Boss DB-30 Dr. Beat Metronome

With 24 beat variations and 9 rhythm patterns, the Boss DB-30 is a great solution to all your time-keeping needs.

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.


- Portable, ruggedly built, and packed with fun play-along patterns
- 24 beat variations with complex beats, and 9 rhythm patterns
- Large LCD with smooth tempo meter
- Tap-tempo feature
- 12 internal chromatic reference tones
- Convenient phones jack and auto power-off function

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!


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.

-- 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
- Dimensions (W x D x H): 2 7/16 x 3 9/16 x 13/16 in.
- Weight: 3 oz.
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 0.25 lbs
Shipping Dimensions: 5 x 4 x 1 in
Manufacturer Part Number (MPN): DB-30

For support or warranty questions, please contact the manufacturer:
Phone: 323-890-3700

Reviewers gave this product an overall rating of 5 out of 5 stars. (62 ratings)
Submitted January 16, 2015 by Allen F in Wakefield, MA
"Easy to use"
Overall: 5 out of 5 stars
(see rating details)
Verified Customer zZounds has verified that this reviewer made a purchase from us.
Like the other reviews say, this only takes a few minutes to figure out, I didn't need to read the instructions. I plan on using this to try to learn to play in odd meter, as well as get my basic timing working well. For odd meter, you set the "beat" setting for "3-4" to count in 7/8 (or 7/4) time, with accents on the 1 and 4 beats, that sort of thing. Or you can set it to "4-3" if that suits you. The "rhythm" setting does quarter notes, 8th notes (two tied together - I'm still learning music, not sure what those are called), 8th rest and 8th note, triplets (I think that's what you call that), and others. If I knew the correct terminology, I could tell you what they are - hopefully you're better with music theory than I am! It also has two clave rhythms, no idea what those are yet (but I plan on looking it up after I do this review). The battery is a 3 volt CR2032, like the ones used in most motherboards in computers, and it comes with one installed, so it's ready to use right out of the box. There's also a 1/8" headphone jack, so I can plug it into my bass practice amp (haven't tried that yet). This is my first metronome, so I have nothing to compare it to, but I think it's all I'll ever need. I got this based on the reviews, and that was a good move!
Musical Background:
Bass guitar, jam at home and practing arpeggios, scales, etc, starting to try learning to read
Musical Style:
Rock, very basic Jazz (practice exercises, mainly)
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