




SUPRA ZERO-TX2 Mini
- 2.9 grams - ultra-compact design
- IPX5 certified
- Touch controls
- Powerful sound
- 25 hours battery life
- Secure fit© ear tips for maximum comfort and fit
Safe and traceable deliveries
Sound by Sweden ships its goods with PostNord and DHL where you can choose between Varubrev to mailbox/door and agent delivery services. Delivery time within Sweden for both services is 1–3 business days.
Here we’ve gathered the technical specifications for ZERO-TX2 Mini.
Here we’ve gathered the most common questions in a FAQ

"If what you value most is comfort, a small form factor and a price tag to match the size, ZERO-TX2 Mini is a really great choice…”


Ultralight. Ultracompact. Unbeatable.
The world’s smallest earbuds
Weighing only 2.9 g per earphone, ZERO-TX2 Mini sets a new standard for how light and convenient an earphone can be. They are made from reinforced lightweight composite – the same material used in the military aviation industry – thanks to its unique combination of extreme durability and minimal weight.
The ultra-compact charging case is designed to be as discreet as the earphones themselves. So light you’ll barely notice it in your pocket – yet powerful enough to provide up to 5 full charges, equivalent to 25 hours of total playtime.
Despite their extremely compact format, ZERO-TX2 Mini never compromise on performance – you get world-class sound in the smallest possible size.

Ergonomic perfection for both everyday life and workouts
Unbeatable fit and comfort
ZERO-TX2 Mini is designed to fit comfortably and securely. Thanks to its ultra-compact size and minimal weight, the headphones are barely noticeable in your ears – even during prolonged use.
The ergonomic Secure Fit Tips© have a springy arch that gently positions the headphones in the ear while providing a stable lock. The headphones always stay in place - whether you're running, jumping or working in front of the computer in the office.
All control is done smoothly via the intuitive touch buttons .
Raise or lower the volume, change songs, answer calls, or activate your voice assistant – all with a simple touch.

Don’t be fooled by the size
Sound that surprises
Despite their ultra-compact size, the ZERO-TX2 Mini delivers surprisingly big sound. The headphones are based on SUPRA's award-winning sound design , known for its powerful, dynamic and balanced soundstage.
Whether you're listening to music, podcasts, or watching movies, the ZERO-TX2 Mini will give you an audio experience that exceeds expectations.

Mono function and noise-canceling microphones
Flexibility in voice calls
The TWS Mono feature allows you to choose to use only one of the headphones at a time. This feature is handy during calls, as many people appreciate having one ear free to better monitor their surroundings, while the sound from the call remains clear and crisp in the other.
The ZERO-TX2 Mini© is also equipped with dual ENC microphones with MEMS™ technology that reduce distracting ambient noise. The result is stable and clear voice reproduction – even in noisy environments.

5 hours of playtime per charge. Total playtime 25 hours
Minimal design – maximum performance
ZERO-TX2 Mini© combines an ultra-compact form factor with impressive performance. The earbuds deliver 5 hours of playtime per charge and, together with the minimalist charging case – weighing only 30 grams – you get a total of 25 hours of music and calls. Minimal size, maximum freedom.

Accessories
2 pairs of Secure Fit Tips© in silicone (small/medium, medium/large)
1 x USB-C SUPRA® charging cable
Learn more
Technical Specifications
Weight earphones: 2.9 grams each
Weight charging case: 30 grams
Dimensions earphones: 16 x 21 mm
Dimensions charging case: 51 x 48 x 25 mm
IP rating: IPX5
Operating temperature: -10 to +45°C
Microphone: Proprietary with digital MEMS technology and ENC
Driver unit: Proprietary 6 mm dynamic, SBS6Dv.4
Frequency response: 20 Hz–20 kHz
Impedance: 32 Ohm
Sensitivity: 101 dB @ kHz
Distortion: <3%
Total battery life: 25 hours
Charging time: 1.5 hours
Charging port input: USB-C
Version: 5.4
TWS plus = Mono function (one earbud at a time)
BLE = Bluetooth Low Energy
EDR = Enhanced Data Rate with support for 3 Mbit/s data transfer.
Supports the protocols: HFP, HSP, A2DP, AVRCP
Product comparison




2.9g per earbud
Value 1
Value 1
Value 2
Value 2
Value 2
Value 3
Value 3
Yes (Two-way)
25 hours
100 hours
120 hours
5 hours
6 hours
7 hours
IPX5
IPX5
IPX6
Dual ENC microphones
SUPRA QUAD Response© (4-way microphone technology)
SUPRA Quad Response© (4-way microphone technology)
6mm dynamic (SBS6Dv.4)
8mm dynamic (SBS8Dv.3)
8mm dynamic (SBS8Dv2)
20Hz-20kHz
20Hz-20kHz
16Hz – 22kHz
32 Ohms
16 Ohms
24 Ohms
101dB @ kHz
106dB @ 1kHz
97dB @ kHz
3%
2%
2%
Bluetooth 5.4
Bluetooth 5.3
Bluetooth 5.3
No
Yes
No
No
Yes
Yes
No
Yes
Yes
Touch controls
Multifunctional push buttons
Multifunctional push buttons
2 pairs of Secure Fit© ear tips
Charging case
USB-C charging cable
Manual
3 pairs of headphone cushions in different sizes
Powermag II© charging case
USB-C charging cable
Manual
3 pairs of Comfort Foam Tips©
3 pairs of ear cushions in different sizes
Powermag II© charging case
USB-C charging cable
Manual
FAQ
Vanliga frågor
Here we’ve gathered the most common questions about ZERO-TX2 Mini.
How does ZERO-TX2 Mini differ from the previous model ZERO-TX?
ZERO-TX2 Mini is a further development of ZERO-TX, with a focus on an even more compact design, improved performance and updated technology.
The main differences are:
- Smaller and lighter design – only 2.9 grams per earbud
- New generation driver (SBS6Dv.4) for improved sound performance
- Bluetooth 5.4 for a more stable and energy-efficient connection
- Improved microphone with ENC technology for clearer calls
- More modern design and better fit
The result is a more optimized and updated earbud with a better balance between size, sound and functionality.
What is the difference between ZERO-TX2 Mini and the other True Wireless earbuds?
ZERO-TX2 Mini are developed with a focus on minimal size, low weight and simplicity, while models like NERO-TX2 and NERO-TX PRO offer more advanced features.
The main differences are:
- Size & weight
ZERO-TX2 Mini are significantly smaller (2.9 g) than the other models - Features
ZERO-TX2 Mini: focus on compact design and ease of use
NERO-TX2: more focus on features, construction, advanced sound + app
NERO-TX PRO: more focus on ANC, longer battery, more features - Noise cancelling
ZERO-TX2 Mini lack ANC, while the PRO model has active noise cancelling - Price level
ZERO-TX2 Mini are a more affordable option
In short:
👉 ZERO-TX2 Mini = minimalism & convenience
👉 NERO series = more tech & premium features
How good is the sound on ZERO-TX2 Mini?
Considering their size, ZERO-TX2 Mini deliver impressive sound with a balanced and dynamic sound profile. The earbuds are equipped with a proprietary 6 mm dynamic driver (SBS6Dv.4) that provides clear bass, a clean midrange and crisp treble.
With a frequency range of 20 Hz – 20 kHz and support for high-resolution audio up to 24-bit/192 kHz, you get a detailed and engaging listening experience.
Despite the ultra-compact format, the earbuds deliver surprisingly powerful sound, inspired by SUPRA’s sound design.
How good is the microphone in ZERO-TX2 Mini for calls?
ZERO-TX2 Mini are equipped with dual microphones with ENC (Environmental Noise Cancellation) that filter out background noise and improve voice pickup.
The built-in MEMS technology ensures your voice is reproduced clearly and consistently even in noisy environments such as city streets or public transport.
This makes them well suited for:
- Phone calls
- Video meetings
- Hands-free use in everyday life
Are the ZERO-TX2 Mini water-resistant and what IP rating do they have?
Yes, ZERO-TX2 Mini are water-resistant and have an IPX5 rating, which means they are protected against sweat and splashes of water from all directions.
This makes them a reliable choice for an active everyday life and various types of training where the earbuds are exposed to moisture and movement.
In practice, IPX5 means you can safely use them for:
- Intense workouts and sweat
- Running and outdoor activities
- Use in light to moderate rain
The robust construction and water-resistant protection allow the earbuds to handle everyday wear and tear without issues, while maintaining their performance over time.
However, it’s important to note that ZERO-TX2 Mini are not fully waterproof. They are therefore not intended for swimming, showering or being submerged in water.
Are ZERO-TX2 Mini good headphones for working out?
Yes, ZERO-TX2 Mini are excellent earphones for training, especially if you prioritize low weight and a secure fit.
At only 2.9 grams per earbud, they are extremely light and sit discreetly in the ear.
The ergonomic design and Secure Fit tips keep them in place even during intense movement.
Together with IPX5 protection and a robust construction, you get earphones that can handle sweaty sessions and outdoor workouts.
How do ZERO-TX2 Mini sit in the ears, and are they comfortable?
ZERO-TX2 Mini has an ultra-compact and ergonomic design that makes them sit naturally and comfortably in your ears.
The low weight and small size mean you’ll barely notice them, even during longer listening sessions.
Can you use one ZERO-TX2 Mini earbud at a time?
Yes, ZERO-TX2 Mini supports TWS mono mode, which means you can use one earbud at a time.
This is useful if you want to:
- Extend battery life
- Take calls with a single earbud
- Stay more aware of your surroundings
How much does ZERO-TX2 Mini weigh?
ZERO-TX2 Mini weighs only 2.9 grams per earbud, making them one of the lightest options on the market.
The low weight contributes to high comfort and an almost invisible feel in your ears.
Do ZERO-TX2 Mini work with iPhone and Android?
Yes, ZERO-TX2 Mini works with both iPhone and Android devices via Bluetooth 5.4.
They are compatible with:
- Smartphones
- Tablets
- Computers
You can use them for music, calls, apps and voice assistants such as Siri and Google Assistant.
