It works perfectly to block Bluetooth, I recommend it for annoying neighbors.
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🧘 Personal Focus Device
📡 Take full control of your environment
🚚 Free Worldwide Shipping
🔒 7-day no-reason refund (anytime, anywhere, no reason required)
| 1× ESP32-DevKitC board (USB-C, 5V) |
| 2× Upgraded NRF24L01+PA+LNA 2.4GHz modules |
| 2× 2.4/5.8GHz Omnidirectional Antenna |
| 2× Mini Omnidirectional Antenna (8dBi) |
| 2× Blade-Type High-Gain Omnidirectional Antenna (Turbo Version) |
| 1× Adapter/expansion board (for power/reset) |
| 1× Quick-start guide & power cable |
| Quality Warranty for one year |
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Recommended: Add yearly quality warranty for extra protection and priority support.
Once you've placed your order, we'll contact you to send you your tracking number, and you can also check the status of your order at any time in the “Track Your Order” section.
We offer free and insured shipping to your address. Delivery time typically ranges from 3–9 working days. Once your order is processed, you will receive a tracking number so you can check the status of your package at any time.
It works subtly to help reduce distractions and improve your focus throughout the day. See the guide here

Zone Clearer is a compact wireless control device designed to help you create a calmer, more focused personal space. It comes as a ready-to-use kit with the board, modules, antennas, adapter, and quick-start guide.
No advanced experience is required to get started. The kit is designed for a simple USB-C powered setup, and a quick-start guide is included.
Standard Kit is the entry setup.Standard Kit.
Pro Cooling Kit adds improved cooling and stability for longer sessions.
Max Bundle gives you the fuller setup with upgraded dual-antenna configuration.
Zone Clearer is powered through USB-C and requires a 5V power supply.
Depending on your selected version, the kit includes an ESP32-DevKitC board, upgraded NRF24L01+PA+LNA modules, high-gain antennas, adapter board, quick-start guide, and power cable.
Yes. Customers receive WhatsApp 1-on-1 after-sale support to help with setup and product questions.
Yes. We offer a 30-day guarantee so you can buy with confidence.
Yes. You can add yearly quality warranty service for $9.90 per year for extra protection and priority support.
Bitsyn Lab is a nonprofit research collective founded by Asian innovators in 2020. Our members include students, mentors, and professors from leading universities, united by one simple mission: to bring curious minds together to brainstorm, build, and share creative, fun, and practical products.
As development costs continue to rise, we are launching our website to support the lab’s daily operations and invite more people from related fields or anyone who believes in our vision—to join us.
In an age shaped by artificial intelligence, we hope to preserve something deeply human: curiosity, creativity, and the joy of building together.
You have 30 days to experience it for yourself. Set it up in minutes and start enjoying a more private, focused, and distraction-free environment.If you’re not completely satisfied, we’ll refund you — no questions asked. With our 30-day money-back guarantee and dedicated support, you have nothing to lose and a better environment to gain.
Overall rating: 4.4 / 5 from 170 reviews.
It works perfectly to block Bluetooth, I recommend it for annoying neighbors.
Shopper 5/5
It works perfectly, it just doesn't have much range, 15 meters without walls.
Shopper 5/5
Well, the truth is that it's very good, it works well, but you have to be careful with the micro switch and the power connection, it looks quite delicate, but it's fine and works perfectly. It comes completely assembled, just need to attach the antennas. Recommended seller, satisfied with the product. Stop selling it and move on, hahahaha.
Shopper 5/5
Very good, 10/10, arrived in just 9 days. Thank you very much.
D Z. 5/5
Works 100% thank you seller.
G O. 5/5
Bought this for my desk space and it has made my work area feel calmer and easier to control. I like that it does not take much space on my desk.
Grace D. 5/5 Verified
The PRO Max cooling Bundle is powerful, but the setup has more parts than I expected. It works, I just think beginners may need more guidance.
Liam T. 3/5 Verified
I picked the PRO Max cooling Bundle because I use it for longer focus blocks, and the cooling setup makes it feel more dependable. It feels practical for everyday use.
Sage U. 5/5 Verified
It arrived complete and works, but the box could be better organized for a premium bundle.
Leo R. 3/5 Verified
The device is compact, but the bundle feels powerful enough for a serious setup. The support response was helpful.
Harper I. 5/5 Verified
The antennas and included board arrived well packed. I had it powered by USB-C within a few minutes. Shipping was faster than expected.
Ryan X. 5/5 Verified
The support team answered my setup question quickly. After that, the PRO Max bundle worked exactly as expected. The box was a little plain, but the product was fine.
Mia Z. 4/5 Verified
When dealing with a chaotic environment, the first step is to make the problem visible. More stable for livestream demos.
Amy Y. 5/5
I am honestly tired of the noise upstairs. This need feels very real.
Vera C. 4/5
Noisy neighbors, restless roommates, interrupted work—these are all too familiar.
Chris P. 5/5
I am honestly tired of the noise upstairs. This need feels very real.
Eric Z. 4/5
It arrived complete and works, but the box could be better organized for a premium bundle.
Alex K. 3/5 Verified
The PRO Max setup stayed stable during a longer recording session. We used it to demonstrate signal strength changes in a Faraday enclosure, and the results were easy to explain. The thermal headroom use case was fine, and the hardware felt well made, but shipping took a bit longer than expected. I would recommend it for education and lab development.
Emma L. 3/5 Verified
The product works for longer sessions, but the price is higher than I expected. I would still recommend it if you need the full kit.
Lucas B. 3/5 Verified
My home is too noisy. At least this gives me a way to explain the problem clearly.
Amy K. 3/5
The cooling bundle was useful because our demo ran for a few hours. We used it for a business training clip about wireless troubleshooting, not for real-world disruption. It made our stable under longer demos workflow smoother, the hardware felt well made, and the results were easy to explain. I would buy it again for another classroom bench.
Logan A. 5/5 Verified
It is so visual for filming. No exaggerated acting needed—the audience gets it right away.
Rita W. 5/5
I used it for a classroom demo, and the students finally saw how complex a signal environment can be. More stable for livestream demos.
Evan T. 5/5
Good bundle overall, but I wish the quick-start guide explained the cooling part in more detail.
Chris O. 3/5 Verified
My roommate did not understand why others need quiet. After the demo, he went silent. More stable for livestream demos.
Evan L. 5/5
The cooling kit is the main reason I chose the Max bundle. It gave our development team a quick way to compare Bluetooth modules in a closed bench environment. It made our video shoot workflow smoother, it was compact enough for a bench, and the results were easy to explain. Overall, it was exactly what I needed for a responsible demo.
Mia P. 5/5 Verified
The cooling kit is the main reason I chose the Max bundle. I tried it after dealing with distracting office noise, but the actual use was a controlled lab demonstration. The thermal headroom use case was fine, and the hardware felt well made, but I wish the manual had more diagrams. It made the lesson more visual and easier to review.
Owen A. 3/5 Verified
The cooling bundle was useful because our demo ran for a few hours. We used it for a business training clip about wireless troubleshooting, not for real-world disruption. For our cooling kit setup, the hardware felt well made. My only complaint is that it needs careful setup. I would buy it again for another classroom bench.
Avery F. 4/5 Verified
This kit made me feel for the first time that quiet is also a real need.
Amy W. 5/5
I like that it feels built for longer use. It stays stable and does not feel like a toy. I appreciate the compact size.
Ella T. 5/5 Verified
The PRO Max setup stayed stable during a longer recording session. It helped my students understand why devices need careful spacing and proper shielding during wireless tests. For our extended runtime setup, it was compact enough for a bench. My only complaint is that the website could add more tutorial videos. Good value for a controlled testing setup.
Sophia C. 4/5 Verified
The PRO Max setup stayed stable during a longer recording session. It gave our development team a quick way to compare Bluetooth modules in a closed bench environment. It made our multi-hour lab workflow smoother, it was compact enough for a bench, and the results were easy to explain. Overall, it was exactly what I needed for a responsible demo.
Isabella U. 5/5 Verified
The PRO Max cooling Bundle is powerful, but the setup has more parts than I expected. It works, I just think beginners may need more guidance.
Taylor J. 3/5 Verified
It attracts attention in compliant demo settings, and investors should be able to understand the demand. More stable for livestream demos.
Leo Z. 4/5
The PRO Max setup stayed stable during a longer recording session. I used it to stage a funny scene about annoying background noise while keeping the actual experiment isolated. It made our video shoot workflow smoother, it was compact enough for a bench, and the results were easy to explain. The kit helped us keep the experiment organized.
Rowan D. 5/5 Verified
The PRO Max setup stayed stable during a longer recording session. I tried it after dealing with distracting office noise, but the actual use was a controlled lab demonstration. It made our busy workshop workflow smoother, the hardware felt well made, and the results were easy to explain. It made the lesson more visual and easier to review.
Avery O. 5/5 Verified
I picked the PRO Max cooling Bundle because I use it for longer focus blocks, and the cooling setup makes it feel more dependable. I like that it does not take much space on my desk.
Henry T. 5/5 Verified
The antennas and included board arrived well packed. I had it powered by USB-C within a few minutes. I use it mostly during work hours and it fits my routine.
Reese C. 5/5 Verified
One side is technology, the other side is a real-life pain point. The combination feels natural.
Max T. 3/5
The mix of tech feeling and everyday pain points works well. It is not an empty concept.
Alex Q. 5/5