






SUPRA NiTRO-X2
Ultra-slim design
14 hours of battery life
Waterproof IPX7
Hypercharge fast charging system
Free shipping over 990 SEK | Fast delivery (1–3 days)
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- 3 pairs of silicone ear pads S/M/L
- 3 pairs of Comfort Action Wings S/M/L
- Cable dispensers
- Charging cable USB-C
- Manual
Here we list the technical specifications for NiTRO-X2.
Here we collect the most common questions about NiTRO-X2.

Gives significantly more expensive earbuds a match that is difficult to win…”

“I would say that the NiTRO-X2 is best in class when it comes to sound quality…”

“Combining that weight with a solid battery life is really impressive…”


Super slim format
The slim design in combination with lightweight material such as titanium and Kevlar makes the NiTRO-X a smooth and durable companion.
The removable Comfort Action Wings help to position the earpiece in the ear for a safe and comfortable fit even during physical activity. NiTRO-X can also be used without Comfort Action Wings with only the front earphone tip mounted.

14 hours of battery life
Like its predecessor, the NiTRO-X2 is equipped with dual high performance batteries. These have now undergone further optimization and have been adapted to the upgraded AI Chip which gives 40% increased capacity and a full 14 hours of playtime. The size of the batteries is unchanged, making the NiTRO-X2 one of the world’s slimmest in-ear performance-based models.
Extraordinary expertise combined with technically superior components once again delivers a winning concept.

Waterproof in unique material choices
The NiTRO-X2 is designed entirely in accordance with our No-Nonsense concept and is also built using unique material choices. Kevlar for strain relief, carbon fiber for wear resistance and titanium aluminide for durability together with an unbeatable weight ratio.
The NiTRO-X2 has undergone a number of changes compared to it´s predecessors and the IP classification is one of these. The durable and robust construction is now fully waterproof and certified IPX7 so that you can use the earphones regardless of weather conditions or training.

Fast charging
The NiTRO-X2 has a proprietary fast-charging system called HyperCharge©. The system allows a full charge of the batteries in less than 70 minutes, giving a full 14 hours of playing time. 10 minutes of charging gives up to 2 hours of playing time, which can be very practical when intending to use the headphones during a workout and finding the battery is empty. Just connect the supplied charging cable and wait 10 minutes to have music throughout your workout.

Full control
NiTRO-X2 uses the latest digital technology in wireless transmission – HD Sound via AptX. Our proprietary AI-chip streams via aptX codec which means that as a listener you can experience music in true HD quality.
Stable transfer
The integrated AI chip has lightning fast, stable connection technology. The amplified transmission signal ensures stable and high-resolution transmission without interruption or interference.
Bluetooth ®
The AI chip is updated to follow the latest Bluetooth standards, resulting in a more reliable and less energy-intensive wireless transmission.
More information
Technical specifications
Weight headphones: 13.7 grams
IP rating: IPX7
Cable: 50cm TPE-insulated and Kevlar-reinforced
Microphone: Proprietary development with Digital MEMS technology
Driver: Proprietary 6.1mm dynamic SBS6Dv.2
Frequency response: 16Hz – 22kHz
Impedance: 22 Ohms
Sensitivity: 98dB @ 1kHz
Distortion: 3%
Support high resolution codec up to 24 bit, 192 kHz audio data format
Total battery life: 14 hours
Headphone charging time: 55 minutes
Charging port input: USB-C
Bluetooth 5.0
Range: > 10m
Chipset: Proprietary SBSC_B4v.2
Support for the transfer of 2 Mbit/s data information
FAQ
Vanliga frågor
Here we’ve gathered the most common questions about NiTRO-X2.
What is the battery life of NiTRO-X2?
NiTRO-X2 offers up to 14 hours of battery life, which is very good for its size and weight.
The earbuds also support fast charging:
- 10 minutes of charging → up to 2 hours of playtime
- Full charge → about 55–70 minutes
How good is the sound on NiTRO-X2?
NiTRO-X2 delivers powerful and detailed sound with a clear balance between bass, midrange and treble. The earphones are equipped with a proprietary 6.1 mm dynamic driver (SBS6Dv.2) that provides deep, distinct bass and clear treble.
With a frequency range of 16 Hz – 22 kHz and support for high-resolution audio up to 24-bit/192 kHz, you get a nuanced and engaging listening experience.
NiTRO-X2 has also received very high scores in tests and is highlighted as one of the best in its class when it comes to sound quality.
Are NiTRO-X2 good headphones for working out?
Yes, NiTRO-X2 are developed specifically for training and an active lifestyle. They have a lightweight and robust construction using materials such as Kevlar, carbon fiber and titanium aluminide, which makes them both durable and comfortable.
The ergonomic “Comfort Action Wings” ensure that the earbuds sit securely even during intense movement. Finally, with the IPX7 certification you can train as hard as you want in any weather.
Are NiTRO-X2 water resistant and what is their IP rating?
Yes, NiTRO-X2 have an IPX7 rating, which means they are both sweat- and water-resistant and can handle heavy rain and tough workouts.
This means you can safely use them for:
- Intense training
- Running in the rain
- Activities in demanding environments
However, they are not intended for prolonged submersion in water.
How good is the microphone on NiTRO-X2 for calls?
NiTRO-X2 is equipped with a proprietary microphone with digital MEMS technology that provides clear voice pickup.
This makes them suitable for:
- Phone calls
- Hands-free use
- Calls on the move
How do NiTRO-X2 fit in the ears, and are they comfortable?
NiTRO-X2 has an ergonomic and lightweight design (approx. 13.7 grams) that makes them comfortable to use for longer periods.
The included silicone tips and the removable “Comfort Action Wings” allow you to customize the fit for maximum stability and comfort, especially during workouts.
How does the connection to NiTRO-X2 work?
NiTRO-X2 uses Bluetooth 5.0, which provides a stable and energy-efficient wireless connection with a range of over 10 metres.
The earphones also support aptX HD, enabling high-resolution audio streaming with low latency.
What material are NiTRO-X2 made of?
NiTRO-X2 are built with advanced materials such as Kevlar, carbon fiber, and titanium aluminide – materials often used in the aerospace industry for their low weight and high durability.
Kevlar for strain relief, carbon fiber for wear resistance, and titanium aluminide for durability with an unbeatable weight ratio.
This results in a very robust construction that withstands heavy use and daily wear.
How much does NiTRO-X2 weigh?
NiTRO-X2 weighs approximately 13.7 grams, making them light and comfortable to wear even during longer workouts.
Does NiTRO-X2 work with iPhone and Android?
Yes, NiTRO-X2 works with both iPhone and Android via Bluetooth 5.0 and is compatible with most modern devices.
