Asus ROG Cetra Open Wireless: A New Spin on Gaming Earbuds

The Asus ROG Cetra Open Wireless earbuds represent a notable shift in gaming audio design. Instead of sealing your ears like traditional in-ear monitors, these buds rest just outside the ear canal, projecting sound toward your ears while deliberately letting environmental noise in. Combined with dual‑wireless connectivity and clever charging features, they aim to bridge the gap between high‑performance gaming and all‑day, everyday use.

Inspired by their unveiling at CES, this guide breaks down what makes these earbuds different, how their technology works, and whether an open‑style design is a good match for your gaming setup.

What Makes the ROG Cetra Open Wireless Different?

Gaming earbuds typically emphasize isolation, bass-heavy sound, and compact charging cases. The ROG Cetra Open Wireless tackle the problem from another angle, prioritizing spatial awareness, comfort, and multi-device connectivity.

• Open-ear construction that sits outside the ear canal
• Dual wireless: Bluetooth plus 2.4GHz low-latency dongle
• USB-C passthrough charging via the dongle
• Long battery life targeted at extended gaming sessions
• AI-powered noise filtering focused on microphones and smart audio modes

This combination aims to solve a long-standing issue with gaming audio on the move: how do you remain aware of your surroundings without sacrificing responsive, high‑quality sound?

Understanding Open-Ear Gaming Audio

Open-back and open-ear designs have long been preferred by many audiophiles because they often deliver a more natural, airy soundstage. In full-size headphones, open backs use vents and mesh to let sound and air pass through the ear cups. With buds like the ROG Cetra Open Wireless, the principle is similar, but the form factor is different: they rest just outside the canal and avoid creating a tight seal.

Why Designers Use Open or Semi-Open Designs

Open audio products are generally chosen for:

• Spatial realism: Sound is perceived as coming from around you rather than from inside your head.
• Reduced ear fatigue: Less pressure in the ear canal, often more breathable and comfortable for longer sessions.
• Situational awareness: Ambient noise can still be heard, an increasing priority for safety and multitasking in real-world environments.

Research on headphone use and hearing health notes that fully isolated listening at high volumes can increase the risk of hearing damage if users compensate for background noise by turning the volume up excessively.¹ Open-ear designs can help by encouraging lower listening volumes in noisy environments, as you remain more aware of external sounds.

Trade-offs Compared to Sealed Earbuds

The downside is straightforward:

• Less passive isolation: You will hear more of your surroundings, which is sometimes an advantage, sometimes not.
• Potentially less bass impact: Without a sealed chamber in the ear canal, achieving strong low-frequency punch is more difficult.
• Not ideal for very loud environments: In crowded trains or noisy events, isolation-focused earbuds or ANC headphones still perform better.

Asus attempts to compensate using specially tuned drivers and software-based enhancements, while embracing the benefits of openness for everyday life and gaming.

Core Specs and Feature Snapshot

While specific numbers can vary by region, the following table captures the core capabilities that define the ROG Cetra Open Wireless based on Asus’s official product documentation and supporting reviews:

Many of these capabilities—such as the relatively large 14 mm-class drivers and dual‑wireless connectivity—are more common in full-size gaming headsets than in lightweight earbuds, making this model stand out in the in-ear category.

Connectivity: Dual Wireless for Serious Gaming

Where most true wireless earbuds rely exclusively on Bluetooth, the ROG Cetra Open Wireless add a dedicated 2.4 GHz wireless link via a tiny USB-C dongle. This approach aligns with gaming headset trends, where low-latency 2.4 GHz wireless is favored for fast-paced games.

Bluetooth for Everyday Use

Bluetooth offers broad compatibility with phones, laptops, tablets, and handheld consoles. The Cetra Open earbuds support modern Bluetooth standards, which means:

• Easy pairing with most mobile and desktop platforms
• Reasonable latency for casual gaming and media streaming
• Lower power consumption than constant 2.4 GHz use in many cases

Bluetooth audio latency has improved significantly with newer profiles and codecs, but it still tends to be higher than proprietary or 2.4 GHz solutions used in dedicated gaming gear.³

2.4 GHz ROG SpeedNova for Competitive Play

For demanding titles—competitive shooters, action games, or rhythm games—latency becomes more noticeable. That’s where Asus’s ROG SpeedNova 2.4 GHz wireless enters the picture. Using a compact USB-C dongle stored in the charging case, the earbuds connect in a similar fashion to wireless gaming headsets.

Key advantages of the 2.4 GHz mode include:

• Lower latency than typical Bluetooth, helping align sound cues with on-screen events
• More stable link at short range when pairing directly to PCs, consoles, or handhelds
• Simple plug‑and‑play behavior on USB-C devices

Low-latency wireless is particularly important in competitive gaming environments where even small timing discrepancies can impact performance.⁴

USB-C Passthrough Charging: Playing While You Power Up

One standout feature is the USB-C passthrough charging on the 2.4 GHz dongle. Instead of occupying a precious USB-C port on your device, the dongle itself provides an additional USB-C port that can be used to charge the host hardware while you game.

In practice, this means you can:

• Connect the dongle to a handheld console or laptop
• Plug your charger into the dongle’s USB-C passthrough port
• Game with low-latency wireless while the device receives power

This concept mirrors the general trend of modern USB-C accessories acting as miniature hubs or pass‑through devices, preserving functionality while adding features.

Audio Performance and Game-Focused Features

On paper, the ROG Cetra Open Wireless pack a suite of features aimed at gaming immersion and communication clarity. While subjective impressions depend on individual preferences, their design offers several noteworthy capabilities.

Driver Tuning and Virtual Bass Enhancement

The 14.2 mm drivers are larger than those in many typical earbuds, which helps compensate for the lack of a sealed fit. To bolster low frequencies, Asus adds software-driven bass enhancement modes—often branded terms like “Phantom Bass” or similar in its ecosystem. These algorithms emphasize specific low-frequency bands, creating the sensation of deeper bass without overwhelming the midrange.

Because open-ear designs inherently let low-end energy escape, virtual bass enhancement is critical for explosions, engine sounds, and other cinematic cues. When tuned correctly, you should get a satisfying thump without muddying voice chat or environmental details.

Immersion Mode vs. Traditional ANC

Active noise cancellation (ANC) relies on microphones recording external sound and generating an opposite-phase signal to cancel it. For ANC to work well, a sealed physical fit is extremely helpful. Open earbuds, by design, can’t isolate enough to let typical ANC perform at its best.

Instead of standard ANC, the Cetra Open use a customized “immersion” or dynamic filtering mode:

• Selective frequency shaping reduces the prominence of certain types of exterior noise, especially in mid or high bands.
• Adaptive equalization can subtly adjust the audio profile based on the perceived environment.

You should not expect airplane‑cabin-style silence from this approach. Rather, the goal is to keep the outside world audible while nudging the game audio forward in your perception.

AI-Assisted Microphone Noise Cancellation

The earbuds include multiple microphones and AI-based noise suppression to focus on your voice and reduce background chatter for teammates. Asus and other manufacturers typically train these algorithms on large datasets of speech and environmental sounds. Modern deep-learning noise suppression systems have been shown to significantly improve speech intelligibility in noisy environments.⁵

In practice, this means:

• Less keyboard and controller clatter for teammates
• Reduced hum from fans or air conditioning
• More consistent voice clarity during online matches or calls

Comfort, Fit, and Build Details

Long sessions are central to the gaming use case, so comfort is crucial. The ROG Cetra Open Wireless earbuds emphasize low weight, skin-friendly materials, and an ear-hook design to keep them stable.

Ear-Hook Design for Stability

Instead of relying on a tight in-canal fit, the buds use small hooks that nestle around the outer ear. This design helps:

• Improve stability during head movement or walking
• Reduce pressure inside the ear canal
• Distribute weight more evenly across the outer ear

Open-ear hooks have become more common for sports and all-day wearable devices, since they typically remain secure without causing the plugged-ear sensation some users dislike.

Materials and Skin-Friendly Surfaces

Asus highlights “skin-friendly” materials for surfaces that contact the ear. While this phrasing can be broad, many manufacturers lean on soft-touch plastics, silicone, and coatings tested for prolonged skin contact. Standards such as ISO 10993 guide biocompatibility testing for materials that touch the body for extended periods.⁶ While consumer earbuds are not medical devices, drawing on similar material principles can help minimize irritation during long-term wear.

Weight and Battery-Life Balance

With battery life stretching into dozens of hours across the case and buds, a key design challenge is balancing capacity and weight. The ROG Cetra Open Wireless keep each bud light enough for extended use while relying on efficient wireless chips and power management. For gamers, this means:

• Fewer charging breaks across a busy week
• Confidence the earbuds will last long gaming sessions or travel days
• Less battery anxiety when switching between devices

Multi-Device Use Cases

One of the most compelling aspects of these earbuds is their flexibility across platforms. If you own multiple gaming devices or frequently move between PC, console, and mobile, the Cetra Open Wireless can simplify your audio setup.

Example Usage Scenarios

• PC or laptop gaming: Use the 2.4 GHz dongle for shooters or competitive titles where timing is critical.
• Console play: Plug the USB-C dongle into a PlayStation 5 or Switch for couch sessions without dealing with long cables.
• Handheld gaming: Pair them with a USB-C handheld such as the ROG Ally line and pass-through charge while you play.
• Mobile and everyday listening: Switch to Bluetooth to take calls, listen to music, or watch videos on your phone.

Swapping between these modes is often just a matter of moving the dongle or toggling Bluetooth on your devices, reducing friction compared to maintaining multiple headsets.

Pros and Cons at a Glance

Frequently Asked Questions

Are open-ear gaming earbuds good for competitive play?

They can be, especially when combined with low-latency wireless like the ROG SpeedNova 2.4 GHz link. The main trade-off is isolation. If you compete in a quiet room and value comfort and spatial awareness, open earbuds can work well. If you play in noisy environments, a closed or ANC headset may still offer an advantage.

Do open earbuds leak sound to people nearby?

Yes, more than fully in-ear buds. Because they sit outside the canal and don’t seal, higher listening volumes will be more audible to people close to you. At moderate volumes, leakage is usually manageable, but they are not as discreet as sealed earbuds.

Can the ROG Cetra Open Wireless replace a full-size gaming headset?

For many users, they can. The combination of low-latency 2.4 GHz wireless, long battery life, and microphone noise reduction makes them capable for competitive games and voice chat. However, if you prefer maximum isolation or very powerful bass, a closed-back over-ear headset may still feel more immersive.

How does passthrough charging work with these earbuds?

The USB-C dongle includes its own USB-C port. You plug the dongle into your device (such as a handheld, laptop, or console), then plug your charger into the dongle. Power flows through to the device while the dongle maintains the 2.4 GHz wireless connection to the earbuds.

Will they work with older devices that don’t have USB-C?

The 2.4 GHz dongle requires USB-C, but you can still connect via Bluetooth to compatible older devices (for example, some laptops, phones, or adapters). For consoles or PCs lacking USB-C, you may need an additional adapter or rely on Bluetooth if supported.

Who Are the ROG Cetra Open Wireless Earbuds For?

These earbuds target a specific type of gamer: someone juggling multiple screens and platforms who values comfort, awareness, and flexibility as much as raw isolation. If you often:

• Switch between PC, console, and mobile devices
• Game in shared spaces where hearing the environment matters
• Dislike the pressure of traditional in-ear tips
• Want one audio solution that also covers daily music and calls

then the ROG Cetra Open Wireless are a compelling option. They do not try to replace every type of headset, but they carve out a niche that aligns well with how many people actually play today—on the couch, on handhelds, and on the move.

As gaming hardware continues to evolve toward more portable PCs, handheld consoles, and multi-platform ecosystems, earbuds like these are likely to become increasingly common: lightweight, flexible, and designed for the realities of modern, mobile gaming life.