The Patented AX-3000 Contact Auto Tuner is the most unique and innovative chromatic tuner available. The removable, business card-size tuner is always at your fingertips and is now also available with a rich wood finish. The AX Tuner's highly accurate advanced digital technology allows superior performance when tuning most stringed instruments, particularly electric or acoustic guitars, banjos, mandolins, violins and bass guitars. The outstanding features of the AX Tuner are: HIGHLY ACCURATE • MOUNTS DIRECTLY ON YOUR GUITAR • InTouch™ CONTACT MICROPHONE PICKS UP YOUR INSTRUMENTS VIBRATIONS • IT'S CORDLESS! • EASY-TO-READ THREE-COLOR LEDDISPLAY • WORLD'S SMALLEST TUNER • FULL RANGE CHROMATIC SCALE • AUTOMATIC RECALIBRATION • AUTOMATIC POWER DOWN • LONGEST BATTERY LIFE • and QUARTZ ACCURACY. The Sabine AX3000 comes complete with a manufacturers Limited Two Year Warranty.