If you want passive isolation and a detachable cable for small ears, choose Direct Sound EX29; if you need a professional over-ear headphone with a stated 20 Hz–20,000 Hz range, choose Sennheiser. For buyers comparing the best headset for small ears, the EX29’s isolation is its clearest point of distinction, though neither product’s specifications promise a small-ear fit.
• Direct Sound EX29: Its listed passive attenuation is 36.7 dB, and its cable is detachable; the trade-off is that it is wired and its over-ear shape may not suit every wearer.
• Sennheiser HD 300 Pro: Its stated audio frequency range is 20 Hz–20,000 Hz, with a 5-centimeter dynamic driver; the trade-off is that the available product details say little about comfort or isolation performance.
• Choose the EX29 if passive sound isolation and cable flexibility matter most.
• Choose the Sennheiser if you want an over-ear model identified for professional audio and a clearly specified frequency range.
The Direct Sound EX29 is a wired, closed-back, over-ear headphone with 40 mm dynamic drivers. Its most concrete distinction is the listed passive attenuation of 36.7 dB. That makes isolation the feature to focus on if you need headphones for a setting where reducing surrounding sound is important. Passive attenuation comes from the headphone’s physical design rather than a battery-powered noise-canceling system; the data does not list active noise cancellation.
The detachable cable is a practical advantage if you value being able to disconnect it rather than leave it attached when storing or moving the headphones. Direct Sound also includes an 8-foot cable extension, a 3.5 mm stereo plug, and a 6.3 mm screw-on adapter. Those connection options may be useful when your audio source is farther away or uses a larger headphone jack. The EX29 has 32-ohm impedance and a listed sensitivity of 114 dB at 1 kHz and 1 mW. Its frequency response is 20–20,000 Hz, and its HPA description indicates that the design emphasizes high-precision audio.
The EX29 is worth considering if you want wired over-ear headphones with a stated isolation figure and flexible cable connections. Its over-ear placement is not a guarantee that it will feel right on small ears: the sheet gives no ear-cup dimensions or fit guidance. Skip it if you need wireless listening or a confirmed small-ear fit.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-17 · 7 min read · Independent comparison
The Sennheiser HD 300 Pro is also an over-ear, wired headphone. It has a 5-centimeter dynamic driver, a 3.5 mm headphone jack, and a listed frequency range of 20 Hz–20,000 Hz. Those specifications give buyers a clear description of its basic audio and connection setup. Sennheiser identifies it as a professional-audio product, so it may appeal to someone looking for a straightforward over-ear headphone in that category.
Its listed impedance is 64 ohms, compared with 32 ohms for the EX29, and its stated sensitivity is 123 dB. Those figures describe electrical characteristics, but they do not by themselves tell you which headphone will sound better with your particular device. The sheet also lists a 1 ms audio-latency figure. It does not provide a passive attenuation measurement, so there is no comparable isolation number to put beside the EX29’s 36.7 dB.
The HD 300 Pro may fit someone who prefers Sennheiser’s professional-audio positioning and wants a wired over-ear model with a 3.5 mm connection. The product information lists leather as the enclosure material and includes a carrying case, but it does not specify ear-cup dimensions or comfort details. If you are searching for in ear headphones for small ears, note that this model is over-ear, not in-ear. Skip it if a documented isolation figure or a confirmed fit for small ears is essential.
• Best for a stated passive-attenuation figure → Direct Sound EX29. Its listed passive attenuation is 36.7 dB; the Sennheiser sheet does not provide a matching figure.
• Best for a detachable cable → Direct Sound EX29. Its cable detaches, and the package information also lists an 8-foot extension.
• Best for multiple listed plug options → Direct Sound EX29. The supplied connection details include a 3.5 mm plug and a 6.3 mm screw-on adapter.
• Best for a 5-centimeter dynamic driver → Sennheiser HD 300 Pro. That driver size is specified for the Sennheiser; the EX29’s driver is listed as 40 mm.
• Best for a clearly stated 20 Hz–20,000 Hz range → Either, with a specification caveat. The EX29 lists 20–20,000 Hz; the Sennheiser lists a frequency range of 20 Hz–20,000 Hz.
• Best for small ears based on the available fit details → Neither has a confirmed advantage. Both are described as over-ear, and neither sheet gives cup dimensions or small-ear fit information.
• Best for a buyer who wants the isolation data spelled out → Direct Sound EX29. Its passive attenuation is quantified, while comparable attenuation information is absent for the Sennheiser.
My Verdict
In my opinion, I would choose the Direct Sound EX29 if passive isolation and a detachable cable are my priorities. Its 36.7 dB attenuation figure gives me a concrete reason to favor it over the Sennheiser for sound isolation. For small ears, I would treat either choice cautiously because neither product’s specifications confirm a particular fit. The EX29 is my pick, but not because it is proven to be the best on ear headphones for small ears: it is an over-ear model, and fit details are limited.
Separate isolation from frequency response. The EX29 lists 36.7 dB of passive attenuation. The Sennheiser has a listed frequency range of 20 Hz–20,000 Hz, but that is not an isolation specification. These figures describe different things, so a buyer should not treat one as a direct substitute for the other. If blocking outside sound is the deciding factor, the EX29 has the more relevant documented detail.
Consider how you will connect them. Both products are wired and list a 3.5 mm jack. The EX29 adds a detachable cable, an 8-foot extension, and a 6.3 mm screw-on adapter. Those details make its connection setup more explicit. The Sennheiser’s provided information does not describe a detachable cable or an adapter, so do not assume those features are included.
Read electrical specifications in context. The EX29 lists 32-ohm impedance and 114 dB sensitivity at 1 kHz and 1 mW. The Sennheiser lists 64-ohm impedance and 123 dB sensitivity. These numbers can help describe headphone behavior, but they do not establish a simple winner for sound quality or compatibility without knowing your source and listening needs.
If cost matters, compare the current listing yourself. I can’t establish a value winner from the specifications alone. Check the current price on Amazon using the page’s price button, then weigh it against the features you would actually use. In particular, decide whether the EX29’s stated attenuation and cable accessories matter more to you than the Sennheiser’s stated driver size and professional-audio positioning.
FAQ
Neither product sheet confirms a small-ear fit, and both headphones are listed as over-ear. The EX29 has a stated passive-attenuation figure, but that does not tell you how the ear cups will fit.
Both are described as wired and list a 3.5 mm jack. The EX29’s cable is detachable, and its package information includes an extension and a 6.3 mm adapter.
Value depends on the current price and which features matter to you. Check the current price on Amazon, then compare it with the EX29’s stated attenuation and cable accessories or the Sennheiser’s listed 5-centimeter driver and frequency range.
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