What Is a Metronome?
Updated Nov 10, 2026 · By 
Jonah Mercer · Editorial policy
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A metronome is a device that marks a tempo with a click, a bell, or a flashing light, so a player keeps time. It counts beats at a speed in beats per minute, and these metronomes cover 40 to 208 beats per minute. The digital model adds vocal counting, while the mechanical models wind up and tick without a battery.
What the numbers on the dial mean
The tempo number is the count of beats in a minute, and the dial on these metronomes runs from 40 to 208 beats per minute. A lower number means a slower beat, and a higher number means a faster one. The beat setting groups those beats: the digital model offers 10 beat patterns from 0 to 9, while the mechanical models offer 0, 2, 3, 4, and 6, with a bell marking the first beat of each group.
Set the tempo before you start
Turn the dial or press the buttons to the tempo you want, then set the beat pattern. The digital model also has a tap function, so two taps enter a tempo by ear. On a mechanical model, take out the brake, pull off the cover, adjust the beat and tempo, then wind it up and let it tick.
Use the click, the bell, or the light
A metronome marks time with sound and light. The click sounds on each beat, and the bell rings on the first beat of a group so the player hears where the group starts. The digital model adds an LED light on top that gives a visual tempo indication, and an earphone plug for practicing without the click. A mechanical model makes its beats with a wind-up mechanism, so it needs no battery.
Digital or mechanical: which to pick
A digital metronome runs on a rechargeable battery and charges from any 5V USB power source, with vocal counting, three digital sounds, and a timer that sets 15, 30, 45, or 60 minutes. A mechanical metronome winds up by hand and needs no battery, and a single full wind lasts at least 18 minutes. Both kinds cover 40 to 208 beats per minute, so the choice is between the digital extras and the wind-up design.
What you need
Sondery Digital Metronome Rechargeable Vocal Counting
A rechargeable digital metronome with vocal counting, three digital sounds, a tap function, and a timer that sets 15, 30, 45, or 60 minutes.
- Top tempo: 208 BPM
- Rechargeable
- Type: Digital
Ueteto Mechanical Metronome Black/Loud Sound Piano Drum
A wind-up mechanical metronome with an audible click and bell ring, a 40 to 208 bpm tempo range, and no battery required.
- Top tempo: 208 BPM
- Type: Mechanical
HOSEYIN Mechanical Metronome
A mechanical metronome with an adjustable 40 to 208 bpm range, 0, 2, 3, 4, and 6 beat selections with a bell, and a 1-year manufacturer warranty.
- Top tempo: 208 BPM
- Type: Mechanical
TERENCE Mechanical Metronomes for Piano Guitar Violin Bass
A mechanical metronome with a metal movement, a 40 to 208 bpm beat range, and 0, 2, 3, 4, and 6 beat selections for piano, guitar, violin, and bass.
- Top tempo: 208 BPM
- Type: Mechanical
These come from our ranked list Best Metronome, which compares them spec by spec.
Frequently asked questions
Does a mechanical metronome need batteries?
No. A mechanical metronome winds up by hand and makes its beats with a wind-up mechanism, so it needs no battery. The digital model is different: it runs on a rechargeable battery and charges from a 5V USB power source.
What tempo range do these metronomes cover?
All four cover 40 to 208 beats per minute. The digital model sets tempo with a rotary dial, and the mechanical models use the same 40 to 208 range with beat selections of 0, 2, 3, 4, and 6.
Can a metronome count the beats out loud?
The digital model has a vocal counting option, so it counts the beats in English as well as sounding clicks. It also offers three digital sounds, and an LED light on top gives a visual tempo indication.
Ranked metronomes lists
More how-to guides
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