Turn Weak Signal Into Reliable Connection

The first and only portable MagSafe-compatible signal booster and power bank designed for wherever life takes you.

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Over $72,000+ total funded by 582 backers on Indiegogo

LOST CONNECTION? NO POWER?

Dropped Calls Shouldn't Derail Your Day

Missed calls during work meetings. No bars when you’re stranded roadside. A dead battery when you’re far from help. Weak signal disrupts your work, limits where you can go, and leaves you vulnerable when it matters most.

ENHANCE SIGNAL. BOOST BATTERY.

Built for the Off-Grid, On-the-Go, and Always-On

From your basement to the backcountry, mJoose Lynx keeps you connected when it matters most.

  • First and only MagSafe-compatible signal booster
  • CES Innovation Awards winner
  • FCC-approved
  • Apple certified
  • Works across U.S., Canada, and Mexico
Back on Indiegogo

Over $72,000+ total funded by 582 backers on Indiegogo

Made For All Carriers

Supports Major Devices

Performance You Can Measure

Proven signal boosting backed by FCC certification and 11 U.S. patents.

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stronger reception (10-20 dB boost)

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faster charging for quick top-offs when you need them

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reduction of radiation through improved signal efficiency

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more battery life so you stay powered longer

FEATURES

Professional-Grade Tech. Pocket-Sized Design.

Everything you need to stay connected, built into one compact device.

Boost Weak Signal

Amplifies cell signal by 10–20 dB, helping you maintain calls, texts, and data in low-coverage areas.

Extend Battery Life

Built-in power bank increases your phone's runtime so you're not choosing between connectivity and charge.

Reduce Radiation

Cuts radiation exposure up to 70% by improving signal efficiency and reducing transmission power.

HOW IT WORKS

Snap On. Power Up. Go.

Forget complicated setup. With MagSafe alignment, you snap on and instantly boost your signal.

1. Attach

Snap mJoose Lynx onto the back of your iPhone or MagSafe-compatible case.

2. Boost

Patented signal-amplifying technology strengthens weak signals automatically.

3. Thrive

Stay connected wherever you live, work, drive, or explore.

TESTIMONIALS

Connection Worth Counting On

"I purchased this item so I could get a signal in the new office I work in. Although, it did not boost enough for me to have a signal (I had to switch carriers) being able to charge my phone without a cord while I'm out was convenient. But once I switched carriers I could get 1 bar without the MJOOSE. When I used the boost feature on MJOOSE I get 4 bars. Very nice. FYI: I had Verizon for many years and was always able to get a signal not matter where I was except in this office. However, I switched over to T-Mobile and now I get signal everywhere and the cost is a lot less!"
Amazon Customer
"I purchased this case as a last attempt to get cellular signal at locations with poor signal strength. This case works as advertised. I can get much better signal in low signal locations. In addition, the battery life and charging capabilities of the case are a nice feature. I used to have to supplemental charge my phone while in the car, which is no longer necessary. For what I needed, this case is doing the trick. The case is a little pricey, but for me worth it."
vettenet - Amazon Review
"I was a bit reluctant to try this case out to see if it could boost the signal on my iPhone SE2020. I mostly work from home and barely have any reception and needed something to help boost the signal on my phone. I looked into signal boosters but you need to install an antenna on your roof and they are very expensive. This little cell phone case actually boosts my signal on my phone by 1-2 bars depending on where I am in my house and I’m now able to make calls without dropping. I’m on the phone a lot and use the case’s battery charger because it charges my phone really fast. "
Jennie - Amazon Review
"This works really well! I have an iPhone se 2020... after the iOS 14 update my phones battery was draining in a huge way...the j moose was charging my iPhone 2-4 xs a day... it works flawlessly and I always had the battery life I needed to run my business... I used the boost a couple times in areas I knew where bad and I had good service...the case isn’t too bulky and it’s not a slick case... it has a good grip to it... this is a must buy if you need a battery boost.. would definitely buy again!"
Jacqueline Evans - Amazon Review
"I work at conferences and special events in hotel and convention center posting to social media and connecting with the media for interviews. Many hotel venues have areas where the signal coverage is really poor which makes my job difficult. Just tested the mJoose case and was able to post where I couldn’t! And the battery helps me with the long days when I can’t plug in. Am intrigued by turning on the signal and testing the signal strength with and without the case. When you turn on the “joose” switch I can see the improved signal connection. Similar to many mini-USB connectors i.e. wireless speakers, I needed to jiggle it a little to connect when recharging, but the charging lights are very clear on when it’s charging and charged so a non-issue. Having both the signal and battery in one case is brilliant and very helpful. It's also very lightweight and well designed. Glad to have found this case!"
Ruth Doering - Amazon Review
"I was searching for a signal amplifier for my iPhone 7. Most of the ones I found were the kind that stays put, and has a limited range, but then I saw the mjoose. Versatile- it is a signal amplifier AND a power bank AND a protective case (but not for the screen) so it goes everywhere with me. Amazing, and I can talk to my mother, who is hard of hearing. All of this for the lowest price of any of the products I examined. I have had it for 14 months, and my only problem was that the charger cable broke. I emailed Customer Service, and they sent me two new ones, for free! It is so important to have access to a signal for your iPhone in case of an emergency, among many other reasons. I highly recommend the mjoose."
Susan A. - Amazon Review
"I’m in sales and need to be able to talk to customers while driving without dropping calls. I looked into signal boosters for cars and this seems to be the only one that doesn’t require an antenna on top of the car with a cable attached to a booster inside the car. Plus, it only costs about $100 and the other car signal boosters cost over $300. I have an iPhone SE2020 and when I turn on the case signal amp switch I usually get 1 -2 more bars. I’ll still drop a call once in a while but for the most part it keeps me connected. The battery charger works really fast when my phone’s battery runs low."
H Giang - Amazon Review
FAQs

Frequently Asked Questions

Questions about setup, compatibility, or performance? Find your answers here.

Lynx Supports 3G,4G LTE, and 5G bands for the North American market. This includes bands 2, 4, 5, 12, 13, 17, 25, 26, and 66 for carrier compatibility across AT&T, Verizon, T-Mobile, Boost Mobile and most North American networks. Compatible with major carriers and compatible and with StarLink 1900 Mhz satellite signals, Lynx delivers seamless connectivity across diverse scenarios, enhancing user productivity and safety with an exceptional integrated solution

Visit www.mjoose.com/support or email support@mjoose.com.

30 Day money back guaranty and a 1-year limited warranty covering materials and workmanship.

Includes Lynx, USB-C charging cable, and quick-start guide.

No. The current model is compatible with 3G,4G LTE, and 5G networks in North America.

The Technology is FCC, IC, CE, and IFTL compliant; Apple MFi certified; UL battery safety tested.

Yes, the Lynx Technology is Apple MFi certified for full compatibility with iOS devices.

Yes. Lynx uses UL-certified, high-grade Li-Polymer cells with overcharge and short- circuit protection.

About 1.0 hours using a Qi2 15W+ USB-C PD wireless charger.

Use any USB-C or MagSafe charger. Lynx supports pass-through charging so your phone and booster charge together.

Yes. It's engineered for better performance in buildings, vehicles, and low-coverage areas.

No. Lynx actually reduces SAR by improving signal efficiency and redirecting the radiated signals. The technology is FCC (USA), IC (Canada), IFTEL (Mexico) and Apple MFi certified.

The integrated high-density battery adds an additional 60–100% charge depending on phone model.

mJoose is compatible with iPhone 10-17 (including Pro and Max versions), Samsung Galaxy S20-S25 series, and Google Pixel phones. It works with all major carriers across the U.S., Canada, and Mexico.

The current mJoose Lynx model is compatible with iPhone 8 through iPhone 17 (including Pro and Pro Max versions), as well as Samsung Galaxy models S20 to S25. It attaches magnetically via MagSafe.

No. Lynx works automatically—no app, setup, or subscription required.

Lynx is a revolutionary MagSafe-attachable smartphone accessory that combines a cellular signal amplifier, extra battery, and MagSafe charger—all in one sleek device. It boosts weak cellular signals, extends battery life, and improves connectivity. All while reducing RF cellular radiation by an average of 70%.

Lynx is a revolutionary MagSafe-attachable smartphone accessory that combines a cellular signal amplifier, extra battery, and MagSafe charger—all in one sleek device. It boosts weak cellular signals, extends battery life, and improves connectivity. All while reducing RF cellular radiation by an average of 70%.

At this time, mJoose works in North America.

mJoose is compatible with Samsung S20-S25.

This ships....

mJoose is the first MagSafe-compatible signal booster that combines signal amplification and battery extension in one portable device. Most boosters require installation, cables, and external antennas. mJoose snaps on and goes with you.

Yes. mJoose is FCC-approved and Apple-certified, meaning it's fully compliant with federal regulations and safe to use with all major carriers.

mJoose doubles your phone's battery life and charges 2.5x faster with MagSafe wireless charging.

No. Just snap mJoose onto your iPhone or MagSafe-compatible case and you're ready to go. No cables, no external antennas, no setup required.

STAY CONNECTED

Better Signal Starts Here

Stop losing calls, missing pickups, and working around dead zones. Get reliable signal everywhere.

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