Boss DB30 – Dr. Beat

It’s portable, reliable, and fun to use — the DB-30 helps musicians take their music to higher levels by offering a set of features that defies its diminutive size. Much more than just a simple timekeeper, this pocket-sized metronome can lay down a variety of rhythm patterns and time feels to practice along with, and it has a few timekeeping tricks up its sleeve as well.

Handles time signatures up to 17 beats per measure
Rhythmic beat patterns in various styles
Headphone output with volume control

Choose Your Pattern
Pick from a menu of nine rhythm types and 24 beat variations, including combinations of odd-time signatures and clave patterns for practicing Latin rhythms. Who says practice has to be painful? Put some extra spice and groove into your next practice session with the DB-30!
Extras
The DB-30 adds value with its smooth-flowing LCD needle for visual tempo assistance, and two bright LED lights that visually assist your practice. Other helpful functions include Tap Tempo for finding the right pulse fast, internal reference tones (12 semitones), Auto Power Off for optimizing battery life, and headphones jack so you won’t miss a beat, even in noisy environments.
Metronome
Tempo: 30-250 (Accuracy: ±0.1%)
BEAT: 0–9, 2+3, 3+2, 3+4, 4+3, 4+5, 5+4, 5+6, 6+5, 6+7,7+6, 7+8, 8+7, 8+9, 9+8 (24 kinds)
RHYTHM: Quarter note, Eighth rest and eighth note, Eighth note, Triple, Triple with center rest, Sixteenth note, Sixteenth note with center rest, Clave 3-2, Clave 2-3 (9 kinds)
Reference Tone
Reference Pitch: A4=438 Hz-445 Hz (1 Hz steps)
Reference Tone Range: C4 to B4 (Accuracy: ±1 cent)
Memory function
Stores the settings when the power is turned off.
Auto Power Off function
Turns unit off after 60 min.
Indicators
LCD Display, Tempo Indicator LED x 2
Connector
PHONES Jack (Stereo miniature phone type)
Power Supply
CR2032 lithium battery
Power Consumption
10 mA or less (with reference tone sounding)
Accessories
CR2032 lithium battery, Owner’s Manual
Size and Weight
Width
61 mm
2-7/16 inches
Depth
90 mm
3-9/16 inches
Height
20 mm
0-13/16 inches
Weight
0.1 kg
0 lbs. 3 oz.