Frequently Asked Questions - SLNT®

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FARADAY BAG FAQ

You’ve got questions, we’ve got answers. To better understand how Faraday bags work, please see the below frequently asked questions. Your mobile privacy, security and health depend on it.

Frequently Asked Questions

What is a Faraday Bag?

A Faraday bag is a signal blocking bag that kills wireless signals to and from your device. SLNT utilizes its patented Silent Pocket® construction and Multishield® Faraday fabric to create sleek Faraday Cages that encapsulate mobile devices like phones, tablets, key fobs and laptops from emitting or receiving any radio frequency. Thus making them mute from the digital world. This helps to ensure your device remains isolated and protected from wireless communication, enhancing privacy, security and health

What is a Faraday Cage?

The Faraday cage was invented by Michael Faraday in 1836. In layman's terms, it is an enclosed structure made of conductive materials, such as copper, silver or other metal that cancels electronic fields from entering or exiting. The Faraday cage is designed to block or prevent the entry or exit of electromagnetic fields for whatever is inside. Think man standing inside cage and the electric charge is not effecting him. By placing your device inside a Faraday Cage aka Faraday Bag (an adopted term for use with mobile devices) you instantly block all inbound and outbound wireless communication including Cellular, Bluetooth, WiFi, GPS, NFC, RFID, 5G, EMF radiation, and EMP protection.

What signals do Faraday Bags block?

Faraday Bags Instantly Block: Cellular, WiFi, Bluetooth, GPS, RFID, NFC, EMP, Satellite, Navigation, Solar Flare, and EMF Radiation

Get Technical:

Silent Pocket® with Multishield® (Faraday Shielding Material) is MIL‐STD‐188‐125‐2 compliant, and exceeds IEEE 299-2006 (1 - 40GHz) standards. (100,000:1 reduction, see testing page here)

Blocks 100 dB+ Cellular, WiFi, Bluetooth, GPS, RFID, NFC, EMP, and EMF Radiation
Blocks CDMA, GSM, DCS, PHS, 3G, 4G, 5G, LTE
Blocks WiFi (2.4 - 5 GHz), Bluetooth (2.4 GHz), and GPS (1-2 GHz)
Blocks RFID and NFC @ 13.56 MHz
Shields against EMP, HEMP, CME, Solar Flare, and static shock
Blocks Carrier, hardware, and OS agnostics

Why can't I just turn off my device?

Great question! Smartphones are never really "off" because you cannot remove the power source. In many cases, phones may still be active even though they appear to be turned off. We view this more as "dormant" state, it may still be able to harvest your data or report your location.

Slipping your phone into a Faraday bag creates an electromagnetic barrier between the phone and the Cellular, WiFi, GPS, Bluetooth, RFID networks. You're completely off the grid anywhere anytime!

Why should I be concerned about GPS tracking? Nobody is tracking me.

Quite the contrary, everyone and everything is following you and tracking your location. If you want to be able to go from point A to point B with no one the wiser (gov, corp, person) then utilizing a Faraday bag is the perfect solution.

Can I just use Aluminum Foil to block signals instead of a Faraday bag?

It can in some cases, but it is not effective enough to call a solution. It will fail in most environments from blocking wireless signals. Plus it looks like tinfoil and your $1000 smartphone deserves a little bit more style with a refined SLNT® product. Leave the tinfoil for the kitchen!

Do Faraday Bags block against EMF radiation?

Yes, Faraday bags can block electromagnetic radiation (EMR), including EMF radiation. The Multishield® shielding material used in our bags disrupt the electromagnetic waves, preventing them from passing through to your head or body.

What is the shielding material used in SLNT® Faraday Bags?

We utilize Multishield® material as the Faraday shielding material in our products. Multishield® is a durable, corrosion resistant and highly effective wireless shielding material that is MIL‐STD‐188‐125‐2 compliant, and exceeds IEEE 299-2006 (1 - 40GHz) standards. (100,000:1 reduction, see testing page here)

Do you have testing for your Faraday Bags?

We test all of our Faraday bags through third-party facilities and contractors, in house with our quality control process and in real world environments. Multishield is MIL‐STD‐188‐125‐2 compliant and exceeds IEEE 299-2006 (1 - 40GHz) standards for a 100,000:1 reduction. We take the functionality of our products as the top priority for the SLNT brand. If you would like to read more on the technical aspects of our testing please see below.

Download Keystone compliance testing reports [here](/content/pages/slnt-testing "https://slnt.com/pages/slnt-testing"/index.html).

Read about testing with FBI equipment such as the Spectrum analyzer [here](/content/blogs/news/do-faraday-bags-work-these-4-tests-reveal-the-truth "https://slnt.com/blogs/news/do-faraday-bags-work-these-4-tests-reveal-the-truth"/index.html).

Will a Faraday Bag drain my battery?

Not anymore! When we had flip phones operating on analog yes, your phone would constantly search for service draining your battery. But now your smart phone goes into hibernation since it is not being pinged by any signals. In fact, leaving your device inside for extended periods of time (ie. overnight or driving through variable signal environments) conserves battery life significantly.

Will my alarm work in a Faraday Bag?

Yes, your phone’s alarm will not be silenced and you'll still be able to use the functions of setting reminders on the internal time clock that is not reliant on cellular or wireless service.

Will a Faraday Bag damage my phone?

No, SLNT® products do not damage wireless devices.

Your service is temporarily interrupted in a passive way, and resumed in 10-20 seconds when the phone is taken out from inside the enclosed Faraday cage.

Can I listen to music from my phone while it is inside a Faraday Bag?

Yes! You can download music from your preferred music platform. These songs will be accessible while your phone is inside your Faraday bag without needing data (Cellular and WiFi).

Can I charge my device in a Faraday Bag?

Unfortunately you will not be able to use a wall charger while your device is inside a Faraday bag due to the cord disrupting the seal of the closure.

You will be able to use a portable charger inside a Faraday bag as long as it fits with your device and the Faraday bag is properly sealed.

Will I be able to go through airport security with a Faraday Bag? TSA approved?

Yes you can. All the SLNT products scan just like any other textile going through the X-ray machine and will not be flagged. Free to roam securely.

Can I use a Faraday Bag at night?

Yes, we encourage this! Nighttime is a great time to disconnect from your phone, bluelight and the feeling of being responsive to a device. By placing your phone inside a Faraday bag at night, you can instantly block all harmful radiation to your body/head and not be distracted by notifications.

By implementing a Faraday bag into your nightly routine ( unless you're on standby for children or need your phone) you can gain more restful sleep and still use your phones internal alarm if you choose.

Can I see missed calls, texts and notifications when my phone is in a Faraday bag?

When you remove your device from the Faraday bag and your phone regains service it will receive all missed data including texts, emails, voicemails, notifications, and alerts.

What is the price difference between USA and Berry?

The price variance stems from differences in manufacturing and material expenses. Our USA bags are not only manufactured in the US but also meet Berry and TAA compliance. This ensures that every aspect of the bag, from the material to the thread, is both sourced and produced within the US. This contrasts with some brands that might label themselves as 'USA made' but purchase materials from abroad. Our global production strategy allows us to offer a range of price options while ensuring the same high level of durability and signal-blocking performance.

Are Faraday bags illegal? Do they jam or emit RF signal?

No, SLNT® products are legal and do not emit wireless signal to jam radios. This is a passive shielding technology that allows anyone to hide their devices from the digital world.

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