2A2QO-MBZ228Smart white noise mechine

USER MANUAL Dreams Begin with Dreamegg Smart white noise mechine GETTING START Search and download the “Tuya Smart” app from the Apple App or Google Play store. Step 1 ：Plug it in Step 2 : Download the App Connect the provided power cable to Dreamegg Nite 1, then plug it into your power outlet. Always keep your Nite 1 plugged in. Make sure your phone is connected to a secure 2.4GHz Wifi network and the app is allowed to access your location, connect network, and use Bluetooth. Step 3 : Connect your Dreamegg Open App and tap “Add device” Long press the pairing button until the indicator light flashes white and the display flashes "P". This indicates that the device has entered pairing mode. Select 2.4GHz Wi-Fi network and enter the password to complete connection. Follow the on-screen steps to conect your Dreamegg Nite 1. Note: Make sure both your phone and device are connect to 2.4GHz Wi-Fi network, 5GHz will fail to pair. USING YOUR DREAMEGG Charing Port Dimmable Time Display Night light Alarm On : Alarm is enabled Off : Alarm is disabled Snooze Flashing : Snooze on Volume Down Previous Track Light Button Short press : Select light mode Long press : Turn off the light Pause Play Button Short press : Play / Pause Long press : Turn off the light and sound Multi-Fuction Button Short Press: Cycle through favorites / Snooze (When the alarm goes off ) Long Press: Adjust brightness / Turn off the alarm today (When the alarm goes off ) Child Lock Indicator Light Red : Child lock is enabled Wi-Fi Paring Button & Wi-Fi Pairing Indicator Long Press : Enter the pairing mode Flash White : Pairing mode Alarm disabled button & Alarm disable Indicator Long Press : Alarm disabled mode Light White : Alarm is disabled Volume Up Next Track CONTROL YOUR DREAMEGG VIA APP ①Alarm ②Routine ③Child Lock ④Settings ⑤Sound and Brightness Control ⑥Custom Favorite ⑦ 3 Light Modes ⑧ 4 Sound Options 11 Nature sounds / 7 Ambient Sounds / 6 Backgroud Noises / 10 Relaxing Melodies ❶❷❸❹ ❺ ❻ ❽ ❼ SAFETY INFORMATION IMPORTANT: Please read and comply with all of the instructions and warnings provided in this manual before using the product. Failure to cormply with the instructions and warnings provided herein may result in inaccurate results or damage to the product itself. ●Parents assume all responsibility for selecting volume and sound settings that are appropriate for their child. ●Never place against baby's ears or in a cribor bed. Always check with child's pediatrician prior to using any sound machine. ●Always keep at least three feet away from children as the cord can pose a strangulation hazard. ●Not a toy and not for teething. ●Put the unit away from heat source, dust or vibration. ●Avoid placing the unit in rain or humid place, keep it dry. ●Put the unit away from heat source, dust or vibration. ●Avoid dropping objects or spilling liquids onto the unit. ●Do not put any stuff on this product. ●Use provided power cord for the sake of safety. ●Do not operate the unit with a damaged cord or after malfunction occurs, or damaged in any manner. ●Do not remove the power plug with wet hands as it may cause electrical shock. ●The unit should be cleaned regularly with a soft, dry cloth. Do not use any liquids or sprays (including solvents, chemicals or alcohol) or abrasives to clean. FCC DISCLAIMER 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. PACKAGE CONTENTS Sound Machine Power Code User Manual THINGS Nite 1 CAN DO Change sound and volume Use the app or press the buttons to set the volume to a comfortable level and choose your preferred sound from a variety of white noises, nature sounds, and melodies. Dimmable clock Dim or turn off the clock in the app. Visit “Clock Display” under settings. Set an alarm Use the app to set an alarm with soothing sounds and your preferred color. Want to snooze? Press Multi-Fuction Button for another 9mins. Child lock Use the app to enable or disable the child lock function. Customize a routine Personalize a routine to fit your child’s schedule, choosing from the variety of colors and sounds in the app. Preset a favorite Use the app to preset the light and sound settings as favorites. Press the multi-function button to cycle through your favorites. Choose a custom color and brightness Use the app to choose your preferred color and brightness. Display not turning on.Q ①Check if the display is turned off in the app settings. Make sure to enable the display. ②Check that the display brightness is not set too low. Go to the app settings and increase the display brightness. A Cannot connect my Dreamegg to APP?Q ①Check if the device is in WI-FI pairing mode. When in WI-FI pairing mode, the indicator light should flash white, and the display should show a flashing "P." Press and hold the Wi-Fi pairing button on the bottom of the device to enter setup mode. ②Ensure the app is allowed to access your location, connect network, and use Bluetooth.Go to your phone's settings and enable these permissions. ③Confirm your phone is connected to a 2.4GHz Wi-Fi network. Both your phone and the device need to be on the same 2.4GHz Wi-Fi network for proper connectivity. A QUESTIONS & ANSWERS Fail to turn on after plugging in.Q ①Make sure you are using the provided power code and the power is not damaged. ②Check if the device is connected to an appropriate electrical outlet correctly. A Top button is not responsive.Q Check if a child lock is enabled. If so, the child lock indicator light at the bottom will be red. You’ll need to disable the child lock through the app. A Alarm set but not ringingQ ①Check if the device is in alarm disabled mode. When in this mode, the alarm icon on the display will be off, and the alarm disabled indicator light at the bottom will be on. Press and hold the alarm …

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AOGES CO., LIMITED 1/1 US Agent for Service of Process LETTER OF ATTESTATION TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 US Agent for Service of Process: Company Name: AOGES CO., LIMITED Contact Name: XIAOYAN LAI Address: Address: 1624 Market St., Ste 226, #30327 Denver CO, 80202 US Telephone No: +1 303 623 1940 Email: [email protected] FRN: 0033947847 Applicant: Company name: Shenzhen Mai Yuan Technology Co., Ltd. Product Description: Smart white noise mechine FRN: 0031200421 Grantee code: 2A2QO FCC ID: 2A2QO-MBZ228 Contact Name: Li Jian Address: Room 509, 5th Floor, Hengbo Innovation and Technology Industrial Park, Qingning Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China Telephone No: 15989598451 Email: [email protected] [Shenzhen Mai Yuan Technology Co., Ltd.] certifies that, as of the date of this filing of the application with the TCB, [AOGES CO., LIMITED] is our designated US agent for service of process for the above referenced FCC ID. [Shenzhen Mai Yuan Technology Co., Ltd.] accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission related proceeding involving equipment. [AOGES CO., LIMITED] accepts, as of the date of the filing of the application, the obligation of the designated US agent for service of process for the above reference FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause § 2.911. Date: 2024.09.13 Applicant’s Name: Shenzhen Mai Yuan Technology Co., Ltd. US Agent’s Name: AOGES CO., LIMITED Title:Manager Title: General Manager Signature Signature XIAOYAN LAI

C5266091_X24_Ed.2 1/1 “Attestation Statements” TO: Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules that prohibit equipment authorization for “covered” telecommunications equipment and video surveillance equipment produced by entities identified on the Commission’s Covered List 1 , which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) Applicant Company name: Shenzhen Mai Yuan Technology Co., Ltd. Grantee code: 2A2QO FRN: 0031200421 FCC ID: 2A2QO-MBZ228 Contact Name: Li Jian Address: Room 509, 5th Floor, Hengbo Innovation and Technology Industrial Park, Qingning Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China Telephone No: 15989598451 Fax No: Email: [email protected] i. [Shenzhen Mai Yuan Technology Co., Ltd.] (“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. The applicant must sign this certification. ii. [Shenzhen Mai Yuan Technology Co., Ltd.] (“the applicant”) certifies that, as of the date of the filing of the application, the applicant [is not] (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing “covered” equipment. The applicant must sign this certification. [Shenzhen Mai Yuan Technology Co., Ltd.] (“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. Date: 2024.09.13 Applicant’s Name: Shenzhen Mai Yuan Technology Co., Ltd. Title:Manager Signature 1 The Commission’s Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commission’s website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes “covered” equipment. https://www.fcc.gov/supplychain/coveredlist

Shenzhen Mai Yuan Technology Co., Ltd. Product Similarity Declaration Product name: Smart white noise mechine Model name: MBZ228, MBZ226, MBZ229, MBZ231, MBZ232, MBZ233, MBZ2X1, MBZ2X2, MBZ2X5, MBZ251, MBZ252, MBZ253, MBZ256, MBZ258, MBZ259 FCC ID: 2A2QO-MBZ228 We (Shenzhen Mai Yuan Technology Co., Ltd.) hereby state that all the models are electrical identical including the same software parameter and hardware design (i.e., circuit design, PCB Layout, RF module/circuit, antenna type(s) and antenna location, components on PCB, etc.,), same mechanical structure and design (including product enclosure, materials, etc.,), the only difference is the model name Signature: Name: Li Jian Title: Manager China, 2024.09.13

C5266091_X8_Ed.1 1/1 < Shenzhen Mai Yuan Technology Co., Ltd. > Letter of Authorization Company: Shenzhen Mai Yuan Technology Co., Ltd. Address: Room 509, 5th Floor, Hengbo Innovation and Technology Industrial Park, Qingning Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China Product Name: Smart white noise mechine Model Number: MBZ228, MBZ226, MBZ229, MBZ231, MBZ232, MBZ233, MBZ2X1, MBZ2X2, MBZ2X5, MBZ251, MBZ252, MBZ253, MBZ256, MBZ258, MBZ259 FCC Identifier: 2A2QO-MBZ228 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Li Jian Date: 2024.09.13 Title: Manager Signature of applicant:

C5266091_X10_Ed.2 1/1 < Shenzhen Mai Yuan Technology Co., Ltd. > Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024.09.12 Subject: Request for Confidentiality FCC ID: 2A2QO-MBZ228 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☐ Internal Photos ☐ NOTE 1 ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. C5266091_X10_Ed.2 1/1 Sincerely, Signature: Name: Li Jian Title: Manager

Page 1 of 4 Report No.: STS2409012 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model: MBZ228 Photo 1 Photo 2 Page 2 of 4 Report No.: STS2409012 Photo 3 Photo 4 Page 3 of 4 Report No.: STS2409012 Photo 5 Photo 6 Page 4 of 4 Report No.: STS2409012 Photo 7 Photo 8

Label 12mm 20mm Smart white noise mechine Model: MBZ228 FCC ID: 2A2QO-MBZ228

Page 1 of 7 Report No.: STS2409012 APPENDIX-PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Model:MBZ228 Photo 1 Photo 2 Page 2 of 7 Report No.: STS2409012 Photo 3 Photo 4 Page 3 of 7 Report No.: STS2409012 Photo 5 Photo 6 Page 4 of 7 Report No.: STS2409012 Photo 7 Photo 8 Page 5 of 7 Report No.: STS2409012 Photo 9 Photo 10 2.4G WIFI Antenna Page 6 of 7 Report No.: STS2409012 Photo 11 Photo 12 Page 7 of 7 Report No.: STS2409012 Photo 13 Photo 14

The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.: STS2409012H01 Issued for Shenzhen Mai Yuan Technology Co., Ltd. Room 509, 5th Floor, Hengbo Innovation and Technology Industrial Park, Qingning Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China Product Name: Smart white noise mechine Brand Name: N/A Model Name: MBZ228 Series Model(s): MBZ226, MBZ229, MBZ231, MBZ232, MBZ233, MBZ2X1, MBZ2X2, MBZ2X5, MBZ251, MBZ252, MBZ253, MBZ256, MBZ258, MBZ259 FCC ID: 2A2QO-MBZ228 Test Standards: FCC 47CFR §2.1091 Page 2 of 9 Report No.: STS2409012H01 TEST REPORT Applicant’s Name ................. : Shenzhen Mai Yuan Technology Co., Ltd. Address ................................. : Room 509, 5th Floor, Hengbo Innovation and Technology Industrial Park, Qingning Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China Manufacturer's Name ........... : Shenzhen Mai Yuan Technology Co., Ltd. Address ................................. : Room 509, 5th Floor, Hengbo Innovation and Technology Industrial Park, Qingning Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China Product Description Product Name ........................ : Smart white noise mechine Brand ................................... : N/A Model Number ....................... : .. : MBZ228 Series Model(s) ...................... : MBZ226, MBZ229, MBZ231, MBZ232, MBZ233, MBZ2X1, MBZ2X2, MBZ2X5, MBZ251, MBZ252, MBZ253, MBZ256, MBZ258, MBZ259 Standards ............................. : FCC 47CFR §2.1091 447498 D04 Interim General RF Exposure Guidance v01 The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ...................... : 03 Sept. 2024 Date (s) of performance of tests ............. : 03 Sept. 2024~ 19 Sept. 2024 Date of Issue .......................................... : 19 Sept. 2024 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Tony Liu) Authorized Signatory : (Bovey Yang) Page 3 of 9 Report No.: STS2409012H01 TABLE OF CONTENTS 1. GENERAL INFORMATION 5 1.1 GENERAL DESCRIPTION OF THE EUT 5 1.2 TEST FACTORY 5 2. FCC 47CFR §2.1091 REQUIREMENT 6 2.1 TEST STANDARDS 6 2.2 LIMIT 6 2.3 TEST RESULT 9 Page 4 of 9 Report No.: STS2409012H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 19 Sept. 2024 STS2409012H01 ALL Initial Issue Page 5 of 9 Report No.: STS2409012H01 1. GENERAL INFORMATION 1.1 GENERAL DESCRIPTION OF THE EUT Product Name Smart white noise mechine Brand N/A Model Number MBZ228 Series Model(s) MBZ226, MBZ229, MBZ231, MBZ232, MBZ233, MBZ2X1, MBZ2X2, MBZ2X5, MBZ251, MBZ252, MBZ253, MBZ256, MBZ258, MBZ259 Model Difference Only the model name is different Product Description The EUT is Smart white noise mechine Operation Frequency: 802.11b/g/n 20: 2412~2462 MHz Modulation Type: 802.11b(DSSS):CCK,DQPSK,DBPSK 802.11g(OFDM):BPSK,QPSK,16-QAM,64-Q AM 802.11n(OFDM):BPSK,QPSK,16-QAM,64-Q AM Antenna gain: 1.37dBi Antenna Designation: PCB Adapter Input: 100-240V~50/60Hz 0.3A Output:5V⎓2A Rating Input: DC 5V 2A Hardware Version N/A Software Version N/A 1.2 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 Page 6 of 9 Report No.: STS2409012H01 2. FCC 47CFR §2.1091 REQUIREMENT 2.1 TEST STANDARDS Follow the maximum permissible exposure (MPE) limits specified in 447498 D04 Interim General Radio Frequency Exposure Guidelines v01. The gain of the antenna used in the product was extracted from the supplied antenna data sheet and the maximum total power input to the antenna was also measured. Calculate the distance from the product to the MPE limit by the formula. 2.2 LIMIT For single RF sources (i.e., any single fixed RF source, mobile device, or portable device, as defined in paragraph (b)(2) of this section): A single RF source is exempt if: (A) The available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption may not be used in conjunction with other exemption criteria other than those in paragraph (b)(3)(ii)(A) of Part 1.1307. Medical implant devices may only use this exemption and that in paragraph (b)(3)(ii)(A); (B) Or the available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold Pth (mW) described in the following formula. This method shall only be used at separation distances (cm) from 0.5 centimeters to 40 centimeters and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by: Page 7 of 9 Report No.: STS2409012H01 (C) Or using below table and the minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. For the exemption in Table 1 to apply, R must be at least λ/2π, where λ is the free-space operating wavelength in meters. If the ERP of a single RF source is not easily obtained, then the available maximum time-averaged power may be used in lieu of ERP if the physical dimensions of the radiating structure(s) do not exceed the electrical length of λ/4 or if the antenna gain is less than that of a half-wave dipole (1.64 linear value). RF Source frequency (MHz) Threshold ERP(watts) 0.3-1.34 1,920 R 2 . 1.34-30 3,450 R 2 /…

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The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Radio Test Report Report No.:STS2409012W01 Issued for Shenzhen Mai Yuan Technology Co., Ltd. Room 509, 5th Floor, Hengbo Innovation and Technology Industrial Park, Qingning Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China Product Name: Smart white noise mechine Brand Name: N/A Model Name: MBZ228 Series Model(s): MBZ226, MBZ229, MBZ231, MBZ232, MBZ233, MBZ2X1, MBZ2X2, MBZ2X5, MBZ251, MBZ252, MBZ253, MBZ256, MBZ258, MBZ259 FCC ID: 2A2QO-MBZ228 Test Standards: FCC Part15.247 S T L A B S Page 2 of 77 Report No.: STS2409012W01 TEST REPORT Applicant’s Name ................. : Shenzhen Mai Yuan Technology Co., Ltd. Address ................................. : Room 509, 5th Floor, Hengbo Innovation and Technology Industrial Park, Qingning Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China Manufacturer's Name ........... : Shenzhen Mai Yuan Technology Co., Ltd. Address ................................. : Room 509, 5th Floor, Hengbo Innovation and Technology Industrial Park, Qingning Road, Qinghu Community, Longhua Street, Longhua District, Shenzhen, Guangdong, China Product Description Product Name ........................ : Smart white noise mechine Brand Name ........................... : N/A Model Name .......................... : .. : MBZ228 Series Model(s) .................... : MBZ226, MBZ229, MBZ231, MBZ232, MBZ233, MBZ2X1, MBZ2X2, MBZ2X5, MBZ251, MBZ252, MBZ253, MBZ256, MBZ258, MBZ259 Test Standards ..................... : FCC Part 15.247 Test Procedure........................: ANSI C63.10-2020 This device described above has been tested by STS, the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. The test results presented in this report relate only to the object tested. This report shall not be reproduced, except in full, without the written approval of the Shenzhen STS Test Services Co., Ltd. Date of Test ........................................... : Date of receipt of test item ...................... : 03 Sept. 2024 Date (s) of performance of tests ............. : 03 Sept. 2024~ 19 Sept. 2024 Date of Issue .......................................... : 19 Sept. 2024 Test Result .............................................. : Pass Testing Engineer : (Aaron Bu) Technical Manager : (Tony Liu) Authorized Signatory : (Bovey Yang) Page 3 of 77 Report No.: STS2409012W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 6 1.1 TEST FACTORY 7 1.2 MEASUREMENT UNCERTAINTY 7 2. GENERAL INFORMATION 8 2.1 GENERAL DESCRIPTION OF THE EUT 8 2.2 DESCRIPTION OF THE TEST MODES 10 2.3 TEST SOFTWARE AND POWER LEVEL 10 2.4 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 11 2.5 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 11 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 12 3. EMC EMISSION TEST 13 3.1 CONDUCTED EMISSION MEASUREMENT 13 3.2 RADIATED EMISSION MEASUREMENT 17 4. CONDUCTED SPURIOUS & BAND EDGE EMISSION 29 4.1 LIMIT 29 4.2 TEST PROCEDURE 29 4.3 DEVIATION FROM STANDARD 29 4.4 TEST SETUP 29 4.5 EUT OPERATION CONDITIONS 29 4.6 TEST RESULTS 29 5. POWER SPECTRAL DENSITY TEST 30 5.1 LIMIT 30 5.2 TEST PROCEDURE 30 5.3 DEVIATION FROM STANDARD 30 5.4 TEST SETUP 30 5.5 EUT OPERATION CONDITIONS 30 5.6 TEST RESULTS 30 6. BANDWIDTH TEST 31 6.1 LIMIT 31 6.2 TEST PROCEDURE 31 6.3 DEVIATION FROM STANDARD 31 6.4 TEST SETUP 31 6.5 EUT OPERATION CONDITIONS 31 Page 4 of 77 Report No.: STS2409012W01 Table of Contents Page 6.6 TEST RESULTS 31 7. PEAK OUTPUT POWER TEST 32 7.1 LIMIT 32 7.2 TEST PROCEDURE 32 7.3 DEVIATION FROM STANDARD 32 7.4 TEST SETUP 33 7.5 EUT OPERATION CONDITIONS 33 7.6 TEST RESULTS 33 8. ANTENNA REQUIREMENT 34 8.1 STANDARD REQUIREMENT 34 8.2 EUT ANTENNA 34 APPENDIX 1-TEST DATA 35 1. DUTY CYCLE 35 2. MAXIMUM AVERAGE CONDUCTED OUTPUT POWER 41 3. MAXIMUM PEAK CONDUCTED OUTPUT POWER 47 4. -6DB BANDWIDTH 48 5. MAXIMUM POWER SPECTRAL DENSITY LEVEL 54 6. BAND EDGE 60 7. CONDUCTED RF SPURIOUS EMISSION 67 APPENDIX 2-PHOTOS OF TEST SETUP 77 Page 5 of 77 Report No.: STS2409012W01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 19 Sept. 2024 STS2409012W01 ALL Initial Issue Page 6 of 77 Report No.: STS2409012W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: KDB 558074 D01 15.247 Meas Guidance v05r02. FCC Part 15.247,Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS -- 15.247 (a)(2) 6dB Bandwidth PASS -- 15.247 (b)(3) Output Power PASS -- 15.209 Radiated Spurious Emission PASS -- 15.247 (d) Conducted Spurious & Band Edge Emission PASS -- 15.247 (e) Power Spectral Density PASS -- 15.205 Restricted Band Edge Emission PASS -- Part 15.247(d)/ part 15.209(a) Band Edge Emission PASS -- 15.203 Antenna Requirement PASS -- NOTE: (1) ‘N/A’ denotes test is not applicable in this Test Report. (2) All tests are according to ANSI C63.10-2020. Page 7 of 77 Report No.: STS2409012W01 1.1 TEST FACTORY SHENZHEN STS TEST SERVICES CO., LTD Add. : 101, Building B, Zhuoke Science Park, No.190 Chongqing Road, ZhanChengShequ, Fuhai Sub-District, Bao’an District, Shenzhen, Guang Dong, China FCC test Firm Registration Number: 625569 IC test Firm Registration Number: 12108A A2LA Certificate No.: 4338.01 1.2 MEASUREMENT UNCERTAINTY The reported uncertainty of measurement y ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95 %. No. Item Uncertainty 1 RF output power, conducted ±0.755dB 2 Unwanted Emissions, conducted ±2.874dB 3 All emissions, radiated 9K-30MHz ±3.80dB 4 All emissions, radiated 30M-1GHz ±4.18dB 5 All emissions, radiated 1G-6GHz ±4.90dB 6 Al…

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Page 1 of 2 FCC ID: 2A2QO-MBZ228 DTS Setup photo Model Number: MBZ228 DTS conduction DTS radiation L Page 2 of 2 FCC ID: 2A2QO-MBZ228 DTS radiation H