TREBLAB Z2 Wireless Headphones Review

The TREBLAB Z2 have a fairly sleek and modern design. They look a lot like the similarly-priced Mixcder E9 Wireless, but with an etched white design on each ear cup. They're also available with a black logo on the earcups as opposed to white.

The TREBLAB Z2 are decently comfortable. They're lightweight and well-padded, but unfortunately, the ear cups are very shallow, and your ears will likely get pushed in by them. They clamp the head a little bit, but not enough to be exceptionally uncomfortable during most listening sessions. If you're looking for more comfortable headphones from this manufacturer, check out the TREBLAB Z7 Pro Wireless instead.

The TREBLAB Z2's controls are decent. The physical buttons are easy to use and provide a good amount of feedback, so you know when you've issued a command. The controls are on the right ear cup, and the middle button has a raised dot, so you can easily tell which button you're resting on without looking. The headphones also give you an audio cue when you reach max volume, and you get a good amount of functionality, including media/call control and volume control. When using the headphones with the included analog 1/8" cable, the ear cup controls no longer function, and all inputs are done via a single button on the in-line remote/mic. This is disappointing as the in-line remote is more difficult to use and doesn't provide track skipping or volume control.

The TREBLAB Z2 aren't the most portable as the ear cups don't fold inwards into a more compact shape. On the bright side, they can swivel to lay flat, making them more comfortable around your neck and easier to fit into luggage or bags.

The TREBLAB Z2 come with a good hard carrying case to help protect them while traveling. It should protect against scratches, drops, and light water exposure.

The TREBLAB Z2's build quality is decent. The entire headphones are made out of solid plastic, with a bit of metal enforcing the headband. While they don't look as premium and high-end as more expensive options, they don't feel especially cheap or plasticky either.

These headphones are decently stable. They clamp the head enough to keep them on during light jogs and head movements. They shouldn't move too much if you have to quickly run to catch a bus, but aren't the best option for the gym.

• TREBLAB Z2 headphones
• Hard carrying case
• 1/8" TRS audio cable
• Micro-USB charging cable
• Manuals

The TREBLAB Z2's sound profile is well-balanced and accurate, making them well-suited for a very wide range of content and genres. That said, their underemphasized bass range may be slightly disappointing to fans of bass-heavy genres, and they also lack a bit of brightness which causes some instruments to sound dark and veiled.

The TREBLAB Z2 are very consistent between various users and reseats. Most people should experience their sound reproduction very similarly, though you may have to adjust them slightly on your head to hear their treble the same way every time you use them.

The TREBLAB Z2's bass range is very accurate. While most of the range is underemphasized, it's even and flat without any major sharp dips or peaks. Unfortunately, they lack a fair amount of bass in comparison to many popular headphones, like the Sony WH-1000XM3 Wireless or the Bose QuietComfort 35 II/QC35 II Wireless 2018.

The TREBLAB Z2's mid accuracy is outstanding. Almost the entire range is even, flat, and accurate. This results in present and clear instruments and vocals that don't sound muddy, harsh, or distant.

The TREBLAB Z2's treble range is decently accurate. While half of low-treble is very accurate and even, it dips a fair amount started in the middle of low-treble, resulting in some higher frequency instruments sounding dull and lispy. High treble is also quite uneven, which may cause some sounds to be piercing and others to be very dull, though this is at high enough frequencies that it generally isn't audible to most people.

The TREBLAB Z2's peaks and dips performance is very good. Most of the ranges are fairly even, without too many sudden spikes. The peak in high-bass causes the headphones to sound a bit boomy in comparison to the underemphasized low and mid-bass ranges, though this isn't too noticeable overall. However, the large dip in mid-treble causes some frequencies to be noticeably dull and lispy, making the headphones lack a bit of brightness.

The imaging performance is sub-par. While most of the group delay is well beneath the audibility threshold, it crosses over in low-bass, resulting in a transparent treble reproduction but a loose bass range. Our L/R drivers are decently well-matched, and while their phase mismatch score is very bad, this is because the drivers are mismatched at a very low frequency that likely won't be noticeable to anyone. It's also worth noting that these results are only valid for our unit, and yours may perform differently.

The TREBLAB Z2's soundstage is disappointing. While the soundstage appears decently natural and very large, it isn't very open and sounds feel to be inside your head as opposed to in front. However, this is to be expected of closed-back headphones.

These headphones don't have any virtual soundstage features.

The TREBLAB Z2's weighted harmonic distortion performance is decent. Almost all frequencies fall within acceptable limits, resulting in a fairly clear and pure audio reproduction.

These are the settings used to test the TREBLAB Z2. Our results are only valid when used at these settings.

The TREBLAB Z2's noise isolation performance is sub-par. While these headphones have an ANC feature, it doesn't work very well and only slightly lowers low-end sounds like engine rumbles. They do a decent job at blocking out background chatter, though most of this is done passively simply by physically blocking your ears. They do a good job of isolating out higher-pitched frequencies, like the sound of a fan or AC unit, though again, this is almost entirely done passively.

The TREBLAB Z2 have a mediocre leakage performance. The leakage occupies a fair amount of the mid and treble ranges, so the sound leaking from your headphones will be full. It nears the top of the noise floor of an average office, so your coworkers will likely hear a fair amount of what you're listening to.

The TREBLAB Z2 have an integrated microphone as well as an in-line mic on the included analog cable. We only test the integrated mic, and the in-line mic may perform differently.

The recording quality of the TREBLAB Z2's integrated microphone is sub-par. When using the microphone, your voice sounds very unnatural, thin, and distorted.

The integrated microphone is middling at handling background noise. It's best suited for quiet environments, as your voice gets easily drowned out in noisy situations.

The overall battery performance is good. They last almost 20 hours off a single charge with ANC turned on, which is very good. While they're advertised as lasting up to 30 hours, this may be with ANC turned off. Unfortunately, they take over four hours to fully charge, which is a long time. On the bright side, you can use them passively with their included 1/8" audio cable.

These headphones don't have a dedicated companion app.

The Bluetooth connectivity is good. They can connect to two devices at a time, so you can easily switch between them. While their SBC latency on PC is high, they support aptX-LL for a much lower latency connection, provided the device you're connecting to supports it. While watching YouTube videos on a mobile device, they have high latency on iOS but very low latency on Android devices. It's worth noting that devices and apps tend to compensate for latency differently, so your mileage may vary.

These headphones only support a wireless connection via Bluetooth.

These headphones come with a Micro-USB cable for charging and a 1/8" TRS to TRRS analog cable for a wired connection. Because the cable is only TRS on the end that plugs into the headphones themselves, it doesn't support input from the controls on the ear cups or the integrated microphone, requiring you to use the in-line remote and mic while wired. On the bright side, both included cables are flat silicone cables, which tend to be less prone to tangles and kinks.

Thanks to the in-line mic on their wire, these headphones are fully compatible with PC or PS4 gaming when you use them wired. They're also compatible wirelessly with any Bluetooth-enabled PC, though you may experience too much lag for competitive gaming.

Thanks to the in-line mic on their wire, these headphones are fully compatible with Xbox One when you use them wired into the controller.

These headphones don’t have a base/dock.