We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-18 · 7 min read · Independent comparison
If you want a wireless in-ear monitoring system for stage, studio or DJ work with imperceptible delay and the freedom to add as many listeners as you like, choose iCON Airmon Pro; if you need wired in-ear monitors you can tune by hand to your own taste, with a big multi-driver array and a swappable cable, choose CCA KZ AS24.
• iCON Airmon Pro — biggest strength: a fully wireless 2.4GHz transmitter + receiver setup running lossless 96kHz/24-bit stereo with latency rated under 2ms, and one transmitter can feed unlimited receivers.
• iCON Airmon Pro — biggest trade-off: it is a system, not just a pair of earphones. It's battery-powered (USB-C charging), so long sessions depend on keeping it charged, and it has no wired jack as a fallback.
• CCA KZ AS24 — biggest strength: 12 balanced-armature drivers per side plus a 20–40,000Hz range and eight tuning switches, so you can reshape the sound signature yourself instead of accepting one fixed tuning.
• CCA KZ AS24 — biggest trade-off: it's wired only, with a 3.5mm jack and a 2-pin detachable cable. No wireless freedom, no battery, no built-in receiver — you supply the source.
• Pick the iCON Airmon Pro if you perform, record or mix and need to move around untethered while hearing everything in real time.
• Pick the CCA KZ AS24 if you want to sit down, plug in, and dial in an exact sound for critical listening, gaming, or tracking.
The Airmon Pro is best understood as a monitoring system rather than a pair of earbuds. It ships as a rechargeable 2.4GHz transmitter plus a receiver, with the in-ear monitors included in the box. Audio is carried losslessly at 96kHz/24-bit in stereo, and the latency is rated under 2ms. In practical terms, that's the spec that matters most for anyone who has to hear themselves while they play or speak — a sub-2ms figure is fast enough that the delay stops being something you fight against.
The feature I'd point a buyer toward is the unlimited-receiver support. One transmitter can feed as many receivers as you attach. For a band where everyone wants the same monitor mix, a worship team, a podcast with several hosts, or a studio where a guest needs a feed, that's a genuinely flexible design. You're not capped at a fixed number of listeners.
On the hardware side, it's an in-ear design with plastic, silicone and engineered wood in the enclosure, 32 ohm impedance, passive noise cancellation, and USB-C charging. There's no headphone jack at all — connectivity is wireless 2.4GHz only.
One fair caveat: 2.4GHz is a shared band. The design gives you the low-latency advantage, but it's a wireless system first and foremost, so anyone who absolutely refuses to depend on a radio link should look at a wired option instead.
CCA KZ AS24: Who It's For
The KZ AS24 is the opposite philosophy: a wired, tunable, driver-dense in-ear monitor. Per side you get 12 balanced-armature drivers — the product lists 24BA total across the pair — and they sit inside a DLP 3D-printed acoustic chamber with an integrated nozzle that's designed to optimize airflow and cut distortion. The claimed frequency range is a wide 20–40,000Hz at 112dB sensitivity and 20 ohm impedance, which is an easy load for a phone, dongle, or interface to drive.
The headline feature is tuning. It uses a Main and an Auxiliary tuner, each with a 4-level switch, giving you eight switch positions to shape bass, mids, treble and ultra-high frequencies. Want a thicker low end for hip-hop or electronic? Dial it in. Want a brighter, more analytical top for classical or detail work? Move the switches. This is a set you adjust rather than a set you simply accept — and that's the real reason to choose it over a fixed-tuning IEM.
The cable is a silver-plated OFC design with reinforced 2-pin connectors and anti-breakage limit slots, and it's detachable, so you can swap it later without replacing the earphones. The shell is a rounded-tip in-ear shape built from real-ear data for long-session comfort.
Who should buy it? Musicians, singers, audio engineers, audiophiles, DJs and drummers who want a wired, customizable monitor, plus gamers and commuters who want detail and isolation without batteries. The manufacturer lists it for adults and teenagers, so it's an easy recommendation for a younger listener too.
Who should skip it? Anyone who needs to move around a stage untethered, or who wants a self-contained system with a transmitter and receiver in the box. The AS24 has no wireless technology at all — it's a 3.5mm wired set, and you bring the source. If cable management annoys you, this isn't your product.
• Best for wireless freedom → iCON Airmon Pro. A 2.4GHz transmitter and receiver with no cable at all, versus the AS24's fixed 3.5mm wired connection.
• Best for lowest monitoring delay → iCON Airmon Pro. Latency is rated under 2ms, which matters when you need to hear yourself in real time.
• Best for multi-listener setups → iCON Airmon Pro. Unlimited receivers can pair to a single transmitter — ideal for bands, teams and guest monitoring.
• Best for sound customization → CCA KZ AS24. Eight tuning switch positions across two tuners let you reshape bass, mids, treble and ultra-highs yourself.
• Best for driver count and detail → CCA KZ AS24. 12 balanced-armature drivers per side and a 20–40,000Hz range is a lot of resolution for a wired IEM.
• Best for easy amplification → CCA KZ AS24. At 20 ohm and 112dB sensitivity, it's an easy load; the Airmon Pro sits at 32 ohm and depends on its own wireless link.
• Best for cable longevity and repairability → CCA KZ AS24. The silver-plated OFC cable is detachable with reinforced 2-pin connectors, so you can swap it down the line.
• Best for charging-free use → CCA KZ AS24. It's fully wired and needs no battery; the Airmon Pro is rechargeable via USB-C and depends on charge for long sessions.
If I were buying for myself and my work involved performing, tracking or mixing while moving around, I'd take the iCON Airmon Pro. In my opinion, sub-2ms latency, lossless 96kHz/24-bit audio and unlimited receivers solve the problems that actually get in the way of monitoring — and no wired set can match that freedom. If instead I wanted one set of IEMs to plug in and shape to my taste for critical listening or gaming, I'd choose the CCA KZ AS24 for its 12 drivers per side and eight tuning positions. Two different jobs, two different answers — pick the one that matches how you listen.
FAQ
In my opinion, no — at 20 ohm impedance and 112dB sensitivity it's an easy load and should run fine from a phone, dongle or audio interface with a 3.5mm output.
Yes. A single 2.4GHz transmitter supports unlimited receivers, so multiple performers or guests can monitor the same feed.
The CCA KZ AS24 is the better match — it's wired, needs no charging, and the eight tuning switches let you emphasize bass or detail. Do check the current price on Amazon before deciding, since both are sold there.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.