2BXMZ-ES-TXM0012.4GHz FHSS RF Transmitter Module

This product is intended for use in Japan, the EU, and the United States. When using this product in other countries, please make sure it complies with the radio regulations of the country where it is used. FCC Warning: 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. Caution: Any changes or modifications to this device not explicitly approved by manufacturer could void your authority to operate this equipment. 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. The device has been evaluated to meet general RF exposure requirement. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. 2026.06 日本語 / English 〒243-0031 神奈川県厚木市緑ヶ丘5-13-37 Email: [email protected] エンジョイスマイルカンパニー株式会社 © 2026 enjoy smile Co. All rights reserved. EU

(enjoy smile Co.) (August 17, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BXMZ-ES-TXM001) [enjoy smile Co.] (“the applicant”) certifies 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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, () (Hiroyoshi Ishikawa) (enjoy smile Co.) (August 17, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BXMZ-ES-TXM001) [enjoy smile Co.] (“the applicant”) certifies 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. Sincerely, () (Hiroyoshi Ishikawa)

enjoy smile Co. 5-13-37 Midorigaoka Atsugi Kanagawa Japan Date: August 17, 2026 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2BXMZ-ES-TXM001 FRN: 0038766945 US Agent – Attestation Statement / Part 2.911(d)(7) enjoy smile Co.certifies, that as of August 17, 2026, we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2BXMZ-ES-TXM001 enjoy smile Co., accepts to maintain an agent of service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission- related administrative or judicial proceeding involving the equipment, whichever is later. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of enjoy smile Co.for FCC ID: 2BXMZ-ES-TXM001 An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: enjoy smile Co. Address: 5-13-37 Midorigaoka Atsugi Kanagawa Japan Designated Agent: FCC US Agent, LLC Company Representative: Hiroyoshi Ishikawa Designated Agent Representative: Tim Payne Signature: Email: [email protected] Tel: +81-462826442 Signature:

enjoy smile Co. (August 17, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (2.4GHz FHSS RF Transmitter Module / ES-TXM001 # FCC ID: 2BXMZ-ES-TXM001 #) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the (Schematics, Block diagram, Operation description) required to be submitted with this application be permanently withheld from public review. These materials contain trade secrets and proprietary information and are not customarily released to the public. The public disclosure of this information might be harmful to the company and provide unjustified benefits to our competitors. Please contact me if there is any information you may need. Sincerely, Signature: Name Hiroyoshi Ishikawa Position CEO Company Name enjoy smile Co. Address 5-13-37 Midorigaoka Atsugi Kanagawa Japan Tel +81-462826442 Fax / Email [email protected]

enjoy smile Co. (August 17, 2026) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize (Shenzhen Alpha Product Testing Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature: Name Hiroyoshi Ishikawa Position CEO Company Name enjoy smile Co. Address 5-13-37 Midorigaoka Atsugi Kanagawa Japan Tel +81-462826442 Fax / Email [email protected]

Shenzhen Alpha Product Testing Co., Ltd. Case No.: A2606238-C05 Page 1 of 3 FCC ID: 2BXMZ-ES-TXM001 Shenzhen Alpha Product Testing Co., Ltd. Case No.: A2606238-C05 Page 2 of 3 Shenzhen Alpha Product Testing Co., Ltd. Case No.: A2606238-C05 Page 3 of 3

1.5cm 1cm Label Location FCC ID: 2BXMZ-ES-TXM001 enjoy smile Co. Product name: 2.4GHz FHSS RF Transmitter Module Model No.: ES-TXM001

Shenzhen Alpha Product Testing Co., Ltd. Case No.: A2606238-C05 Page 1 of 2 FCC ID: 2BXMZ-ES-TXM001 Shenzhen Alpha Product Testing Co., Ltd. Case No.: A2606238-C05 Page 2 of 2

FCC ID: 2BF8U-F5 RF Exposure evaluation According to 447498 D01 General RF Exposure Guidance v06 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison Worse case is as below: [2406MHz: 1.972dBm(1.5747 mW) output power] (1.5747 mW /5mm) ·[√2.406 (GHz)]= 0.489 <3.0 for 1-g SAR Then SAR evaluation is not required

2.4G PCB Fiberglass Printed Antenna Specification Shenzhen Hongde Zhixin Technology Co., Ltd. Address: 3F, No.45-1, Yangtaishan Road, Shiyan Street, Bao'an District, Shenzhen Tel: 0755-21033119 | Fax: 0755-21032071 Report Date: 2026.01.08 Application: Remote Control Car 2.4G I. Basic Project Information No. Item Parameter 1 Operating Frequency (MHz) 2400～2480MHz（2.4G WIFI） 2 Applicable Device Remote Control Car 3 Antenna Type FR4 Fiberglass PCB On-board Printed Antenna 4 Feeding Method PCB Pad + Via Conductive, No External Wire 5 Manufacturing Method PCB Circuit Etching, Vias Connecting Top / Bottom Layer Traces II. Electrical Performance Parameters Item Specification Operating Frequency 2400~2480MHz VSWR across full frequency band ＜1.5 Antenna Gain 2.78dBi Radiation Efficiency 2400~2480MHz＞60% Nominal Impedance 50Ω III. Board Structure Parameters 1. Substrate: FR4 fiberglass board, thickness 1.0mm, copper foil 1OZ (35μm) 2. Structure: Via board; antenna traces printed on the top layer, key points connected to the bottom-layer auxiliary feeder through metal vias 3. 50Ω microstrip feeder: 1.0mm FR4 board, trace width 0.15mm, short- distance routing 4. Keep-out requirement: No copper pour, no components, no metal traces around the antenna; reserved keep-out area ≥ 7.5mm IV. Environmental Parameters Operating Temperature: -30°C～+85°C Storage Temperature: -30°C～+85°C V. Measured Data Table Freq(M Hz) Eff(%) Loss (dB) Gain(d Bi) DHIS(d B) Max(dB ) Min(dB) Directivity (dBi) 2400 46.85 -3.31 1.91 21.55 25.32 2.39 -15.98 2410 48.22 -3.18 2.18 22.10 26.21 2.52 -16.69 2420 46.61 -3.33 2.17 21.02 24.39 2.18 -15.51 2430 46.83 -3.30 2.39 21.61 25.30 2.38 -15.97 2440 48.20 -3.19 2.51 22.15 26.30 2.51 -16.68 2450 50.92 -2.94 2.78 23.22 27.75 2.78 -16.88 2460 51.05 -2.93 2.72 23.15 27.94 2.72 -16.71 2470 51.08 -2.93 2.65 23.21 28.01 2.65 -15.99 2480 50.41 -2.99 2.65 23.68 28.77 2.65 -15.20 2490 50.79 -2.96 2.49 24.33 29.38 2.49 -14.69 2500 50.81 -2.96 2.39 23.90 28.85 2.39 -14.60 VI. Routing & Via Process Requirements 1. The antenna shall be placed at the PCB edge; routing in the middle area of the board is prohibited. 2. Feeder turns shall be arc-shaped as much as possible to minimize right angles. 3. The feeding point shall be connected via metal vias; standard via diameter is 0.3mm. 4. LC matching pads shall be reserved at the RF end for convenient matching debugging. VII. Test Description Test Instrument: Vector Network Analyzer 2GHz~3GHz, IFBW 70kHz, tested at room temperature in a shielded anechoic chamber; all full- band parameters meet specifications. Figure 2: 2400 MHz 3D Radiation Pattern & H-Plane Gain Pattern (MH Plane) Figure 3: 2400 MHz E1, E2-Plane Gain Patterns 7.1 Description of M&H (H-Plane / M-Plane) Frequency-Gain Patterns 1.M-Plane (Meridional Plane / E-Plane): E1 and E2 polar-coordinate gain patterns, which characterize radiation-gain distribution of the electric-field cross-section. 2.H-Plane (Equatorial Plane / H-Plane): The red polar-coordinate curve on the right side of Figure 2, representing the H-plane gain pattern at 2400 MHz. 3.Test Conditions: Far-field test in an anechoic chamber, referenced to a 50 Ω standard probe; unit: dBi. 4.Gain Coverage Band: 2400-2480 MHz. Maximum measured gain: 2.78 dBi @2450 MHz; Minimum measured gain:1.91 dBi @2400 MHz. Figure 4: Antenna Layout Drawing Figure 5: Antenna Dimension Drawing 7.2 Supplementary Description for Antenna Layout and Dimensions Antenna Body: Etched trace on PCB top-layer. Outline dimension: 8.5 mm(L) ×2.54 mm(W), copper trace width:0.50 mm. 1. Antenna Body: Etched trace on PCB top-layer. Outline dimension: 8.5 mm(L) ×2.54 mm(W), copper trace width:0.50 mm. 2. Feed Via: Hole diameter Φ0.3 mm, provides electrical conduction between top-layer antenna and bottom-layer auxiliary feed trace. 3.50 Ω Microstrip Feed Line: Trace width 0.5 mm, physical feed-line length 8.5 mm. 4.Layout Constraints of PCB Prototype: The antenna unit is placed at the PCB edge. The actual achieved clearance around the antenna is 4.3 mm. No copper pour, components or metal traces are arranged within the clearance zone. Remark: 7.5 mm is the ideal recommended clearance for this antenna design. Restricted by the overall mechanical structure of this RC car product, only 4.3 mm clearance is realized on the actual hardware. All test data in this report including VSWR, gain and radiation efficiency are obtained from anechoic-chamber tests using the prototype PCB with 4.3 mm clearance.

ALPHA's reports is using a digital certificate that is trusted on Adobe's official server. If there is no digital certificate or the digital certificate shows damaged in your report. Please do not accept the report. E-mail: [email protected] Tel: 4008-3008-95 Website: http://www.a-lab.cn FCC REPORT Applicant : enjoy smile Co. Address of Applicant : 5-13-37 Midorigaoka Atsugi Kanagawa Japan Manufacturer : DMS Solutions Ltd Address of Manufacturer : 3F, Jinjie Industrial Park, No.13 Longjiang Road, Wanji Industrial Zone, Longhu District, Shantou Equipment under Test : 2.4GHz FHSS RF Transmitter Module Model No. : ES-TXM001 FCC ID : 2BXMZ-ES-TXM001 Test Standard(s) : FCC Rules and Regulations Part 15 Subpart C Section 15.247, ANSI C63.10-2020 Report No. : A2606238-C05-R01 Issue Date : 2026/08/27 Issued By : Shenzhen Alpha Product Testing Co., Ltd. Building i, No.2, Lixin Road, Fuyong Street, Bao'an District,518103, Shenzhen City, Guangdong Province, P.R. China. Shenzhen Al pha Product Testi ng C o., L td. R eport N o.:A2606238-C 05-R 01 Page 2 of 53 Table of Contents 1. Summary of Test Results ............................................................................................. 7 2. General Test Information .............................................................................................. 8 2.1. Description of EUT ........................................................................................................ 8 2.2. Accessories of EUT ...................................................................................................... 9 2.3. Block diagram of EUT configuration for test ................................................................. 9 2.4. Test mode description .................................................................................................. 9 2.5. Deviations of test standard ........................................................................................... 9 2.6. Test environment conditions ......................................................................................... 9 2.7. Test laboratory ............................................................................................................ 10 2.8. Measurement uncertainty ........................................................................................... 10 3. Maximum Peak Output Power .................................................................................... 11 3.1. Test equipment ........................................................................................................... 11 3.2. Block diagram of test setup ........................................................................................ 11 3.3. Limits ........................................................................................................................... 11 3.4. Assistant equipment used for test .............................................................................. 11 3.5. Test procedure ............................................................................................................ 11 3.6. Test result ................................................................................................................... 11 4. 99% Bandwidth&20 dB Bandwidth ............................................................................. 13 4.1. Test equipment ........................................................................................................... 13 4.2. Block diagram of test setup ........................................................................................ 13 4.3. Limits ........................................................................................................................... 13 4.4. Assistant equipment used for test .............................................................................. 13 4.5. Test procedure ............................................................................................................ 13 4.6. Test result ................................................................................................................... 13 5. Carrier Frequency Separation .................................................................................... 15 5.1. Test equipment ........................................................................................................... 15 5.2. Block diagram of test setup ........................................................................................ 15 5.3. Limits ........................................................................................................................... 15 5.4. Assistant equipment used for test .............................................................................. 15 5.5. Test procedure ............................................................................................................ 15 5.6. Test result ................................................................................................................... 15 6. Number of Hopping Channel ...................................................................................... 17 6.1. Test equipment ........................................................................................................... 17 6.2. Block diagram of test setup ........................................................................................ 17 6.3. Limits ........................................................................................................................... 17 6.4. Assistant equipment used for test .............................................................................. 17 Shenzhen Al pha Product Testi ng C o., L td. R eport N o.:A2606238-C 05-R 01 Page 3 of 53 6.5. Test procedure ............................................................................................................ 17 6.6. Test result .................................................................................…

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FCC ID: 2BXMZ-ES-TXM001 1.1. Photo of Radiated Emission test FCC ID: 2BXMZ-ES-TXM001