Bastex F21B Universal Earphones: Crisp Sound at an Affordable Price

Published on June 18, 2023, 7:35 p.m.

Earbuds are a convenient way to listen to music and make calls on the go. With so many options on the market, it can be hard to find a quality pair at an affordable price. The Bastex F21B aims to deliver great sound without breaking the bank. Let’s take a closer look at what these earbuds have to offer.


The Bastex F21B Universal Earphones provide crisp stereo sound and noise cancellation in a lightweight, tangle-free package. The in-line microphone makes it easy to take calls. At just $6.99, these earbuds deliver solid performance and features at a budget-friendly price.

Key Features

  • In-line microphone for calls
  • Single button remote for music control
  • Noise isolating design
  • Tangle-free cable
  • Durable metal construction
  • Universal 3.5mm compatible
     Bastex F21B Universal Earphones

Design - Subtle Yet Functional

While the Bastex F21B Universal Earphones don’t push any design boundaries, their understated aesthetics have versatile everyday appeal. The matte black color blends seamlessly with any smartphone or music player. The angled in-ear fit provides a secure yet comfortable feel. Small touches like the flattened cable and metallic accents elevate the look and feel beyond generic budget models.

Ease of Use - Plug and Play Simplicity

Using the Bastex F21B Universal Earphones couldn’t be much simpler. Just plug the 3.5mm jack into your device, pop the earbuds in your ears, and start listening. The single-button remote handles all the essential controls without confusion. Phone calls come through clearly thanks to the capable microphone. The long cable length enables easy device storage in pockets or bags without constantly catching. Overall, the hassle-free user experience makes these earbuds a pleasure to use on the go.

Sound Quality - Crisp Stereo Reproduction

While audiophiles may want more refinement, the Bastex F21B Universal Earphones delivers very solid stereo audio for the price. The bass provides impactful thump without muddying the mids and highs. Vocals come through clearly and treble has decent detail without harsh sibilance. The noise isolation dampens external sounds for a more immersive listening experience. Are they the last word in fidelity? No. But the lively sound beats expectations.

Microphone - Clear Call Clarity

The in-line microphone captures your voice faithfully while minimizing distracting ambient noise. Callers come through loud and clear as well. The single-button remote makes it easy to answer or end calls with a quick press. No need to fumble with your phone when a call comes in. For affordable earbuds, the call quality stands out.

Noise Isolation - Blocks Out Distractions

While not active noise cancelling, the snug in-ear fit provides meaningful noise isolation. The silicon tips mold securely to your ear canal to dampen external sounds. This allows you to focus on your music or calls without distractions seeping in. The passive isolation effect makes these earbuds great for commutes or environments with moderate background noise.

Battery Life - Always Ready

With no batteries required, the Bastex F21B Universal Earphones are ready whenever you are. You never have to worry about recharging or carrying extra batteries. The wired design delivers power directly from the connected device. For those who don’t want another gadget to charge, this simplicity has great appeal.

Connectivity - Universal Compatility

The 3.5mm connector makes the Bastex F21B Universal Earphones plug-and-play with virtually any smartphone, tablet, laptop, or audio player. Android, iPhone, Windows, Mac - you name it. No adapters or dongles required. This universality means you can use the earbuds seamlessly with all your devices. No need to buy specifically for iPhone or Android.
 Bastex F21B Universal Earphones

Controls - Simple and Intuitive

The single in-line button provides effortless control over calls and music playback. Press once to answer or hang up calls. Double press to skip tracks or press and hold to activate voice assistants like Siri. No complex combinations to remember. The intuitive operation means you can control your audio without even looking.

Build Quality - Sturdy Construction

The metal housing and reinforced cabling give these earbuds a solid feel that should withstand some abuse. The strain relief on the 3.5mm plug also adds durability. While a few customers have cited build quality issues, most report the earbuds holding up fine under normal use. Considering the low price, many buyers find the construction quality impressive.

Comfort - Secure In-Ear Fit

Thanks to the angled earbud design and selection of silicone tip sizes, the Bastex F21B Universal Earphones can achieve a tailored fit for your ears. The tips seat securely without feeling either too loose or too tight. The lightweight construction and tangle-free cable don’t add any cumbersome bulk. Overall, the earbuds strike a great balance of stability and relaxed long-term wear.

Use Cases

  • Taking calls on the go
  • Listening to music while commuting or exercising
  • Using with smartphones, tablets, laptops
  • Affordable backup earbuds

User Feedback Analysis

With over 300 customer reviews, the Bastex F21B Universal Earphones have garnered largely positive feedback for their impressive value. Satisfied buyers praise the high-quality sound, effective noise isolation, intuitive controls, and incredibly affordable price point. Critical reviews mainly take issue with some build quality inconsistencies.

Positive feedback consistently highlights the crisp stereo sound that delivers strong bass without sacrificing clear mids and treble. Many mention the earbuds sounding better than much pricier models, providing rich audio beyond their humble cost. Users also comment on the in-line microphone capturing voice and ambient sounds cleanly for effortless call-taking.

In terms of design, customers appreciate the understated aesthetic, secure fit, lightweight feel, and tangle-resistant cabling. These thoughtful touches make the earbuds comfortable and convenient for all-day wear. Reviewers say the earbuds are ideal for everyday use thanks to their versatility, durability, and hassle-free experience.

Regarding value, users rave about the impressive capabilities obtained for less than $10. The combination of great sound, seamless device compatibility, intuitive controls, and noise isolation provides features found on earbuds costing many times more. Customers consistently rank the Bastex F21B Universal Earphones as a top budget option that doesn’t feel cheap.

Critical reviews mention the main downside as occasional build quality issues, like channel imbalance or connection points failing over time. However, most negatives acknowledge the limitations inherent in inexpensive earbuds. Considering the miniscule price, most defects are deemed forgivable and not deal-breakers.

In summary, feedback indicates the Bastex F21B Universal Earphones deliver tremendous value for those seeking good-quality audio on tight budget. While durability issues do occur for a small percentage of users, the vast majority find these earbuds a bargain for their performance. For an affordable pair of great-sounding earbuds, the Bastex F21B Universal Earphones earns its positive reputation.


  • Great sound quality for the price
  • Effective noise isolation
  • Lightweight and comfortable fit
  • Inline mic and remote
  • Very affordable cost


  • Durability issues for some users
  • Basic design and materials
  • No volume control on remote


The Bastex F21B Universal Earphones provide tremendous value for the affordable $6.99 price tag. The sound quality, noise isolation, integrated microphone, and universal compatibility are impressive features for budget-friendly earbuds.


If you need an affordable pair of earbuds and don’t want to sacrifice sound quality or features, the Bastex F21B Universal Earphones is a superb option. The crisp audio performance and noise isolation exceed expectations for the price. Just don’t expect lavish materials and styling. Overall, the Bastex F21B Universal Earphones deliver impressive value for money.

 Bastex F21B Universal Earphones


  • Connector: 3.5mm
  • Driver: unknown
  • Frequency response: unknown
  • Sensitivity: unknown
  • Impedance: unknown
  • Cord length: unknown, appears approximately 4 ft
  • Weight: 0.81 oz

What’s in the box

The Bastex F21B Universal Earphones come packaged with:
- Earbuds with microphone and remote
- 3 sets of silicone ear tips
- Carrying pouch
- Cleaning cloth

How to Use

  1. Choose the ear tip size that fits most comfortably in your ears.
  2. Insert the earbuds into your ears with the cable running behind your neck.
  3. Connect the 3.5mm plug to your phone or audio device.
  4. Use the inline remote button to play/pause music and answer/end calls.
  5. Adjust the volume on your connected device.
Bastex F21B Universal Earphones