Korg MA-30 Ultra Compact Digital Metronome 

• Manufacturer  Korg
• MPN  MA-30
• Release Date  7/22/2008
• UPC  603384023124
• Highly visual liquid crystal pendulum
• 13 different rhythms are built-in so you can practice to more than a click track
• Rhythms include duplets, triplets, triplets with inner beats omitted, quadruplets, and quadruplets with inner beats omitted
• Twelve reference pitches C4 -B4 for you to tune to
• Adjustable calibration (438-445 Hz)