Michael K., 62
Chicago, IL
Verified Buyer
They tried to relay my car
“Two guys were on my driveway at 2 a.m. with a box. My new SUV almost unlocked. I ordered NullSignal the same morning. Now every fob in the house sleeps inside one.”
−50% SUMMER
1/10
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Bestseller 4.8 (24,000+)
NullSignal™ Faraday Bag
Your keys, phone and cards are broadcasting. Stop all three before someone else uses them.
Military-gradeLab-testedBlocks 5 signals
Blocks WiFi · GPS · 5G · Bluetooth · RFID.
$119.99$239.98SAVE 50%
Free tracked U.S. shipping · 90-day guarantee
Your −50% price is reserved — only left
SAVE 50%
×2
2 Bags — Buy 1 Get 1 Free$24.99/bag · free shipping
$49.99$99.98
×2
2 Bags — Buy 1 Get 1 Free$24.99/bag · free shipping
$49.99$99.98
SAVE 50%
×4
4 Bags — Buy 2 Get 2 Free$22.49/bag · free shipping
$89.99$179.98
×4
4 Bags — Buy 2 Get 2 Free$22.49/bag · free shipping
$89.99$179.98
SAVE 50%★ MOST POPULAR · BEST VALUE
×6
6 Bags — Buy 3 Get 3 Free$19.99/bag · free shipping
$119.99$239.98
$19FREE
×6
6 Bags — Buy 3 Get 3 Free$19.99/bag · free shipping
$119.99$239.98
One pouch, everything covered — car keys, access badges, phone, cards & more. Keep one in every bag, car & drawer.
FREE bonus: The Signal Safety Handbook (digital, instant)
SAVE 50%LOWEST PRICE PER BAG
×12
12 Bags — Buy 6 Get 6 Free$16.66/bag · free shipping
$199.99$399.98
$19FREE
×12
12 Bags — Buy 6 Get 6 Free$16.66/bag · free shipping
$199.99$399.98
Fleet & business pack — one pouch per vehicle, plus spares for the office key board.
FREE bonus: The Signal Safety Handbook (digital, instant)
Selling fast — 37 people are viewing this right now
90-day money-back Free U.S. shipping Secure checkout
4.8 · 24,000+ verified
“They tried to relay my car at 2 a.m. Ordered NullSignal the same morning.”
Michael K., 62 · Chicago · verified
“My phone finally goes off-grid. GPS, Bluetooth, cellular — all dead.”
Emma R., 43 · San Francisco · verified
“Stopped a card skimmer on the subway. Zero anxiety on crowded platforms.”
Ryan M., 37 · New York · verifiedWhy 24,000+ people trust NullSignal
- Stops the silent theft method that leaves no broken glass and no evidence — seal your fob, kill the signal thieves copy.
- Protects everything with a signal — car keys, phone, contactless cards, access badges. RFID, GPS and Bluetooth go dark the second you seal the flap.
- Removes the signal thieves need — no app, no batteries, no monthly fee. One simple action at night.
- Peace of mind for the whole household — fits phone + fobs + cards, 8.3 × 4.9 in, bonus storage pocket.
Yes. Once sealed inside, NullSignal blocks WiFi, GPS, cellular / 5G, Bluetooth and RFID/NFC. Nothing gets in or out until you open it. Your family’s keys, cards and phone are completely invisible.
The 6-pack, by a wide margin. Almost everyone counts more key sets than they expected once they look: two cars, a spare fob in a drawer, a partner set by another door, a first car at the grandparents. It works out cheapest per bag, it covers the whole household in one order, and the digital handbook is included free. One purchase protects every vehicle in the family.
Yes. A key fob sealed inside cannot be detected or relayed, so thieves have no signal to copy. This is the single most effective step a family can take to prevent relay car theft — it is what law enforcement recommends.
A full-width hook-and-loop flap. Press it shut across the whole opening and the shield is complete — no magnets, no snaps, nothing to wear out.
It fits virtually all modern smartphones plus one or two key fobs and a stack of cards (8.3 x 4.9 in / 21 x 12.5 cm).
Take the largest bundle and keep one pouch with every spare key. Vans, dealer plates and rental fobs sitting together in one room are the easiest target there is, because a single relay sweep reaches all of them at once. Need more than the biggest bundle? Message us from the contact page and we will sort the quantity out.
Dispatched within 1–3 business days, delivered in 5–12 business days with free U.S. tracking.
Every order is covered by a 90-day money-back guarantee. Not convinced? Send it back for a full refund. You risk nothing — we risk everything.
Lauren J.
Verified buyer
“I work in IT — I know how easy it is to track someone through their phone. Bought one for me, my husband and both kids the same day. Zero signal gets through. This is the real deal.”
Watch out for cheap replicas. Thin imitations use weak liners that leak signal within weeks. NullSignal uses a lab-tested, military-grade double-fold shielded design — guaranteed to block or your money back.
This is what you’re up against
Three silent attacks — one pouch stops them all
What you get
Military-grade shielding — built to actually block
- Dual-layer Faraday lining — blocks WiFi, GPS, 5G, Bluetooth & RFID
- Full-width hook-and-loop flap — seals the entire opening for a complete block every time
- Military-grade microfiber shell — leather-look finish, compact enough for any bag
- Fits phones + fobs + cards — 8.3 × 4.9 in (21 × 12.5 cm), bonus storage pocket
Inside the pouch
Three layers. That is the whole trick.
A pouch either closes the signal path completely or it does nothing. There is no in between, and that is exactly why the build matters more than the label on the front.
- 1Leather-look outer shellMicrofiber with a PU leather finish. It takes daily pocket and glovebox use without fraying at the fold.
- 2Conductive shielding layerThe working part. A metallised mesh that reflects and absorbs radio energy, so WiFi, GPS, 5G, Bluetooth and RFID have no path in or out.
- 3Soft inner linerProtects the shielding from your keys, and your screen from scratches. A shield that gets scratched stops shielding.
And the part most pouches get wrong: the flap folds over the full width and grips along the entire opening. A gap of a few millimetres at one corner is enough to leak a fob signal.
One pouch, everything covered
What NullSignal does for you
Stops relay car theft
Seal your key fob and thieves have no signal to copy — the car stays asleep.
Blocks card skimming
Cut RFID/NFC so contactless cards and passports can’t be read through your bag.
Kills GPS tracking
Drop your phone in and your location goes dark — no apps, no brokers, no trail.
Silences the noise
No calls, no pings, no temptation. Total quiet whenever you want to switch off.
Protects the whole family
Keep one in every car and bag — bundles make it cheap to cover everyone.
Safe to travel with
Just fabric and shielding — nothing electronic. Toss it in your carry-on.
Cover every car, bag and drawer.Bundles from $16.66/bag · free U.S. shipping · 90-day guarantee
Stop the signal tonight →
Our story
Built by a police officer and a cybersecurity engineer
One spent years watching families lose cars to a signal they never saw. The other spent 15 years breaking and securing those exact signals. They built the pouch they wished every household already owned.
The officer
Former police, vehicle & identity crime
“I took too many reports from families whose car vanished without a scratch. Relay theft is invisible — a Faraday pouch is the one thing I tell everyone to buy.”
The engineer
15 years in signals & hardware security
“We tested NullSignal against WiFi, GPS, 5G, Bluetooth and RFID and refused to ship it until it killed every one. A genuinely quality-made, military-grade shield.”
4.8average rating
out of 5
out of 5
2,000+pouches shipped
to U.S. homes
to U.S. homes
90daysto send it back
for a full refund
for a full refund
1pouchper set of keys,
cards or phone
cards or phone
Real people, real protection
See NullSignal in action
Be ready when it matters
The difference is night and day
Why NullSignal
NullSignal vs a cheap pouch
NullSignalCheap pouch
Blocks WiFi GPS & 5G
Blocks Bluetooth & RFID
Full-width hook-and-loop seal
Military-grade lined fabric
Lab-tested shielding
90-day money-back
The part nobody adds up
Protect your family — and keep the money
Every other answer to car theft is paid after something happens, or every single month. A pouch is paid once, and it works the night it arrives.
One theft, one time
What it costs you
Insurance deductible$500–$1,000
Higher premium after a claim+$300 / yr
What was inside the carClaimed separately
Aftermarket alarm, fitted$300–$500
GPS tracker + subscription$200 + monthly
Steering wheel lock$60–$120
Replacing cloned cardsDays of calls
Realistic first incident$1,000+
And nothing on this list stops it happening again next month.
NullSignal, once
What we cost you
Six pouches, one payment$119.99
Per set of keys$19.99
Monthly fee$0
Installation or wiringNone
Battery, app, accountNone
Keys, cards and phoneAll three
If it does not work for youRefunded
Total, ever$119.99
Bought once. No renewal, no subscription, nothing to forget.
The cheapest line on this page is the one that stops the theft.From $19.99 a pouch · free U.S. shipping · 90-day money-back guarantee
Choose my bundle →
Figures are typical U.S. market prices for the alternatives listed, shown for comparison. NullSignal is not insurance and does not replace it — it removes the signal a relay crew needs to copy, so the claim never starts.
Fleets, trades and larger households
More than two vehicles? Buy by the box.
The maths does not change when you have five vans instead of one car — it just gets more expensive to be wrong. One pouch lives with each spare key, and the keys stop broadcasting the moment the flap is shut.
- Trades and contractors — vans loaded overnight, keys on a board in the office.
- Dealers and rentals — dozens of fobs sitting in one room, all awake.
- Multi-driver families — two cars, teenagers, a spare set at the grandparents.
Why the big bundle wins
×2 pouches$24.99 / pouch
×4 pouches$22.49 / pouch
×6 pouches$19.99 / pouch
×12 pouches$16.66 / pouch
Every step down in unit price is money you keep. Covering a whole household or a small fleet in one order is the cheapest this ever gets.
Back to the bundles →4.8
24,000+ people trust NullSignal
Rachel D., 58
Washington, D.C.
Verified Buyer
Bought for the whole family
“I bought one for me, one for my husband, and two for my parents. After what happened to my cousin in Los Angeles, I wasn’t taking any chances with the family.”
David R., 67
Phoenix, AZ
Verified Buyer
No more stress
“I’m retired. I don’t need the stress of dealing with insurance and a missing car. One pouch by the door changed everything.”
Sarah L., 51
Atlanta, GA
Verified Buyer
Bought one for each car
“Two cars, two teenagers, four fobs. After a neighbor lost a Range Rover overnight with zero damage, I ordered the family pack the same day.”
James T., 64
Houston, TX
Verified Buyer
Thick, well made
“Tried a cheap pouch first. Signal still got through. This one kills it completely. You can feel the difference in quality.”
Silence every key in your house tonight.
Join thousands of families who decided not to wait until it was too late. Seal your key fob inside and try to open your car from the driveway. If it doesn’t kill the signal, return it within 90 days for a full refund.
Protect my family — 50% off →