PORTABLE PIEZO PICKUP FOR NYLON STRING GUITAR. NG-1 the logical choice for musicians wanting to professionally amplify the natural sound of their nylon stringed guitars without modification. Utilizing the tension of tuned strings, the NG-1 piezo installs safely and securely on the classical or flamenco guitar tie block. NG-1 is a passive system designed to work flawlessly with your favorite acoustic amplifier or colored via your preamp of preference. 1/8" to 1/4" cable included. SPECIFICATIONS Weight 3.8g. / 0.137oz