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The Phi 1 is the entry point to Blushield’s portable range: lightweight and easy to take on everyday outings or longer trips. Designed to accompany a home unit, it gives you a portable option while you’re away from your stationary setup.
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3m (9.8ft) radius
For use while out and about, during travel between stationary protected zones
All EMFs including wide band 5G exposure for use between protected zones
ABS plastic
3.5 x 1.375 x .375
Phi Series Phi 1 Portable

Features
Accessories Included:
None
Approximate Battery Life:
3 days
Approximate Charge Time:
1.5 hours
Case Materials:
ABS plastic
Coverage:
3m (9.8ft) radius
Power:
350 mAh Battery
Recommended Usage:
For use while out and about, during travel between stationary protected zones
Safety Certificates:
FCC, CE, Ctick, RoHS
Size (inches):
3.5 x 1.375 x .375
Voltage Range:
3.7V
Weight (ounces):
1.23
The newly updated Phi 1 Portable produces an optimized multi band scalar field for use on the go, alongside a home unit as your primary setup.
The Phi 1 has a durable and lightweight black ABS plastic case with a triangular, reinforced hole, which you can use to attach a lanyard, chain or string (not included) for ease of carry. The equipped 350 mAH battery provides approximately 3 days of continuous use between charges.
This portable does not come with a charging cord. Charging cables are everywhere these days, so this portable is designed to work with any USB-C charger, whether it is a fast charger or not. Rather than adding another cord to your junk drawer, the portable comes without a charging cord. If you want a charging cord to come with your new portable, add one of our affordable options to your cart. We have curated ultra durable charging cords that are sure to work, in a variety of colors for you to choose from.
For information on charging and proper operation, check out our Quick Start Guide page.


Our Phi 1 Portable emits a multi band scalar signal, where multiple frequency sets are produced that operate in tandem. You will notice that your Phi 1 emits a solid green light most of the time, but every half minute or so, the light will turn off for a couple of seconds. This on-off pattern is intentional and part of how the device works. When the battery is low, the light turns solid red and the device will power down shortly after if not recharged. While charging, the light flashes red, and it turns solid green once fully charged.
Extend the life of your Phi 1 Portable with our custom carbon black pouch. These pouches add extra functionality and protect your device from scratches, drops, and debris.
Our multi band home and portable models are designed for higher-EMF environments, such as close-range 5G.
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Real stories from people who use Blushield at home, at work and on the go.
Frequently asked questions
Invisible signals are part of modern life. Blushield works quietly in the background at home, at work and on the go, with no setup or maintenance.
It doesn't block or shield EMF. Instead, Blushield is designed to support the body's natural response to everyday electromagnetic exposure. By focusing on biological support rather than altering environmental signals, it takes a different approach to EMF protection.
Plug-in units (Premium, Ultimate, Phi) cover your home. Portables cover you when you leave it. Most people start with one of each: a plug-in for the house and a portable for travel, work, and the car. If you're not sure, use our Find Your Device tool or message us.
30-day limited money-back guarantee on every device (restocking fee applies - see our full return policy). Stationary and portable units carry a 1-year warranty. If anything extends past that, contact us.
Many customers still choose to use one. EMF meters measure field intensity at a single moment, and everyday sources such as Wi-Fi, Bluetooth, smart meters, cell towers and nearby homes are present around the clock. Blushield runs continuously, whatever a meter reads.
Experiences vary from person to person. Some customers tell us they notice a difference quickly, while others find it becomes a quiet part of their routine over a few weeks. Blushield is not a medical device and is not intended to diagnose, treat, cure or prevent any condition.
Yes. Blushield is built on decades of research into how the body responds to coherent vs. incoherent electromagnetic signals. We have independent studies, HRV data, and live-blood analyses on our Science page. We don't make medical claims. We point you to the data and let you decide.
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