This essential music tool is 4 gadgets in 1. Why buy a Tuner, Metronome, and Pitch Producer when you can have them all in one for the same price? This compact tool is smaller than a card pack and has many tuner options for chromatic Features - A = 430 to a = 449 calibration period for modern or music. (N. America Tunes a = 440, Europe Tunes a 441 - 442). - Wide tuning range: a0-b7 - Use of two visual aids for fast and accurate tuning: panoramic LCD display of an imitation needle meter on the large, or an LED light that changes from Yello when flat, to green to " in tune and red to indicate sharp - An excellent ear training aid for violin and other pitch-sensitive instruments: practice playing, slow scale, Exercizes and Parts in Absolutely Correct Pitch. - 8-octave Tuning Effective range for all pitch instruments - Chromatic guitar tuner features the same function, but only EADGBE Tunes and eliminates confusion for string players. - also very useful for violin or bass. Transpose mode: 4 Flat steps - Metronome Very precise features - Metronome with several programmable with Accent pitches denoting 0 (no Accent), 2, 3, 4, 5, 6, 7 Beat time. - Accented and subdivided Beat options, including 5 rhythms (Eighth Note, Eighth Note three twins, Triplet Swing, Sixteenth, dotted-eighth notes and Sixteenth patterns.) Steps - Tempo A 216 times per minute with 40 - LED light flashing and Pendulum imitation on display for two visual cues. Other Features - Digital Pitch Pipe offers reference tones: 40 reference tones from A2 # -c6 #. Perfect for ear training and matching tone. - uses 2 AAA batteries (included). Ultra-long battery life, ten times more than others. Recessed - On / off button won't accidentally turn on on your Case instrument. - Integrated support for computer use. - Tolerance of +/- 0.5 cents, uses quartz glass. - Built in microphone for acoustic. 6mm mono input jack for use with MIC Clip (not included) or electric instrument. Recessed - On / off button won't accidentally turn on on your Case instrument. - Integrated support for computer use. - Tolerance of +/- 0.5 cents, uses quartz glass. - Built in microphone for acoustic. 6mm mono input jack for use with MIC Clip (not included) or electric instrument. Recessed - On / off button won't accidentally turn on on your Case instrument. - Integrated support for computer use. - Tolerance of +/- 0.5 cents, uses quartz glass. - Built in microphone for acoustic. 6mm mono input jack for use with MIC Clip (not included) or electric instrument.