BOSS Dr. Beat DB-30 Portable Metronome
- Odd time signature support for uneven meters
- Play-along rhythm patterns and time feels
- Visual practice assistance besides the audible beat
- Phones jack for headphone practice
- Auto power-off to spare the battery
- 1 lithium metal battery included
- 5.2 x 3.45 x 1.35 inches, 0.09 kg
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A pocket metronome that goes past a plain click with rhythm patterns, odd meters and a headphone jack. The listing leaves out the tempo range, so check it before relying on it for extreme speeds.
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ASIN: B000RVWVAYModel: DB-30Category: Metronomes
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Overview
Practicing with the Boss Dr. Beat means setting a click or a rhythm pattern and playing along, by ear or by following its visual cues. A phones jack routes the beat to headphones, and the unit shuts itself off when left idle.
Rhythm patterns and time feels turn a timekeeper into a practice partner, which helps players who drift once a bare click gets dull. Support for odd meters widens its use beyond common time. The listing never states the tempo range or how many patterns are stored, so anyone with specific needs should confirm those first.
Who it's for
Students and gigging players who carry a metronome in a case pocket get the most from it. Players who need a click locked to other gear over a cable should look at a unit with sync connections.
Pros and cons
- Pocket size travels in any case
- Rhythm patterns beyond a plain click
- Handles odd time signatures
- Headphone jack for quiet practice
- Tempo range not listed
- Headphone output is the only listed connection
- Runs on batteries that need replacing
Performance notes
Timing comes from the internal clock, while what a player follows depends on hearing the beat through headphones or the unit itself, plus the visual cue. Rhythm patterns give the ear more reference points per bar than a single click, which makes drifting easier to notice. Auto power-off governs battery life when the unit is forgotten on a music stand.
Specifications
| Brand | Boss |
|---|---|
| Model | DB-30 |
| Dimensions & fit | |
| Item weight | 0.2 pounds |
| Product dimensions | 5.2 × 3.4 × 1.3 inches |
| Power & efficiency | |
| Power saving | Auto power-off |
| Construction & materials | |
| Color | Black |
| Material | Stainless Steel |
| Included components | |
| Included Components | 1 lithium metal battery |
| Other details | |
| Practice patterns | Play-along rhythm patterns and time feels |
| Time signatures | Odd time signatures supported |
| Visual indicator | Visual practice assistance |
Frequently asked questions
Can the Boss DB-30 sync to a drum machine or recording software?
The listing names only a phones jack as a connection. No sync, MIDI or click output for other gear is listed, so treat it as a standalone practice metronome.
What does the Boss DB-30 do besides a basic click?
It plays rhythm patterns and time feels to practice along with, supports odd time signatures and offers visual practice assistance.
Does the Boss DB-30 work as a tuner?
No tuner function is listed. The bullets and specs describe a metronome only.
How rugged is the Boss Dr. Beat DB-30?
The listing calls it portable and ruggedly built. No drop or water rating is given.
What size headphone plug does the Boss DB-30 take?
The listing says only phones jack and does not give the plug size, so check before buying headphones or an adapter for it.