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Trust 21665 reviews
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Compare Trust 21665 reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.
Manufacturer code21665
The product, explained
About the Trust 21665
Trust 21665 is listed in the headphones & headsets category. The recorded specifications include product type: Headset; wearing style: In-ear; connectivity technology: Wired. This entry covers manufacturer code 21665. Specifications relate to this exact source record; other editions or packages may differ.
The source lists Wired connectivity. Check the actual inputs and supported devices before choosing accessories. Connection type alone does not establish sound quality, wireless delay or compatibility with a particular service.
- Product type
- Headset
- Wearing style
- In-ear
- Connectivity technology
- Wired
- Microphone type
- Boom
- Headphone frequency
- 70 - 20000 Hz
- Weight
- 75 g
Make it work for you
Before choosing the Trust 21665
Check call-quality evidence
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Confirm Bluetooth source support
Confirm source-device support for any advertised Bluetooth feature.
Compare tested battery results
Compare battery results with noise control enabled at ordinary volume.
Independent perspectives
Expert reviews 0
Independent ratings, converted to the same five-point scale. Each card links to the original review and identifies the available evidence.
No scored critic reviews have been imported for this exact product yet. It remains unrated.
Independent reviews, made comparable
What does the COR Score mean?
One consistent scale makes different publishers’ ratings easier to compare. The original review still tells you why a critic reached that verdict.
Read our scoring methodology →Scale conversion · example
8/ 104.00/ 5
An illustration of conversion, not this product’s rating.
Check the match
Identify the exact model and the version reviewed. Check the manufacturer code, configuration and supplied accessories.
Compare on one scale
Convert usable ratings to five points, count each publisher once and give each critic equal weight.
Require three critics
Show the average to two decimal places after three distinct critics. Otherwise display tbd, keeping individual reviews visible.
Find the best fit by considering the score alongside the critic count, review dates, tested version and the strengths that matter to you. Eligible model-level reviews identify the tested configuration. Reviews of different hardware are shown separately and do not enter this product’s COR Score.
Know exactly what you’re buying
Trust 21665 specifications
Manufacturer code: 21665 · Icecat product 34639761 · Checked 20 Sep 2026. Specifications belong to this exact model.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
| Product type | Headset |
|---|---|
| Wearing style | In-ear |
| Connectivity technology | Wired |
| Microphone type | Boom |
| Headphone frequency | 70 - 20000 Hz |
| Weight | 75 g |
More product specifications
Open a section for the details that matter to you.
Audio & listening9 details
| Headset type | Binaural |
|---|---|
| Ear coupling | Supraaural |
| Acoustic system | Semi-closed |
| Impedance | 32 Ω |
| Headphone sensitivity | 89 dB |
| Microphone frequency | 30 - 16000 Hz |
| Microphone sensitivity | -60 dB |
| Microphone input impedance | 22000 Ω |
| Audio adapters included | 3.5 mm |
Connections & wireless1 detail
| 3.5 mm connector | Yes |
|---|
Power & battery3 details
| AC adapter included | No |
|---|---|
| USB Type-C charging port | No |
| USB Power Delivery (USB PD) | No |
Controls & features2 details
| Control unit type | In-line control unit |
|---|---|
| Control type | Buttons |
Design & dimensions2 details
| Product colour | Black |
|---|---|
| Cable length | 1.8 m |
Software & compatibility3 details
| Compatible products | PC, Laptop, Phone, Tablet |
|---|---|
| Windows operating systems supported | Yes |
| Mac compatibility | Yes |
Further product details3 details
| Recommended usage | Calls/Music |
|---|---|
| Plug and Play | Yes |
| Quantity | 1 |
Packaging & supplied accessories8 details
| Country of origin | China |
|---|---|
| Package width | 190 mm |
| Package depth | 55 mm |
| Package height | 250 mm |
| Package weight | 162 g |
| Package type | Box |
| Harmonized System (HS) code | 8518300090 |
| Manual | Yes |
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
Build your shortlist
Compare other headphones
More products in this category. Compare their exact features, original reviews and available offers alongside the Trust 21665.
| Product | Brand | Shown model | COR Score |
|---|---|---|---|
| Jabra Evolve2 75 - USB-C UC - Black reviews → | Jabra | 27599-989-899Black | tbd1 critic reviews · Available after 3 |
| HP Poly Voyager 4310 USB-C Headset +BT700 dongle +Charging Stand reviews → | HP Poly | 77Y96AABlack | tbd0 critic reviews · Available after 3 |
| Jabra Evolve2 65 Flex - Link380c MS Stereo reviews → | Jabra | 26699-999-899 | tbd0 critic reviews · Available after 3 |
| Jabra Evolve 20 reviews → | Jabra | 4999-823-169Black | tbd0 critic reviews · Available after 3 |
Your questions, answered
Trust 21665 FAQs
How many expert reviews are available for Trust 21665?
No scored critic reviews have been imported for this product yet. This means review coverage is missing; it does not mean the product received a poor review.
What is the COR Score for Trust 21665?
The COR Score is tbd. We publish a combined score only after at least three distinct critics have usable ratings. Any individual reviews already available remain visible.
Which exact version does this page cover?
This page identifies Trust 21665 using manufacturer code 21665. Check that code, configuration and supplied accessories against the retailer listing. Related-version reviews are labelled separately and do not contribute to this version’s score.
What is the listed product type for Trust 21665?
The source specification records product type as Headset. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
What is the listed wearing style for Trust 21665?
The source specification records wearing style as In-ear. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
Where can I compare prices for Trust 21665?
Use the retailer-offer section on this page for available matched offers. If no offer is shown, we do not currently have a verified price. Confirm model, stock, delivery and the final total at the retailer; coverage does not include every seller.
What does ANC remove?
It can reduce certain background sounds, especially when fit is good, but it will not remove every sound. Judge it for your environment.
Will Bluetooth version tell me every feature?
No. Features depend on profiles and implementation in both devices. Check manufacturer support information for the exact pairing.
Are open-backed headphones suitable for commuting?
Usually no. They let outside sound in and leak your audio, which may suit quiet home listening but not shared or noisy spaces.
How should I use the specifications alongside reviews?
Use the recorded features to check compatibility and make a shortlist. Read the original reviews for measured performance, everyday use and the tested configuration.
Understand your options
Headphone buying guides
Explore one topic in depth before making your shortlist.
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