KORG GM-1 2-Pack - In-Ear Group Metronome with Infrared Sync (2-Pack)

KORG GM-1 2-Pack - In-Ear Group Metronome with Infrared Sync (2-Pack)

The KORG GM-1 is an ultra-compact in-ear digital metronome that fits in one ear like a headset, designed for mobile rehearsals and coordinated practice. Using infrared synchronization , multiple units share the same tempo so the whole section can practice to a common beat. This pack includes two GM-1 units , each with a tempo of 30–252 BPM , beats from 0 to 9 , 8 rhythm patterns , three volume levels and three click heights to suit your environment. A side-mounted jog switch and display make it easy to adjust the metronome without removing the device from your ear. With very low power consumption, it can run for up to 100 hours on a single CR2032 battery . The canal design with S/M/L eartips provides a secure fit and clear listening in noisy environments.

Main features

• Pack of 2 units for coordinated rehearsal in groups, marching bands, dance teams, or orchestral sections.
• Infrared synchronization between multiple GM-1s for fast and stable tempo sharing.
• Tempo range 30–252 BPM with accuracy ±0.1 .
• Beats from 0 to 9 and 8 rhythmic patterns (quarter notes, duplets, triplets —including variations with rests— and quadruplets —including variations with rests—).
• Direct control : Mode/Power , Sync/Mute , jog switch and display for tempo, beat, rhythm, volume and pitch.
• 3-level volume and 3-stage click pitch for improved intelligibility depending on the instrument and environment.
• 12mm piezoelectric speaker and S/M/L canal eartips for isolation and comfort.
• Approximate battery life of 100 h (typical continuous use); powered by CR2032 battery (3 V) .
• Ultra-compact and lightweight format : 49 × 22 × 22 mm and 9 g per unit.

Product benefits

• Solid Common Time : The entire section works on the same beat, improving accuracy, input, and consistency.
• Total mobility : in-ear with ear clip for rehearsals on the move without relying on room speakers.
• Quick Setup : Side jog and screen to adjust without removing the device.
• Low operating costs : long battery life with easily replaceable coin-cell batteries.

Use cases

• Marching bands and drum lines : synchronize bass drum, snare drum, and brass during runs and choreography.
• Dance groups : coordinate movements with a common pulse in large or open-air spaces.
• Chamber sections : Reinforce complex passages and irregular time signatures with dedicated rhythmic patterns.

Frequently Asked Questions

• How do you sync multiple units? Physically move the "source" unit close to the "replica" unit and press SYNC on the source unit; the tempo, beat, and rhythm are copied immediately.
• Is it compatible with SyncMetronome? No. The GM-1 cannot be synchronized with SyncMetronome.
• What's included in each unit? Manual, CR2032 (3 V) battery, and eartips in sizes S, M, and L.

Description for projects

In-ear metronome for groups with infrared synchronization; tempo 30–252 BPM (accuracy ±0.1); beats 0–9; 8 rhythm patterns; Mode/Power, Sync/Mute, jog and display controls; 3-level volume and 3-stage tone; 12 mm piezoelectric speaker; CR2032 power supply (3 V), approx. 100 h battery life; dimensions 49 × 22 × 22 mm; weight 9 g; includes per unit: manual, CR2032 battery and S/M/L eartips. Pack with 2 units.