The 7HZ Timeless are sleek in-ear monitors (IEMs) with a planar magnetic transducer advertised to improve audio clarity and detail. That said, their less common driver type doesn't afford the headphones an advantage in bass reproduction compared to others that use dynamic drivers. Plus, their coin-like design, while unique, can be a bit bulky when worn. That said, you have the relatively unique option of switching the included cable to one with a 2.5 mm, 3.5 mm, or 4.5 mm terminal jack.
Our Verdict
The 7HZ Timeless aren't designed for sports and fitness uses. They don't have an IP rating, and they can be uncomfortable for some due to their large form factor relative to other IEMs. That said, they're lightweight and stable, remaining in place even if you're going for a run or pumping some iron. Still, you may prefer a wireless design, as the 7HZ's cable can pose a snagging hazard.
Stable fit.
No IP rating.
The 7HZ Timeless are mediocre for travel. They're not great for attenuating lower-frequency noise of airplane or diesel bus engines, but they'll passively mitigate chatter in the cabin of either. If you picked up the 3.5 mm jack version, they'll also be compatible with most in-flight entertainment systems. Their small form factor and included case facilitate speedy storage if you're on the move.
Includes carrying case.
Middling noise isolation.
The 7HZ Timeless are a poor option for office work. They don't isolate you from most noise, though they'll muffle coworkers' conversations a bit. They also don't come with a microphone, so you'll need to find a standalone or aftermarket solution for work calls and video meetings. They're also not the most comfortable, depending on your physical characteristics. On the upside, they work passively, so you won't need to worry about battery life throughout a long work day.
No mic.
Middling noise isolation.
The 7HZ Timeless are wired in-ears and don't have wireless functionality.
The 7HZ Timeless are mediocre for wired gaming. They don't have an integrated mic, so you'll need a standalone mic or replacement cable with an integrated solution if you want to chat with friends on Discord. Their design also isn't the most comfortable, depending on your ear shape, which can be a dealbreaker for longer sessions. That said, their analog connection means they have virtually no latency, so you'll immediately notice gunshots and audio cues in competitive shooters. Still, their stereo matching isn't the greatest and can skew important details like footsteps to the left in the stereo image. Keep in mind that stereo matching can vary from unit to unit, so you might not run into the same issues.
Stable fit.
No mic.
The 7HZ Timeless have decent audio reproduction accuracy. They have good peaks and dips performance, though their frequency response fluctuates quite a bit from their warm sound profile in the treble range. This can render sibilants and upper harmonics alternatingly dull and piercing relative to neighboring frequencies. That said, the headphones reproduce audio without audible coloration from harmonic distortion. The headphones don't perform as well in stereo matching, though; there's a left driver bias through most of the lower frequencies, which can pull instruments off center, and variability in driver mismatch in the treble range, though this likely won't be audible to most.
The 7HZ Timeless have middling noise isolation performance. Their silicone ear tips aren't the greatest at blocking out noise, particularly in the bass region, where you'll clearly hear the rumble of tour buses and airplanes flying overhead. That said, they attenuate a bit more noise in the mid and treble range, so chatty coworkers will be muffled a bit. On the upside, the headphones don't leak much audio, so neighboring coworkers won't be distracted even if you have your tunes turned up.
The 7HZ Timeless don't have an integrated mic. That said, they use a standard MMCX connector, and you can easily find an aftermarket cable with an integrated mic.
The 7HZ Timeless have very good frequency response consistency. Once you've picked out the ear tips that establish a good seal from the included options, our frequency response measurements will be indicative of your listening experience.
Performance Usages
Changelog
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Updated Mar 26, 2026:
This review has been updated to Test Bench 2.1, which removes the Group Delay test and rebalances scoring for the Harmonic Distortion test and Audio Reproduction Accuracy performance usage. For more details, consult our full changelog.
- Updated Mar 24, 2026: We've converted this review to Test Bench 2.1, which features minor updates to our sound tests.
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Updated Jul 18, 2025:
This review has been updated to Test Bench 2.0, which adds the following tests: Stereo Mismatch, Group Delay, Cumulative Spectral Decay, PRTF, Harmonic Distortion, and Electrical Aspects. In addition, we've added updated results for Isolation, including Noise Isolation - Full Range and Noise Isolation - Common Scenarios. We've added new performance usages and updated the text throughout the introduction, comparisons, and Sound tests and side-by-sides.
- Updated Jul 10, 2025: We've converted this review to Test Bench 2.0, which updates our sound tests and performance usages. You can read more about this in our changelog.
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Differences Between Sizes And Variants
The 7HZ Timeless IEM come in one color variation: 'Black.' You can also purchase them with either a 3.5 mm, 4.4 mm, or 2.5 mm cable termination. If you come across another variant, please let us know in the comments, and we'll update our review.
Popular Headphones Comparisons
The 7HZ Timeless are in-ear monitors (IEMs) with planar magnetic drivers, which is uncommon in this form factor. This design can help tighten their bass response, though quality and product tuning outweigh most driver differences in most cases. The single-dynamic driver Meze ALBA have a similar sound profile with a slightly emphasized bass over our target and is more comfortable.
Unlike other IEMs with double flange or foam ear tips like the Shure SE215 and TRUTHEAR HEXA, respectively, the 7HZ Timeless have subpar noise isolation, which can be frustrating as they won't block out much sound during a noisy live set.
Check out our recommendations for the best audiophile headphones, the best wired headphones, and the best in-ear headphones.
The MOONDROP KATO and the 7HZ Timeless have different strengths. The MOONDROP are in-ear monitors (IEMs) with a dynamic transducer that are more comfortable and have a better build quality. They also come with two pairs of nozzles made in different materials to help you customize their sound. However, the 7HZ are planar magnetic IEMs that deliver audio more consistently and come with more ear tip options.
The MOONDROP Blessing 3 are better IEMs than the 7HZ Timeless. The MOONDROP are more comfortable and better built, and their sound profile is flatter, with a more balanced treble, which some users may prefer to the 7HZ's recessed treble. However, the 7HZ comes with more varieties of ear tips.
The 7HZ Timeless are better in-ear monitors (IEMs) than the Shure SE215. The 7HZ have a planar magnetic transducer design and are more comfortable. Meanwhile, the Shure have a dynamic transducer design, are better built, and can block out more background noise as they have a double flange ear tip design.
The 7HZ Timeless and the TRUTHEAR x Crinacle ZERO are both IEMs designed for audiophiles. Depending on your preferences, you might opt for one over the other. The 7HZ feature a single planar driver that delivers extremely accurate bass and mids with a veiled treble response. By contrast, the TRUTHEAR feature a dual-driver design with an over-emphasized bass and prominent treble. The TRUTHEAR are the slightly more comfortable of the two, though, so they're a better choice for longer listening sessions.
Our How We Test Headphones article takes you behind the scenes in our lab. You'll learn how we choose and purchase products and dive into the details of our review philosophy, from testing and scoring to writing and editing.
You can also discover how we produce recommendations like this one so that you can find the best headphones (or earbuds!) for your needs.
Test Results
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