FCC ID: 2BFIZ-DX3 Formuler DX3

157g 76x130mm Safety Instructions Package List Overview Remote Control Getting Started Cleaning Method Homepage status bar icon Read all instructions before you use this device. Do not make any changes or create settings that are not described in this manual. If physical damage, loss of data or damage is caused by failure to follow instructions, the warranty does not apply. 1. To reduce the risk of fire or electric shock, do not expose the device to rain or moisture. Objects filled with liquids, such as vases, should not be placed on this device. 2. Do not place this device on soft surfaces such as tablecloths or carpets, otherwise the device could be a fire hazard. 3. Do not place this device in areas susceptible to excessive dust and dirt or near any appliance generating a strong magnetic field. 4. To prevent overheating, do not block or clog the ventilation holes. 5. Never place this device in a confined space. Always leave enough space around this device for ventilation. 6. Protect this device from overexposure to direct sunlight, heat, large temperature fluctuations and moisture. Avoid extreme temperatures. 7. When this device is running for a long period of time, the surface may become hot. Shut it down immediately and unplug the charger. Resume operation after this device has cooled down. 8. Always handle this device with care. Avoid touching the lens. Do not allow children to handle the device without supervision. 9. Use attachments or accessories specified by the manufacturer only. 10. Avoid extreme vibration as it may damage the internal components. User Manual Projector 1 Remote Control 1

(Batteries are not included) On / Off IR receiver HDMl lnput 3.5mm Stereo Jack USB Input IR receiver Power Socket Power Switch Focus OK Left Menu Return Volume -

Mute Switch to mouse control Up Right Down Home Volume +

Power Cable 1 HDMI Cable 1 Projector User Manual 1 Clean Tool 1 Tips:

1. Blurry Image Go to Settings - Projection Settings - Auto Four Keystone Correction - Turn on the Auto Four Keystone Correction or enter Manual Keystone to adjust the image. Press the focus button on remote control to get the best clarity. 2. Mounting Hole Adopting a single mounting hole dual-use design, the projector is compatible with the standard camera tripod and 1/4 inch screw projector tripod stand. Attention:

1. Do not submerge the remote control in the water. 2. Do not put the remote control near fire or in wet or hot places. 3. Do not use old and new batteries together in the remote control. 4. Please take the batteries out if not using the remote control for a long time to avoid battery leakage. 5. Please point the remote control toward the IR receiver. 6. Please use the remote control within 6 meters distance and 30 degree angle. Use the manual focus by pressing the "Focus" button on the remote control. Tips:

Make sure the projector is horizontal to the projector screen. 1. Get the screwdriver ready, unscrew the screws. Clear memory shortcut. When the system is stuck or too many applications are opened, click this icon, the background can be cleared. Wallpaper shortcut. Support to change the background picture. Bluetooth shortcut. Turn to Bluetooth settings. Network shortcut. Turn to network settings. Plug the power cable to the projector. Press power button to turn on the projector. 2. Clean the projector by the cotton swab. Network Setting Settings - Network Settings- WiFi Switch > Turn on WiFi Switch. Choose the network and type the password that you want to connect to. File Management Insert the U disk, click the FileManager icon on the homepage. The content of U disk could be read, such as video, audio, picture, etc. Bluetooth Setting Settings - Bluetooth- Bluetooth Settings > Turn on Bluetooth Switch. Click Search for Bluetooth devices and pair the device that you want to connect to. 3. Reinstall the bottom cover after cleaning. Projection Settings Settings - Projection Settings > Set the display settings, installation mode, device mode, digital zoom, screen zoom, auto focus, auto four-corner correction, screen recognition, intelligent obstacle avoidance, manual keystone and reset keystone correction. Language and Keyboard Settings - Language and Keyboard > Support to change language and input keyboard. Date and Time Settings Settings - Date and time settings > Set the date, time, time zone, hour format. Android Wireless Mirroring Enter transcreen app on the mobile phone, make sure the mobile phone and the projector connect the same network. Search the projector device name on your phone, click connect to share screen. Miracast Mirroring Click STARTon the screen. Then will go to Miracast mirroring interface. Make sure the mobile phone and projector connect the same network. Follow the tips on the screen, according to your phone mirroring function to search the device for sharing screen. Android Wired Mirroring Connect the Android mobile phone to the USB port of projector by USB cable. At the first connection, the mobile phone will come out the tips for downloading the mirroring app. After installation, accept the mirroring at the pop-up window and then share screen. AirPlay Mirroring Make sure the mobile phone and projector connect to the same network. Click Screen Mirroringon your phone. Find the projector device name and share screen. Other Settings Settings - Other Settings > Set the external input at boot, button sound, screen saver, scheduled power off, restore factory settings, account settings. Application Settings Settings - Application Settings > Check the app information and clear the app data. Follow the tips on the screen, go to https://transcreen.app and download transcreen app. Scan the QR code or download the APP from the URL. https://transcreen.app/linedisplay Apple Wired Mirroring Connect the iOS mobile phone to USB port of projector by USB cable. After connection, input the passwords then share screen. FCC STATEMENT:

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) This device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator &

your body. ISED Statement English: This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause undesired operation of the device. The digital apparatus complies with Canadian CAN ICES-3 (B)/NMB-3(B). French: Cet appareil contient des metteurs/rcepteurs exempts de licence qui sont conformes aux RSS exempts de licence d'Innovation, Sciences et Dveloppement conomique Canada. L'exploitation est soumise aux deux conditions suivantes :

(1) Cet appareil ne doit pas provoquer d'interfrences.

(2) Cet appareil doit accepter toute interfrence, y compris les interferences susceptibles de provoquer un fonctionnement indsirable de l'appareil. l'appareil numrique du ciem conforme canadien peut - 3 (b) / nmb - 3 (b). This device meets the exemption from the routine evaluation limits in section 6.6 of RSS 102 and compliance with RSS 102 RF exposure, users can obtain Canadian Information on RF exposure and compliance. cet appareil est conforme l'exemption des limites d'valuation courante dans la section 6.6 du cnr -

102 et conformit avec rss 102 de l'exposition aux rf, les utilisateurs peuvent obtenir des donnes canadiennes sur l'exposition aux champs rf et la conformit. This equipment complies with Canada radiation exposure limits set forth for an uncontrolled environment. Cet quipement est conforme aux limites d'exposition aux rayonnements du Canada tablies pour un environnement non contrl. This equipment should be installed and operated with minimum distance 20cm between the radiator &

your body. Cet quipement doit tre install et utilis une distance minimale de 20 cm entre le radiateur et votre corps. The terms HDMI, HDMI High-Definition Multimedia Interface, HDMI Trade dress and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. L018AQ260725

LABEL AND LOCATION Formuler DX3 DX3 FCC ID:2BFIZ-DX3

(Size: L5.38cm x 2.28cm) Label Location _____________________________________________________________________________________________________

Local Representative Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(7), of the Commissions Rules (47 C.F.R.) we attest as follows for the product listed below:

FCC ID 2BFIZ-DX3 Model name DX3, LP103, LP104, LP105 We hereby acknowledge as follows:

i. ii. iii. both signees confirm that the point of contact accepts responsibility to act as a US-

American Representative on behalf of the applicant the point of contact provides the physical U.S. address and email as listed below both parties maintain the requirements of this agreement without expiration date US-American Point of Contact Applicant/Approval Holder Signature Signature FCC US Agent, LLC Chengdu Hotack Technology Co., Ltd. Company Name:

FRN: 0033402884 Contact Name:

Tim Payne Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA 0035156322 Star Hu 501-502, Unit 3, Building 13, No. 666 Jinfenghuang Avenue, High-tech Industry Park, Jinniu District, Chengdu City, Si Chuan Province,China. Phone: 708-571-3148 Email:

[email protected] [email protected] 0755-2823 7889

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products:

FCC ID 2BFIZ-DX3 Model name DX3, LP103, LP104, LP105 For the products listed above, we request permanent confidentiality for all applicable exhibits as there are:

the Operational Description the Block Diagram the Schematics the Part List the Tune up Information The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-07-31 Signature Date Name / Title: Star Hu / Manager Company: Chengdu Hotack Technology Co., Ltd. Address: 501-502, Unit 3, Building 13, No. 666 Jinfenghuang Avenue, High-tech Industry Park, Jinniu District, Chengdu City, Si Chuan Province, China. Phone: +86-755-2823 7889 Fax: +86-755-2310 8926 E-Mail: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commissions Rules (47 C.F.R.) we attest as follows for the product listed below:

FCC ID 2BFIZ-DX3 We, Applicant Model name DX3, LP103, LP104, LP105 Address:

Company Name: Chengdu Hotack Technology Co., Ltd. 501-502, Unit 3, Building 13, No. 666 Jinfenghuang Avenue, High-tech Industry Park, Jinniu District, Chengdu City, Si Chuan Province, China. Phone: +86-755-2823 7889 certify that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. This includes the cybersecurity and anti-virus software produced or provided by Kaspersky Lab, Inc. or any of ist successors and assignees. We certify that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment. If you have any questions, please feel free to contact us at the address shown below. Sincerely, 2026-07-31 Signature Date Name / Title: Star Hu / Manager Company: Chengdu Hotack Technology Co., Ltd. Address: 501-502, Unit 3, Building 13, No. 666 Jinfenghuang Avenue, High-tech Industry Park, Jinniu District, Chengdu City, Si Chuan Province, China. Phone: +86-755-2823 7889 Fax: +86-755-2310 8926 E-Mail: [email protected]

Due Diligence Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern FCC ID 2BFIZ-DX3 Model name DX3, LP103, LP104, LP105 Pursuant to KDB 986446 D01 Covered Equipment Guidance the evaluation of the product above shows compliance for the following reasons:

Compliance Inherent compliance Evaluation process The chipset(s) used is not capable of running the cybersecurity and/or anti-virus software The memory used does not allow the running the cybersecurity and/or anti-virus software The storage capacity does not allow the running the cybersecurity and/or anti-virus software The operating system used is not capable of running the cybersecurity and/or anti-virus software Results Compliance Compliance Compliance Compliance inherent No compliance Based on software bill of material Based on scan for running software on the device Based on filesystem scan for cybersecurity and/or anti-virus software The equipment for which authorization is sought complies with the rules and fulfils the requirements as detailed in the above mentioned KDB. Evaluation performed by Company Name: Shenzhen Global Test Service Co., Ltd. Contact Name:

Address:

Jinghua Xiao Room No. 101, Building 1, and Room No. 101, Building 3, No. 88 Jinkang Road, Jinsha Community, Kengzi Sub-district, Pingshan District, Shenzhen City, Guangdong, China Phone: +86-755-28717088 Email: [email protected] Date: 2026-07-31 Signature:

Chengdu Hotack Technology Co., Ltd. 501-502, Unit 3, Building 13, No. 666 Jinfenghuang Avenue, High-tech Industry Park, Jinniu District, Chengdu City, Si Chuan Province, China. Date: July 31, 2026 FCC ID: 2BFIZ-DX3 Model Number: DX3, LP103, LP104, LP105 To: Federal Communication Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21048 To Whom It May Concern, We, Chengdu Hotack Technology Co., Ltd. hereby declare that our product (Formuler DX3) Model Number: DX3, LP103, LP104, LP105, board, Schematic, Hardware version, Software version, structure and internal photos are same, Model named differently due to marketing purposes. Should you have any questions or comments regarding this matter, please have my best attention. Sincerely,

(Signed) Name / Title: Star Hu / Manager Company: Chengdu Hotack Technology Co., Ltd. Address: 501-502, Unit 3, Building 13, No. 666 Jinfenghuang Avenue, High-tech Industry Park, Jinniu District, Chengdu City, Si Chuan Province, China. Phone: +86-755-2823 7889 Fax: +86-755-2310 8926 E-Mail: [email protected]

Chengdu Hotack Technology Co., Ltd. WIFI Channel 12 and 13 Declaration Letter We declare the equipment identified below with regards to Channel 12 and 13 capabilities for FCC ID: 2BFIZ-DX3 Declaration Product hardware does not have the capability to operate on Channel 12 and 13. Product hardware has the capability to operate on Channel 12 and 13. However, these two channels will be disabled via software and will not be accessible to user. Product hardware has the capability to operate on Channel 12 and 13. However, all the operated channels cant be changed in the RF parameter via software. All channels have complied with all of the requirements sets out in FCC Part 15.247. Product hardware has the capability to operate on WiFi Channel 12 and 13, and meets the requirements of KDB 594280 D01 v02r01. Please note:

1.) By default, this device operates in a mode that is compliant with the U.S. requirements. 2.) This device will also use supplemental information such as geo-

location data to determine that it is operating outside the U.S., if necessary, to change its power. Such supplemental data will be derived from the following:

Global Navigation Satellite System (GNSS)7 sensors in the device Mobile Country Code (MCC),8 or MCC with a Mobile Network code

(MNC), received from a CMRS9 carrier and received directly by a receiver on the device Country information derived from multiple adjacent access points (for example using IEEE Std 802.11d provisions) may be permitted on case-by-case basis Other suitable geo-location data based on IP addresses or other reliable source. Name / Title: Star Hu / Manager Signature:

Phone: +86-755-28237889 Email: [email protected] Date: 2026-07-31 Page 1 of 1 Rev.2.0