Technology: Digital · Tempo / BPM: 35 - 250 · Calibration: 440 Hz · Display: LCD · Boss Dr. Beat DB90 Metronome Practice in style with the flagship of the Dr. Beat Metronome line. The new DB-90 is loaded with quality sounds and drum patterns to make your practice sessions less mundane and more musical. There’s a Rhythm Coach function with an onboard mic, a reference-tone function for tuning, an Instrument input, MIDI input, and other handy tools to make learning fun and effective. Features: Quick rhythm customizing with note mixing function, dozens of play-along drum patterns also built in Dedicated sliders, buttons, rotary dial, and large backlit LCD for user-friendly operation 4 metronome (including human voice) sounds Reference Tone function makes it easy to verify tuning by ear Practice with the Rhythm Coach by connecting a V-Pad (optional) - rubber pads and acoustic drums can also be detected via built-in mic Direct connection with guitar and bass, plus headphone monitoring Footswitch control for hands-free play/stop, and MIDI input for sync to external sequencers Better beats, better practice The Note Mixing function allows you to instantly create a variety of beats by adjusting the levels of five different note values. Front-panel sliders, buttons, and a large rotary dial provide instant, hands-on access to edit parameters. Select four different click sounds, including a human voice-counting sound that will help you know your place in the bar. The DB-90 is also equipped with realistic PCM drum patterns, for developing your accuracy and rhythmic feel effectively. Plug into rhythm coach Expand your rhythmic horizons with Rhythm Coach. This innovative follow-along feature has four training modes to help build your accuracy, speed, and endurance. With the DB-90’s onboard microphone, you can use the Rhythm Coach functions with acoustic drums, or plug a Roland V-Pad into the trigger input. Play along, and chart your progress. Drummers can c