The KORG KDM series is renowned for its powerful volume and its clearly-audible tone. We are proud to announce the latest model, the KDM-3 which features a fresh new appearance. Along with an attractive look that resembles a miniature mechanical metronome, it also contains a rich variety of beat patterns and metronome sounds. It's also packed with the convenient functions that you expect from a digital unit and will support your performance in situation, regardless of genre or instrument. Features - Stylish design that’s reminiscent of a mechanical metronome. - Eight metronome sounds, including a mechanical metronome sound. - 19 beat patterns support songs of any genre. - Easy one-touch operation and an easily-readable display. - Choose from three types of tempo settings to suit your needs - Sound Out mode lets you tune while listening to a reference tone. - Timer mode is convenient for practicing the basics. - Memory Backup function and Auto Power-Off function. - Long-life design ensures worry-free performance even during extended practice sessions. KDM-3 Specifications - Metronome mode - Tempo range: 30 bpm to 252 bpm Tempo settings: PENDULUM step, FULL step, TAP tempo Beat range: 19 different kinds available (0 to 9 beats, duplets, triplets, triplet with inner beat omitted, quadruplets, quadruplets with inner beats omitted, son clave (2-3) (3-2), rumba clave (2-3) (3-2)) Tempo accuracy: +/- 0.2% - Sound-out mode - Reference Tone: C4 (261.63Hz) to B4 (493.88Hz) 1 octave Calibration range: A4=410Hz to 480Hz (unit: 1Hz) Tone accuracy: under 1cent - Main Section - Connections: Phone jack (3.5mm stereo mini jack) Speaker: Dynamic speaker（φ36mm） Power supply: Four AAA alkaline batteries Battery Life: Approx. 120 hours (120 tempo, 4 beats, mechanical metronome, maximum volume, using standard alkaline batteries) Dimensions: Dimensions (W x D x H): 60 mm x 73 mm x 113 mm / 2.36" x 2.87" x 4.45" Weight: 167g / 0.37 lbs. (including batteries) Accessories: User manual, four AAA alkaline batteries for verifying operation.