on your neck to pick up your voice.    Just plug it into your amp，bass amp or other recording equipment.    You can amplify your guitar，mandolin，banjo，violin，ukulele，viola，cello，and just about anything else you can think of.Package Content:    1 x Piezo Contact Microphone    1 x Double Sided Tape    1 x Clip    1 x Cable    2 x Adapter (NO Retail Box. Packed Safely in Bubble Bag)