PHONON SMB-02G vs Hidizs MP145 at a Glance
• PHONON SMB-02G’s biggest strength: an over-ear studio-monitor design with a 40 mm dynamic driver and detachable cable. Trade-off: it is wired and has no listed noise-control feature.
• Hidizs MP145’s biggest strength: a planar in-ear design with three pneumatic tuning filters offering nine sound styles. Trade-off: its in-ear fit may not suit listeners who dislike eartips or ear-canal pressure.
• Choose PHONON SMB-02G for desk-based study, over-ear comfort priorities, and a simple listening setup.
• Choose Hidizs MP145 for portable listening, a more compact in-ear format, and sound adjustment through the included filters.
The PHONON SMB-02G is a wired, over-ear studio-monitor headphone built around a 40 mm Nomex dynamic driver with a Free Edge structure. Its stated frequency range is 20 Hz to 20,000 Hz, and its impedance is 32 ohms. PHONON describes its tuning as balanced, with attention to low frequencies as well as the broader musical range. That points to a conventional headphone experience rather than a tiny earbud-style setup.
For study, the over-ear form is appealing if you plan to sit at a desk and listen for long stretches. The thick, lightweight ear pads are intended to support extended comfort, and the detachable four-core LR cable has an independent ground connection. The cable can be removed when needed, which is a practical design detail for storing or transporting the headphones.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-23 · 6 min read · Independent comparison
I’d consider the SMB-02G if you want studio-style headphones and do not need wireless operation or built-in noise control. One unusual option is its interchangeable ear plates, sold separately, which allow a change between closed-dynamic and semi-open designs. That flexibility may be useful if you want to alter the headphone’s construction, but it is not included as a ready-made sound adjustment system. If you specifically want compact open ear earbuds for study, this is the wrong shape: it is an over-ear headphone, not an earbud.
The Hidizs MP145 is a wired in-ear monitor with a 14.5 mm planar magnetic driver and an aluminum housing. Its stated frequency range is 20 Hz to 40 kHz, and its impedance is 30 ohms. The supplied pneumatic tuning filters are designed to provide nine sound styles, giving it an adjustment feature the PHONON does not list. If you enjoy shaping your listening rather than choosing one fixed presentation, that is the MP145’s clearest practical distinction.
Its in-ear form makes it easier to carry than an over-ear headphone, and the included liquid-silicone eartips are designed for an ergonomic seal. The listing describes passive noise cancellation, which comes from the fit rather than from an active electronic system. That can be useful when studying around ordinary background sound, though the actual seal depends on how well the eartips fit your ears.
The MP145 suits someone who wants a wired, portable monitor and is comfortable wearing in-ear tips. I would skip it if you dislike having eartips in your ear canals or prefer the familiar feel of padded over-ear headphones. It is not a bone-conduction model, so shoppers searching for the best bone conduction headphones for study should look at a different product category. Likewise, neither product’s listed features establish that it provides crystal clear calls; these are wired listening products, and the supplied information does not specify a microphone.
Side-by-Side: Which Should You Choose?
• Best for over-ear listening during desk study → PHONON SMB-02G. Its full over-ear design and thick, lightweight pads suit listeners who prefer headphones that sit around the ears.
• Best for a portable in-ear setup → Hidizs MP145. It is an in-ear monitor with a wired connection, rather than a full-size over-ear headphone.
• Best if you want a 40 mm dynamic driver → PHONON SMB-02G. It uses a Nomex driver with a Free Edge structure.
• Best if you want a planar magnetic driver → Hidizs MP145. Its 14.5 mm planar driver is the main design distinction.
• Best for passive isolation from a snug fit → Hidizs MP145. Its in-ear tips and listed passive noise cancellation are relevant if blocking some surrounding sound matters. Fit will vary by listener.
• Best for a simpler, fixed headphone design → PHONON SMB-02G. Its listed sound-adjustment option involves separately sold ear plates, not the MP145’s included tuning-filter approach.
• Best for shoppers seeking bone conduction or call-focused headphones → Neither. The PHONON is an over-ear wired headphone, and the Hidizs is an in-ear monitor; the available product details do not identify either as bone conduction or specify a microphone.
I’d choose the PHONON SMB-02G for study if my priority were an over-ear fit, a detachable cable, and a studio-monitor format. Its comfort-oriented pads and straightforward design make it the more natural desk companion in my opinion.
I’d pick the Hidizs MP145 instead for portable in-ear listening and the ability to switch among tuning filters. But for the study use case, my preference is the PHONON—not because it has more adjustments, but because its over-ear form better matches extended, stationary listening.
FAQ
For desk-based study, I’d lean toward the PHONON if you prefer over-ear headphones and thick, lightweight pads. Choose the Hidizs if you would rather wear in-ear monitors and value its tuning filters and passive isolation.
If clear calls are a priority, check for a microphone specification before choosing; neither should be assumed to provide crystal clear calls based on these details.
The Hidizs MP145 includes three pneumatic tuning filters intended to offer nine sound styles. The PHONON SMB-02G has interchangeable ear plates, sold separately, that allow switching between closed-dynamic and semi-open designs. Those are different kinds of adjustment, so consider whether you want tuning filters or a change in headphone construction.
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