Headphones: Everything You Need to Know Before Buying
Years ago, buying headphones was simple: you chose between cheap wired ones or slightly better ones. Today, the market is completely different. You have dozens of brands, hundreds of models, different form factors, noise cancellation, wireless audio codecs, water resistance, virtual assistant integrations — and prices ranging from €15 to over €500.
The result? Many people make bad purchases. They buy impulsively, for the design, because an influencer recommended them, or simply because they were on sale. And then they regret it: they're uncomfortable, the battery doesn't last the day, the microphone is a disappointment on calls, the sound didn't meet expectations.
This guide exists so that doesn't happen to you. You'll leave here knowing exactly what to look for, what questions to ask, and how to find the right headphones for what you actually do with them.
First: What Will You Use Your Headphones For?
This question seems obvious, but it's the most important one of all — and most people don't answer it honestly before buying.
Will your headphones primarily be used for:
- Work and video calls? Microphone quality and long-term comfort are priorities.
- Listening to music at home? Sound quality and faithful frequency reproduction become more important.
- Gym and sports? Secure fit, sweat resistance, and lightness are essential.
- Travel and public transport? Noise cancellation and battery life make a difference.
- Gaming? Minimal latency, spatial sound, and communication microphone are the focus.
- Mixed and daily use? You need versatility — and not to compromise too much in any area.
Having a clear answer to this will save you time, money, and the frustration of a wrong purchase.
The Different Types of Headphones
Over-Ear (Circumaural)
Over-ear headphones are the largest — the earcups completely enclose the outer ear without touching it. They are the preferred format for those who prioritize sound quality and comfort during long sessions.
Strengths: More immersive and detailed sound, larger area for higher quality drivers, very effective active noise cancellation in this format, comfortable for many hours straight.
Weaknesses: Bulky, less portable, can get warm on hot days, usually heavier.
Ideal for: Those who work from home, study, produce music, game, or want the best sound experience.
On-Ear (Supra-aural)
On-ear headphones rest on the outer ear. They are more compact and lighter than over-ear models, while retaining some of the sonic advantages of headband headphones.
Strengths: More portable and foldable, good sound quality, easier to carry.
Weaknesses: Direct pressure on the ear can be uncomfortable during very long sessions, less passive isolation.
Ideal for: Those who want a compromise between portability and sound quality for everyday use.
In-Ear (Intra-aural)
In-ear headphones fit inside the ear canal. They are the most discreet and portable format — and for years they were the go-to solution for on-the-go use.
Strengths: Compact, lightweight, good passive isolation when properly fitted, great for sports.
Weaknesses: Can cause discomfort during very prolonged use, sound with less soundstage than over-ear, quality varies greatly between brands.
Ideal for: Those who travel a lot, play sports, or need something discreet and easy to store.
TWS — True Wireless Stereo
TWS earbuds are completely wireless — each unit is independent, with no cables between them. They revolutionized the market and quickly became the most popular format among modern users.
Strengths: Complete freedom of movement, compact and modern design, charging case extends battery life, many models with ANC and transparency modes.
Weaknesses: Shorter battery life per charge (typically 5 to 8 hours), can be lost more easily, slightly higher latency in some models.
Ideal for: Practically everyone who needs versatility — work, music, mobility, light sports.
Wired Headphones
The classics. They still have a place in the market — especially where zero latency and maximum sound quality are non-negotiable.
Strengths: Zero latency, no need to charge, superior sound quality for the same price, universal compatibility.
Weaknesses: Less practical for daily use, the cable can be cumbersome, fewer and fewer 3.5mm jack inputs on new smartphones.
Ideal for: Competitive gamers, music producers, audiophiles, users who don't want to rely on batteries.
The Specifications That Really Matter
Active Noise Cancellation (ANC)
ANC uses external microphones to pick up ambient sounds and generates an opposite sound wave that neutralizes them. The result is a significant reduction in background noise — very effective against continuous sounds like engines, air conditioning, or traffic.
Important things to know about ANC:
- It does not eliminate sharp and sudden sounds (nearby voices, slamming doors).
- It consumes battery — expect less battery life with ANC active.
- Quality varies greatly between models: brands like Sony, Bose, and Apple still set the market standard in this area.
- In mid-range options, there are models with functional ANC at affordable prices.
Transparency Mode (Passthrough)
The opposite of ANC: it uses external microphones to amplify ambient sound, allowing you to hear what's going on around you without taking off your headphones. Very useful in situations where you need to be aware of your surroundings — running on the street, quick conversations, announcements on public transport.
Bluetooth Connectivity
For wireless headphones, Bluetooth is the backbone of the connection. What you should know:
- Version: Bluetooth 5.0 or higher ensures more stable connections, lower power consumption, and greater range.
-
Audio codecs: determine the quality of wirelessly transmitted sound.
- SBC: basic standard, compatible with everything.
- AAC: better for Apple users.
- aptX / aptX HD: better for Android with support.
- LDAC: the best wireless codec available, developed by Sony — transmits three times more data than SBC.
- Check if your phone supports the codec offered by the headphone model.
Battery Life
One of the most frequently consulted criteria — and often the most misinterpreted. The values announced by manufacturers are usually measured under ideal conditions (low volume, ANC deactivated).
Realistic references:
| Type | Battery Life per Charge | With Case (TWS) |
|---|---|---|
| Over-ear Bluetooth | 20 – 35 hours | — |
| On-ear Bluetooth | 15 – 25 hours | — |
| TWS | 5 – 9 hours | 20 – 35 total hours |
- Look for models with fast charging: 10 to 15 minutes of charging providing 1 to 2 hours of use is a very practical feature.
- Some premium TWS models support wireless charging (Qi).
Microphone Quality
If you use your headphones for calls, online meetings, or gaming, the microphone is half the equation.
- In premium over-ear headphones, microphones usually have good voice pickup and background noise cancellation.
- In TWS, microphone quality varies greatly — always read specific reviews about call quality, not just music.
- For intensive remote work, consider models with Microsoft Teams or Zoom certification.
Water and Sweat Resistance
Essential for sports use. The IPX rating is the standard:
- IPX4: resistant to splashes from any direction — sufficient for workouts and the gym.
- IPX5: resistant to water jets.
- IPX7: withstands immersion up to 1 meter for 30 minutes.
If you use them for running or training, don't overlook this specification.
Comfort and Materials
Comfort rarely appears in technical specifications — but it's what you feel most after two hours of use.
- Earpads: memory foam with synthetic leather or breathable fabric reduces fatigue during long sessions.
- Weight: for over-ear, below 280g is ideal for prolonged use.
- Headband adjustment: important for accommodating different head sizes without excessive pressure.
- In-ear tips: come in various sizes; a good fit improves both sound and comfort.
How to Choose According to Your Profile
Remote Work and Productivity
Remote work demands a lot from headphones: long meetings, deep concentration, clear calls. Over-ear headphones with ANC are the most suitable format for this use. Prioritize: effective ANC, microphone with background noise cancellation, battery life of at least 20 hours, and comfort for many hours straight.
Music and Home Entertainment
For attentive music listening, sound quality is the priority. Explore models with a wide soundstage, good instrument separation, and balanced frequency response. Wired over-ear headphones or Bluetooth with LDAC are the best options for this profile.
Sports and Gym
Here, what matters is that they stay in place during your workout and survive sweat. TWS with reinforced sports fit (ear hooks or wing tips) and IPX4 certification or higher are the right choice. Lightweight and accessible controls also matter.
Travel and Transportation
Powerful ANC to isolate from plane or subway noise, long battery life so you don't run out of power halfway through your journey, and a compact, foldable design to fit in your bag. Foldable over-ear headphones with ANC or TWS with good battery life are the two best options.
Gaming
Latency, positional sound, and microphone are the three pillars. For competitive PC gaming, wired headphones are still the standard. For console or casual gaming, wireless over-ear headphones with low-latency mode are a good alternative. Dedicated headsets from brands like HyperX, SteelSeries, Razer, or Logitech have specific gaming ecosystems.
Daily Use and Versatility
If you need a single pair for everything — work, music, commute, calls — TWS are the most practical answer. Choose a model with good ANC, a decent microphone, and comfortable battery life. The versatility outweighs the occasional sound or comfort limitations during very long sessions.
Price Ranges and What to Expect in Each
| Price Range | What the market offers |
|---|---|
| Up to €30 | Basic use. Functional sound, no ANC, simple microphone. Suitable for very occasional needs. |
| €30 – €80 | You'll find TWS or over-ear with good value for money. Basic ANC in some models. |
| €80 – €150 | Solid sound quality, functional ANC, good battery life. Ideal range for most users. |
| €150 – €300 | Premium quality. Effective ANC, very good sound, robust build, quality microphone. |
| €300 + | Top-of-the-range. The best the market offers in sound, ANC, comfort, and features. |
For those looking for a pair for daily use with good quality, the €80 to €180 range offers excellent results today — and the difference compared to the segment above €300 does not always justify the additional investment.
7 Mistakes to Avoid When Buying Headphones
- Buying solely based on looks. Attractive design is no guarantee of sound quality or comfort.
- Ignoring your actual use case. Work headphones are not the same as sports headphones — and using the wrong model for the wrong context is a guaranteed frustration.
- Blindly believing the manufacturer's battery life claims. With ANC active and normal volume, actual battery life is usually 20 to 30% lower than the advertised value.
- Not checking codec compatibility. An LDAC codec on an iPhone brings no benefit — the iPhone only supports SBC and AAC.
- Neglecting the microphone. If you use them for calls, the microphone matters as much as the speakers.
- Buying without reading real reviews. Spec sheets don't reveal how the sound actually sounds, how the ear pads feel after three hours, or how the ANC performs on a crowded subway.
- Forgetting about warranty and after-sales service. Buy from stores with real support and legal warranty in Portugal — especially for intensive use products like headphones.
FAQ
What is the difference between "auscultadores" and "auriculares"? In Portugal, "auscultadores" usually refers to over-ear and on-ear models, while "auriculares" refers to in-ear and TWS models. In practice, the terms are used interchangeably in everyday language.
Are more expensive headphones always better? Not necessarily. Beyond a certain point, quality gains are marginal, and the price reflects branding and premium materials more than a significant audible difference. For most users, models in the €100 to €200 range deliver a very satisfactory experience.
Is ANC worth the investment? If you work in noisy environments, travel frequently, or need concentration in shared spaces, ANC is one of the features with the greatest impact on quality of life — and it's well worth the investment.
Can I use TWS headphones for sports? Yes, provided you choose a model with sweat resistance certification (minimum IPX4) and a secure fit. Many modern TWS headphones are specifically designed for sports use.
What is transparency mode and what is it for? Transparency mode uses the headphones' external microphones to amplify ambient sounds, allowing you to hear what's happening around you without taking off your headphones. It's useful in situations where you need to be aware of your surroundings — on the street, talking to someone, on public transport.
How many years do good quality headphones last? With regular use and good care, a quality pair can easily last 4 to 6 years or more. The most common wear points are the ear pads (replaceable on many models) and the battery of wireless models, which loses capacity over time.
Does Bluetooth 5.0 make a real difference compared to 4.2? Yes: more stable connection, lower latency, greater range, and lower power consumption. It's not a revolutionary difference, but if you have two equivalent models and one of them has Bluetooth 5.0 or higher, it's a valid tie-breaker.