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Signal-Boosting Smartphone Cases

MoJoose is a California-based technology startup that has created the mJoose case, a 4-in-1 smartphone case that can boost your cell signal, charge your phone’s battery, reduce the radiation emitted from the device, and protect your phone. Amplify your cell signal, decrease dead zones, and extend your phone’s battery life by up to 100%. The mJoose case has completed an initial pilot launch and MoJoose is working towards an official commercial launch for the product.

This Reg CF offering is made available through StartEngine Capital, LLC. This investment is speculative, illiquid, and involves a high degree of risk, including the possible loss of your entire investment.

$134,778.09 Raised


The mJoose case is FCC-approved, Apple MFi-certified ("Made for iPhone"), and has won six CES Innovation awards.

In 2022, there are over 6.6 billion smartphone users, making the smartphone market one of the largest addressable markets in the world at a value of $448B.*

MoJoose has secured 10 patents for its breakthrough technology and is led by a world-class team of experts in Global Operations and High Volume Manufacturing, with deep experience in Wireless Technology and Consumer Electronics.

*Market information provided by Statista (source, source)

Always Be Connected - Any Time, Any Place, Anywhere

At MoJoose, we have a commitment to providing our customers with cutting-edge technology at an affordable price. Our flagship product, the mJoose case, is a patented, all-in-one smartphone case that amplifies your smartphone’s signal and extends its battery life. mJoose was designed to deliver better cell service, decrease dead zones, and provide up to 100% mobile charging. In addition, cell phones using the mJoose case have been proven to reduce RF Radiation by up to 70%.

*Product shown is the mJoose case sold during pilot launch.

mJoose is FCC-approved, MFi-certified ("Made for iPhone"), and has won six CES Innovation awards for its technology. After a pilot launch on Amazon and other eCommerce sites* where we sold over 3,000 units with very little marketing spend, MoJoose is ready to capitalize on the great traction the product has seen as we officially start taking the mJoose case to market. 

*Pilot launch was active from 2016-2020

The Problem

With 5G Imminent, Higher Signal Speeds Will Reduce Signal Strength

Anyone who owns a smartphone has experienced the frustration of having a weak signal or a dropped call. Whether it’s a parking garage, subway, remote area, or just a home residence with poor reception, dropped calls and slow data speeds are a nuisance that plague smartphone owners every day.


Not to mention, as the 5G cell network technology matures, smartphone users may find having a reliable cell signal to be difficult in parts of the country with limited access to 5G cell towers. While many will see an increase to the speed with which their smartphone receives data when receiving good cell service, 5G's shorter wavelength frequencies will require more dedicated cell signal infrastructure to maintain a strong cell signal. (source)

The Solution

An All-in-One Smartphone Case That Amplifies Your Cell Signal

The mJoose case features built-in signal-amplifying technology that delivers a more reliable cellular connection with every call. Embedded into the phone case itself, our design team engineered a way to include a commercial-grade signal enhancer system into the form factor of a snug-fitting case that works in harmony with the phone.

*Product shown is the mJoose case sold during pilot launch.

To achieve this signal boost, the mJoose case receives a low level cellular downlink signal from the cell tower through its passive receive antenna and amplifies that signal with a very low power, low noise amplifier (LNA). This now-amplified signal is then wirelessly coupled to the phone’s internal antenna. The product does not transmit cellular signals back to the cell tower.

So how does the mJoose case reduce radiation? When your smartphone receives a signal from a cell tower, the tower's connection starts to provide a specific direction (referred to as a “handshake”) to your smartphone's hardware so the phone knows how much uplink cellular power needs to be expended for the communication to take place. It is that power expenditure that has been cited as the primary source of radiation to the body from smartphones. The patented technology inside the mJoose case redirects the signal and radiation away from the body. The mJoose case has been proven via third-party SAR testing to reduce RF radiation by an average of 70%.  

*Product shown is the mJoose case sold during pilot launch.

In addition to these safety and reliability benefits, the mJoose case also has a built-in 2500 mAh battery extender. Functional with both iPhone or Android devices, users can add an extra 100% of battery life to their phone, all at a speed 2.5x faster than traditional charging via wall outlets.

*Product shown is the mJoose case sold during pilot launch.

The Market

An Addressable Market of More than 6.6 Billion Smartphone Users

With over 6.6 billion smartphone users worldwide, mJoose has the potential to disrupt one of the largest addressable markets in the world. As the number of smartphone users continues to rise, that growth is also mirrored in the smartphone case market. Globally, the smartphone battery case market had an estimated value of $5.4 billion in 2020, and is projected to reach $9.7 billion by 2027.


The mJoose case was designed with universal application in mind, and as such, it can work on virtually all smartphones. This device agnostic approach gives us further flexibility to tackle this multi-billion dollar industry.

Further still, as more countries begin to implement 5G, MoJoose plans to capitalize on these international markets with our breakthrough, proprietary technology.

Our Traction

FCC-Approved, Apple MFi-Certified, and Winner of 6 CES Innovation Awards

We couldn’t be more excited about the early traction the mJoose case has received. To date, we have raised over $7 million and have completed technology development, regulatory certifications, and have even received Apple’s MFi ("Made for iPhone") certification. This certification is particularly notable, as this means Apple has authorized MoJoose to produce officially recognized third-party accessories for their devices after a strict series of tests and requirements to assess eligibility.

*Product shown is the mJoose case sold during pilot launch.

MoJoose holds a strong portfolio of IP, with 10 granted patents and one pending patent for our breakthrough mJoose technology. We have also won six CES Innovation Awards, an annual competition honoring outstanding design and engineering in consumer technology products.

We have already sold over 3,000 mJoose units and generated over $300,000 in revenue through a pilot launch on Amazon and other eCommerce sites* - all with very little marketing spend. Our product has garnered a slew of fantastic reviews from our initial Amazon customers, and we have also received great feedback from notable publications such as CNET and Huffington Post

*Pilot launch was active from 2016-2020

During the course of this pilot launch, we were able to develop the offshore manufacturing needed for our official commercial release. After a lengthy testing & certification process and following some setbacks at the beginning of the COVID-19 pandemic, MoJoose is now expecting an official launch of the mJoose case following the close of this campaign.

Why Invest

MoJoose is Creating Cutting-Edge Cell Technology

Our mission at MoJoose is to give users a smartphone case that elevates the phone it protects. We feel we have accomplished that with our cutting-edge mJoose case that can protect your phone, significantly amplify its cell signal, charge its battery, and reduce the radiation it emits. With utility across virtually all smartphones, we believe we are poised to capitalize on the multi-billion dollar smartphone and smartphone accessory markets.

Ahead of the official commercial launch of mJoose, we are allowing the StartEngine community to join us on the journey. Invest today in MoJoose as we seek to make a big impact with our disruptive technology.

*Product shown is the mJoose case sold during pilot launch.


65 Enterprise
Aliso Viejo, CA 92656

MoJoose is a California-based technology startup that has created the mJoose case, a 4-in-1 smartphone case that can boost your cell signal, charge your phone’s battery, reduce the radiation emitted from the device, and protect your phone. Amplify your cell signal, decrease dead zones, and extend your phone’s battery life by up to 100%. The mJoose case has completed an initial pilot launch and MoJoose is working towards an official commercial launch for the product.


Daniel Ash
Daniel Ash
President & CEO, Board Member
Daniel, the founder of mJoose, is an entrepreneur, technology innovator, disruptive thinker and an accomplished leader with experience in growing and successfully managing international businesses. He has an innate passion for cellular wireless and smartphone technology and mJoose sits right at the crosshairs of the two. 

Daniel has over 35 years of RF engineering and executive management experience. His career started with RF microwave defense electronics, then cell phone handsets and cell tower technology -- all areas instrumental to the underlying technology developed at mJoose.

Robert Legendre

Robert Legendre

COO, Board Member

Senior Executive with 35 years of Leadership in International Supply Chain & Operations. Specialization in Operations Consolidation and Management for Multi-National Corporations.

Specialties: Global Supply Chain & Logistics Operations Management. Extensive experience in Strategic Planning, Production Operations, Contract Manufacturing, New Initiatives, Procurement, Imports/Exports, Supplier Development with leading organizations. Large & small-scale Global Mergers & Acquisitions experience.

Jeremy Monroe

Jeremy Monroe

VP Engineering

Jeremy has over 25-years of RF signal amplification design and production experience. He was a principal electrical engineer for Powerwave Technologies, Inc., responsible for a large RF signal development team and the lead designer for low loss amplifiers. He was also responsible for investigating all new amplifier technologies and presenting findings to management for feasibility
Nikolai Maslennikov PhD

Nikolai Maslennikov PhD

Scientist and Sr. Principal Engineer

Nikolai has more than 40 years of research and development (R&D) engineering experience in the field of RF devices design, optimization and measurements. Specifically he has in-depth knowledge in designing RF power amplifiers and low noise amplifiers. He has been awarded over 20 U.S. patents in the RF cellular field. Nikolai holds a Ph.D. from Moscow Univerisity where he majored in “Radio Physics including Quatum”   
Mai Le

Mai Le

Project Manager Off-Shore Manufacturing

Mai has more than 15 years of experience successfully transferring engineering projects into high-volume, off-shore contract manufacturing locations. Mai has also led global supply chain, purchasing and production projects in the wireless technology industry prior to joining mJoose.  
Christine Schumacher

Christine Schumacher

Director Business Administion

Christine has more than 20 years of experience in the areas of executive branch management, project management of global programs, human resources, organizational development and business administration. The past thirteen years of experience has been in the wireless technology industry including Powerwave Technologies, CelLynx Group, Inc. and Mobile Joose.  
Eugene Ren PhD.

Eugene Ren PhD.

Advisor, Sr. Antenna Engineer

Eugene brings his R&D and engineering experience in RF and radiation systems to the company. Prior to working with mJoose, Eugene was a senior engineer of Microsoft/Nokia leading production and development of tablets and antenna technologies per FCC regulations and requirements of telecommunication carriers. He was the Principal Investigator of several DOD/NIST sponsored programs for advanced electromagnetic and radar system applications. Eugene holds a Ph.D. from Texas A&M University, College Station and is a senior member of IEEE.
Ruth Doering

Ruth Doering

Sr. Director of Marketing

Ruth is a technology marketing communications executive with 30 years of agency and business start-up experience. Specializes in achieving target KPIs with limited integrated marketing budgets.

-- Partner, The Gandalf Group

-- Co-founded and sold Crescent Communications to Ketchum PR

-- Served as associate director for Ketchum PR's $30M global technology practice

-- Wrote and secured 15 CES Innovations Awards

-- Spearheaded many successful product launches, PR and social media campaigns

Deena Ghazarian

Deena Ghazarian

Advisor, Sales and Marketing

C-Suite Executive, Global Sales & Marketing Channel Expert, Executive Board Member, Powerful Woman in Consumer Technology, INC. 5000: Fastest-Growing Private Companies In America, Dealerscope 40 Under 40.

Deena is a dynamic, entrepreneurial global sales executive with a 20-year record of achievement and demonstrated success driving multi-million dollar sales growth while providing award-winning sales leadership

Expert in global consumer electronics sales model and vast knowledge of the channel

Scott Hix

Scott Hix

Advisor, Sales and Marketing

Senior executive with extensive CEO, General Management and Business Development experience in the high-tech industry. Strong record of successfully launching and managing global high growth businesses in both the consumer and commercial markets. Currently Co-founder and Managing Partner of TargetPath (Management Consultancy), Co-founder, CEO and Board Member of Avocor (Commercial Display), Board Member of Agile Displays (Commercial Display), Board Member of FIIL Audio and Lumaglo (Consumer Electronics).
Howard Ho Yin Chan

Howard Ho Yin Chan

Board Member

Howard Chan has been a director of Mojoose Inc. since 2015. Howard has over 25 years experience in IT and electronic industries, served in roles in engineering, operations, finance and management. He also served on the boards of directors of various companies in Japan, Hong Kong, Southeast Asia and North America.

Barrett Laban Silver

Barrett Laban Silver

Board Member

Barrett Silver is a senior executive with extensive Investment and Business Development experience. He also served on the boards of directors of various companies. 


Feb. 9, 2023 at 7:59 AM UTC
$10k - $1.23M
Preferred Stock
Series A-1 Preferred Stock

Maximum Number of Shares Offered subject to adjustment for bonus shares

*Maximum number of shares offered subject to adjustment for bonus shares. See Bonus info below.



Friends and Family Early Birds

Invest within the first week and receive 20% bonus shares

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Invest within two weeks and receive 15% bonus shares

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Invest within three weeks and receive 10% bonus shares


Tier 1 | $500

50% off of case purchase of your choice with discount code (when available)

Tier 2 | $1,000+

100% off of case purchase of your choice with discount code (when available) 

Tier 3 | $2,500+

100% off of case purchase of your choice with discount code (when available) + 5% bonus shares

Tier 4 |$5,000+

100% off of case purchase of your choice with discount code (when available) + 10% bonus shares

Tier 5 |$10,000+

100% off of 2 cases of your choice with 2 discount codes (when available) + 15% bonus shares

Tier 6 |$20,000+

100% off of 4 cases of your choice with 4 discount codes (when available) + 20% bonus shares

*In order to receive perks from an investment, one must submit a single investment in the same offering that meets the minimum perk requirement. Bonus shares from perks will not be granted if an investor submits multiple investments that, when combined, meet the perk requirement. All perks occur when the offering is completed.

The 10% StartEngine Owners' Bonus

Mojoose, Inc. will offer 10% additional bonus shares for all investments that are committed by investors that are eligible for the StartEngine Crowdfunding Inc. OWNer's bonus.

This means eligible StartEngine shareholders will receive a 10% bonus for any shares they purchase in this offering. For example, if you buy 100 shares of Series A-1 Preferred Stock at $2.89 / share, you will receive 110 shares Series A-1 Preferred Stock, meaning you'll own 110 shares for $289. Fractional shares will not be distributed and share bonuses will be determined by rounding down to the nearest whole share.

This 10% Bonus is only valid during the investors eligibility period. Investors eligible for this bonus will also have priority if they are on a waitlist to invest and the company surpasses its maximum funding goal. They will have the first opportunity to invest should room in the offering become available if prior investments are canceled or fail.

Investors will receive the highest single bonus they are eligible for among the bonuses based on the amount invested and time of offering elapsed (if any). Eligible investors will also receive the Owner’s Bonus in addition to the aforementioned bonus.

Irregular Use of Proceeds

The Company might incur Irregular Use of Proceeds that may include but are not limited to the following over $10,000: Vendor payments. Salary payments made to one’s self, a friend or relative.



Multiple investments in an offering cannot be combined to qualify for a larger campaign perk. Get rewarded for investing more into MoJoose.


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Owner’s Bonus Members earn 10% bonus shares on top of this and all eligible investments for an entire year. Not a member? Sign up at checkout ($275/year).



Brian Burns

6 months ago

Any updates on this? It's been months.



Michael Nadler

a year ago

Daniel, 2 big things I noticed- 1a) did you raise 2 mil or did the notes come due dec 2022? 1b) Mjoose doesn't have liquid assets to cover these notes... so now what- is Mjoose in default or in talks to settle this or? 2) What made you give up more than majority stake/50%? Seeing the viability of the patent portfolio and knowing ownership structure, are you focused more on being acquired/selling the ip portfolio or do you have another focus in mind for maximizing shareholder value and what is the timeline on reaching these milestones?



Michael Nadler

a year ago

Great idea, great product, and too good to not be knocked out. Surprised and not surprised that you've only raised $120k so far this round because of the fact that I believe you will be knocked off. How are you going to compete with this and protect your company and products? Very interested as an investor, and my only concern is protecting the companies growth amongst a vicious and competitive market that knocks off products left and right- the electronics/accessories markets. Can you speak to this? The more detailed analysis/explanation would help me get of this hurdle of future competition.



Dennis Arends

a year ago

Why it taking so long



Jeffrey Harvey

a year ago

when will you have case for the 12 mini



Daniel Tresca

a year ago

What are the licensing plans for the patents outside the initial product? How is MJoose exploring integration partnerships with Apple's & Amazon's home products, other company's security system connectivity, such as Start engine's Wigl where the patents are also driving sales and getting the product into the market faster that the phone products?



Nicholas D’Alessandro

a year ago

1. Knowing that it is early stages. What does a potential exit look like? 2. Are there any plans to go after licenses with professional sports leagues, etc. For example, MLB & have MLB team cases? Thank you!



Robert Dunn

a year ago

1. What is the case material? Does it offer protection for the phone in addition to the obvious features? 2. Will it be marketed directly or thru distribution? 3. Will the launch be available worldwide or US entry first? 4. I haven't seen any additional information other than what is on SE and MJ website. Does it have charge port access? 5. Does the case have an independent power source or does it use the phones battery for power and amplification? Or does it even require power to enable all the features? thank you 4.



Steven Larky

a year ago

What year(s) did you receive the CES Innovation Awards? Jeremy Monrow, listed as VP Engineering shows he was an employee of Mjoose back in 2016. Is he still an employee? Similarly, Robert Legendre, listed as COO shows he is 'officially retired' on his LinkedIn profile, not COO. Is he still an employee or just a board member?



John Hoogesteger

a year ago

The Amazon post shows compatibility with a limited number of phones. What plans are in place to accommodate all the different phones and sizes of those phones?




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