Cosmic Byte Velox 39g Review: An Exceptional Budget Gaming Mouse

Detailed review of the Cosmic Byte Velox 39g Tri-Mode Mouse covering design, performance, sensor, battery life, pros, cons, and buying advice.
By Anshul Negi
Cosmic Byte Velox 39g

Gaming peripherals in India have come a long way, and Cosmic Byte has continuously tried positioning itself as a value-for-money brand. The company now hopes to serve up a premium-grade esports mouse at an affordable price with the launch of the Cosmic Byte Velox 39g Ultra-Light Tri-Mode Gaming Mouse. With its PixArt PAW3395 sensor, tri-mode connectivity, and unbelievably light 39-gram body, the Velox immediately turned heads among competitive gamers and budget enthusiasts alike.

Below, we’ll take a deeper dive into the mouse’s design, features, and performance; its pros and cons; and who should consider buying it.

Design & Build Quality of Cosmic Byte Velox 39g: Feather-Light but Functional

Cosmic Byte Velox 39g
Source-Venom’s Tech

First of all, you are going to notice how super lightweight it is, weighing just 39 grams. That is extremely rare, especially for a tri-mode wireless mouse. Most lightweight gaming mice have to give up features or durability to get that low of weight, but Cosmic Byte has done a surprising job here.

The structure feels minimalist yet functional. It doesn’t feature honeycomb cutouts, which many brands use to cut down on weight. Instead, Velox employs a solid shell, keeping it cleaner and more resistant to dust. For players migrating from heavier mice (100 g+), this difference is transformative: faster flicks, smoother tracking, and less wrist fatigue during long sessions.

Ambidextrous in shape, but the side buttons are placed for right-handed use. PTFE skates on the bottom provide a smooth glide, perfect for both speed and control pads.

Cosmic Byte Velox 39g Tri-Mode Connectivity: A Mouse for Every Situation

One of the biggest strengths of the Velox is its tri-mode connectivity.

1. 2.4 GHz Wireless Mode

This will be your default mode that gamers will be using. It has low latency and a stable response—a must for FPS titles such as Valorant, Apex Legends, and CS2. With the PixArt 3395 sensor and 1000 Hz polling rate, the mouse feels responsive and crisp.

2. Bluetooth Mode

Perfect for non-gaming scenarios: productivity, browsing, or using with your laptop, tablet, or Mac, Bluetooth consumes very little power and gives you super long battery life.

3. Wired USB-C Mode

Wired mode is available for gamers who need uninterrupted power during marathon sessions, while the included paracord-style cable is flexible to reduce drag and provides a near-wireless feel. universal—one

This flexibility makes Velox truly universal-one mouse for gaming, office work, and travel.

Cosmic Byte Velox 39g Sensor Performance: The PixArt PAW3395 is a high-end option.

Cosmic Byte Velox 39g
Source-Venom’s Tech

The Velox comes with the PixArt PAW3395, one of the best sensors that is presently available for modern gaming mice. Sensor specs include:

  • Up to 26,000 DPI,
  • 50G acceleration
  • Smooth low-latency response
  • Stable flick tracking

This sensor is used even in premium mice costing 5–10k, so seeing it in a sub-3k mouse is impressive. Performance from this sensor feels consistent and well-suited for competitive shooters, where micro-adjustments and precision matter.

With software, DPI levels can be adjusted to suit every game’s sensitivity. Be it a low-sensitivity FPS player or a high-DPI MOBA player, the sensor won’t disappoint.

Cosmic Byte Velox 39g Buttons, Clicks & Software Customization

Cosmic Byte Velox 39g
Source-Venom’s Tech

The Velox includes 5 buttons—sufficient for most gamers but not suited for MMOs or productivity-heavy workflows. Its primary clicks are crisp and responsive, with minimal pre-travel. During gaming tests in wireless mode, no noticeable latency or misclick issues were evident.

The software allows:

  • 650 IPS tracking speed
  • DPI tuning
  • Polling rate adjustment
  • Macros creation
  • Button remapping
  • Lift-off distance settings
  • RGB lighting customization—if enabled

The UI is straightforward and unbloated, though it’s not as polished compared to Logitech or Razer. Anyway, it should cover most users’ needs.

Battery Life & Power Management

Cosmic Byte Velox 39g
Source-Venom’s Tech

With a 230 mAh battery, the Velox doesn’t boast massive battery life, but thanks to its efficient components and low-power sleep mode, it lasts reasonably well.

  • Bluetooth mode: Best battery life
  • 2.4 GHz mode: Medium, especially with high polling rate
  • Wired mode: unlimited use

The mouse auto-enters light sleep in 1 minute and deep sleep in 20 minutes, thus conserving battery well. LEDs also indicate low battery and shutdown level.

Expect 2–4 days of battery for normal mixed use. Hardcore gamers may find they have to charge every day, but at least the top-up process is fairly quick.

Cosmic Byte Velox 39g Gaming Experience: Does It Perform in Real Matches?

Here’s where the Velox really starts to shine: this mouse is incredibly light, accurate, and responsive. For fast-paced movement games like Valorant or CS2, the sensor tracks without fault even when doing sudden flicks or quick micro-movements.

Why competitive gamers may love it:

  • Fast flick shots feel effortless.
  • Smaller wrist strain during long sessions.
  • Excellent glide on both fast and control pads
  • Very low input latency
  • Good shape for claw and fingertip grip

Coming from a 90 g or 120 g mouse, the increase in speed will be instantly apparent.

Pros and Cons

Pros:

  • Extremely lightweight (39g)
  • High-end PixArt 3395 sensor
  • Tri-mode: GHz, BT, wired
  • Very smooth PTFE feet
  • Great for competitive FPS
  • Affordable for the features
  • Comfortable ambidextrous shape

Cons:

  • Only 230 mAh battery
  • Software is basic
  • Only 5 buttons
  • Long-term durability is unknown
  • Mixed reviews about Cosmic Byte‘s customer support

Who Should Buy the Cosmic Byte Velox?

  • Buy it if you play FPS games and need a light and fast mouse.
  • You want tri-mode flexibility, along with good battery performance.
  • You are upgrading from a heavier mouse and want fingertip/claw grip comfort.
  • You want premium-level performance without paying 5–10k.
  • Maybe skip it if you need many programmable buttons.
  • You prefer a heavier mouse for control.
  • You want a mouse from a company with very strong long-term service support.

Verdict: Feature-rich esports mouse at a budget price.

The Cosmic Byte Velox 39g Ultra-Light Tri-Mode Mouse is, without doubt, one of the boldest offerings in India’s budget gaming mouse segment. With its premium sensor, feather-light build, tri-mode connectivity, and surprisingly good performance, it easily stands out in the sub-₹3000 category. Is it perfect? Not quite: battery life could be better, and customer support varies upon location. However, in terms of raw performance, design, speed, and value, the Velox dominates.

Anshul Negi is a contributor at Urban Scroll who writes about worldwide technology trends, new gadget launches, and practical product guides. His work is focused on simplifying tech information and helping readers choose the right devices with confidence.

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