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Bluetooth earphones and portable speakers from TESNA

Product overview

Products

TESNA ZONE

Not only earbuds

TESNA MUSIC

My music world

REACH

Where TESNA has got to

These are the figures TESNA publishes globally. Market availability, series and specifications can change without notice. A serial check confirms the unit left a TESNA line; it does not replace the commercial warranty your seller gives you.

CUSTOMERS

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AUTHENTICITY

Check that they are real. In thirty seconds.

Every TESNA product carries a unique serial with a check digit. It cannot be guessed and it is not easy to copy.

This confirms the serial's format, not the product's history. For full confirmation, send us the serial on WhatsApp.

QUESTIONS

What people ask us before they buy

Are the earbuds I buy genuine?

Every product carries a serial with a check digit, on the box and under the lid. You check it above in thirty seconds. If the serial does not pass, do not buy.

What warranty do I get and where do I repair them?

Two years, through the dealer you bought from. Keep the receipt and the box. If you cannot find the dealer, message us with the serial and we tell you where to go.

Do they fall out when I run?

The open-ear models sit on a hook, not in the ear, and the hook has a titanium core. They do not come off at a sprint.

Do calls sound good?

The microphones filter noise. In a busy city the person hears you, but strong wind still comes through. We say that plainly.

How long does the battery last after a year?

Around 85 percent of the original life, at one charge a day. Lithium-ion batteries decline, and ours do too.

Can I try them somewhere?

Yes. We have dealers and partner stores. Message us on WhatsApp with your city and we send you the nearest one.

CONTACT

Tell us what you are looking for. We answer with a price.

One message, not a long form. Tell us what you do with earbuds and we tell you which model fits and what it costs.

DISCOVER

More from TESNA

Wireless and Bluetooth earbuds: how to choose the right pair in 2026

What matters when you choose

The best wireless earbuds for you depend on three things: where you wear them (for sport, at the office, on a plane), how much of your surroundings you want to hear and how many hours the battery has to last. Below is what each figure on the box means, and a comparison of the 8 TESNA earbud models, from 59 to 199 lei.

In short

For running and the gym: open-ear hook earbuds, such as the TESNA GOG100 or TESNA GOJ05.
For the office and calls all day: light open-ear earbuds, such as the TESNA EA16.
For planes, trains and the metro: active noise cancelling earbuds, such as the TESNA Ultra.
For small ears or for sleeping: the TESNA Free7, 3.9 g a bud.
For a small budget and phone games: the TESNA GTA02, 69 lei, with a gaming mode.

Wireless or Bluetooth earbuds: what is the difference?

In practice, none. "Wireless" means without a cable, which is why many shops also call them cordless earbuds, and Bluetooth is the technology almost all wireless earbuds use to connect to the phone. When you search for "wireless earbuds" or "Bluetooth earbuds", you are looking for the same thing. The real difference is between the types of earbuds, not between the two words.

True wireless earbuds (in-ear)

Two separate buds, with no wire between them, that go into the ear and charge in a pocket case. The silicone tips block outside noise, and many models also have active noise cancelling. They are the smallest and the most common. See TESNA true wireless earbuds.

Open-ear earbuds

The speaker sits in front of the ear, not in it. You hear the music, but also the cars, your colleagues or the announcements at the station. They are a good choice for running on the street and for anyone who cannot stand ear tips. They hold on with a hook, with a clip, or simply rest on the ear. How they differ from bone conduction headphones is explained in Air conduction or bone conduction.

Over-ear headphones

They cover the whole ear and have the biggest drivers and batteries. They suit long journeys and the commute, less so sport. Details in Over-ear headphones for the commute and the metro.

Battery life

The box shows two figures: how long the earbuds last on one charge, and how long they last in all with the top-ups from the case. "10 h + 32 h" means 10 hours of continuous music and another 32 hours from the case, so 42 hours in all. For an office day you need at least 6–8 hours on a charge. With ANC on, battery life drops.

Water and sweat resistance

The IP code shows how well the earbuds are protected. IPX4 handles splashes and sweat, IPX5 water jets too, so it is safer for running in the rain. Neither means you can swim with them. Every code is explained in What IPX4, IPX5, IP55 and IP67 mean.

Active noise cancelling (ANC)

Microphones in the earbuds listen to the noise around you and cancel it with an inverted signal. It works best on steady noise, such as a plane's engines or a train, and less well on voices. The figure in decibels (for example "up to 50 dB") shows how much noise it cuts at most. Adaptive ANC means the earbuds set the strength themselves. More in What adaptive ANC means.

The Bluetooth codec: SBC, AAC or LDAC

The codec decides how much audio information gets from the phone to the earbuds. SBC works everywhere. AAC is the codec iPhone uses. LDAC carries higher-resolution sound, but works only on compatible Android phones, not on iPhone. If you have an iPhone, look for AAC; if you have Android and care about quality, look for LDAC. Details in LDAC, AAC and SBC.

The Bluetooth version and multipoint

Newer versions (5.3, 5.4) keep the connection steadier and use less battery. Any 5.x version is enough for music and calls.

Multipoint earbuds stay connected to two devices at once, for example your laptop and your phone. It helps if you work from home or at the office. See What multipoint is.

Latency, if you play on your phone

Latency is the delay between picture and sound. You do not notice it in films, but you do in games. A gaming mode lowers it; the TESNA GTA02 get down to about 60 ms. More in Bluetooth earbuds for phone gaming.

Weight and fit

An in-ear bud under 5 grams is not felt after a few minutes. If you have small ears, look for XS tips in the box, as with the TESNA Free7. If you wear glasses or a bike helmet, a clip model such as the TESNA Ola 1 does not clash with the arms of your glasses. See Earbuds for small ears.

How much to spend on wireless earbuds

Under 100 lei: open-ear sport earbuds and true wireless earbuds with good battery life, Bluetooth 5.3–5.4 and sweat resistance. No ANC.
Between 100 and 200 lei: active noise cancelling arrives and, at the top, adaptive ANC and LDAC.

More tips for small budgets in Budget wireless earbuds: what you get and what to check.

Comparison: TESNA wireless earbuds

Model · type · total battery · resistance · weight per bud · price
GOJ05 · open-ear hook · 32 h · IPX4 · 8.1 g · 59 lei
GTA02 · true wireless, gaming mode · 36 h · IPX4 · 4.6 g · 69 lei
GOG100 · open-ear hook · 42 h · IPX5 · 9.4 g · 79 lei
Ola 1 · open-ear clip · 36 h · IPX5 · 6.8 g · 89 lei
GTA18 · true wireless, display, Qi · 40 h · IPX4 · 4.8 g · 89 lei
EA16 · open-ear for the office · 34 h · IPX4 · 7.4 g · 99 lei
Free7 · true wireless, 38 dB ANC · 30 h · IPX5 · 3.9 g · 109 lei
Ultra · true wireless, 50 dB adaptive ANC, LDAC · 40 h · IPX4 · 5.3 g · 199 lei

All of them connect to iPhone and Android, with delivery in 1–3 days, 14-day returns and a 12-month warranty.

Common mistakes

Choosing by total battery alone. How long they last on one charge matters more.
Buying LDAC for an iPhone. iPhone does not use it; AAC is enough.
Running on the street with ANC earbuds. You do not hear the cars. For the street, choose open-ear.
Ignoring tip size. A tip that is too big hurts; one that is too small lets noise in and loses the bass.