The small earpieces singers wear onstage are called in-ear monitors (IEMs). They let performers hear a personal mix of their voice, the band, and any cues used in the show, even on a loud stage. When choosing IEMs, the practical questions are fit, isolation, connection to the monitor system, serviceability, and comfort through a full set.
Quick answer: Singers use IEMs to hear themselves and a controlled performance mix instead of relying only on loud floor monitors. The earpieces connect to a wired monitor feed or to a wireless bodypack receiver. Before buying, check the signal path, fit, isolation, replaceable parts, and listening-level controls.

What Are the Earpieces Singers Wear?
These earpieces are in-ear monitors, often shortened to IEMs. They deliver a personal monitor mix, which may include the singer’s voice, selected instruments, a click track, and production cues. The mix is chosen for the performer and may differ from what the audience hears through the main speakers.
With a typical wireless setup, the monitor mix leaves the mixing console, passes through a transmitter, and reaches a bodypack receiver worn by the singer. The IEM earphones plug into that receiver. A wired setup instead feeds the earphones through a suitable monitor output or wired bodypack. These are listening devices, not microphones or automatic pitch-correction tools. Ordinary Bluetooth earbuds are not a direct substitute for a dedicated stage-monitoring system.

Personal monitoring helps singers hear their own voice against the band, move without depending on a floor monitor’s listening position, and adjust the sound in their ears. Shure’s explanation of personal stage monitoring describes the role of monitor mixes, isolation, and onstage sound levels.
Choose the Monitoring Path Before the Earphones
| Component | Why it matters | What to verify |
|---|---|---|
| IEM earpieces | Determine fit, isolation, and personal listening comfort. | Tip or mold fit, connector, cable, serviceability. |
| Wired source | Can feed the performer directly without a radio link. | Output connector, level, mobility limits. |
| Wireless bodypack | Adds stage mobility. | Compatible monitor system, operating band, batteries, venue coordination. |
| Mixer/monitor mix | Determines what the performer hears. | Aux mix, limiter/level management, routing, engineer workflow. |
For a model-family example, see the Sony IER in-ear monitor comparison, which separates stage-oriented and hybrid designs without treating them as one ranking.
Universal vs. Custom Fit
Universal IEMs
Universal models use interchangeable tips and can be shared or replaced more easily. Fit depends on tip size and ear shape, so try several tip options before judging isolation or bass response.
Custom IEMs
Custom-fit earpieces are made for an individual ear impression or scan. They can provide a consistent personal fit, but they cost more, take longer to replace, and are not practical for sharing between performers.

Isolation Changes What You Hear
A strong acoustic seal can reduce outside stage sound and change how much monitor level you need. More isolation is not automatically better for every performance; some performers need controlled ambient cues or a mix that includes room microphones.
If a singer removes one earpiece, they may be trying to hear the room or audience, or responding to a fit or monitor-mix problem. A performance video alone cannot establish the reason. Adjusting the mix or adding suitable ambient sound to it can be more controlled than simply turning up the remaining earpiece.
Driver Count Is Not a Ranking
IEMs can use dynamic drivers, balanced armatures, planar designs, or hybrids. More drivers do not automatically mean better monitoring. Tuning, crossover design, fit, distortion, source, and personal preference matter more than counting components.
Serviceability Matters on Tour
- Check whether the cable is replaceable.
- Carry spare tips or approved cleaning supplies.
- Know the connector type before ordering a backup cable.
- Protect earpieces from moisture and impact in a case.
- Keep a backup monitoring option for critical shows.
Use Safe Monitoring Habits
Isolation can make it tempting to lose track of playback level. Set monitoring deliberately, avoid unnecessary volume, and use the venue or system's appropriate level-management practices. An IEM is not hearing protection unless it is specifically evaluated and used as such.
Live IEM FAQ
Do more IEM drivers mean better sound?
No. Driver count is one design choice. Fit, tuning, crossover design, source, and the monitor mix all affect the result.
Do IEMs need a wireless system?
No. They can be used with a wired monitor source. A wireless bodypack is useful when the performer needs stage mobility.
Are custom IEMs always better than universal IEMs?
No. Custom fit can be consistent for one user, while universal models can be easier to share, replace, and fit with different tips.
What is the earpiece that singers wear called?
It is an in-ear monitor (IEM). Singers wear these small earphones to hear a personal stage mix containing their voice, instruments, and any cues used in the performance.
Do singers hear the same audio as the audience?
Not necessarily. A singer’s monitor mix can emphasize their own voice or include click tracks and cues that are not sent to the main audience speakers.
