2ADYY-S3Wireless Speaker

www.tecno-mobile.com SQUARE S3 Wireless Speaker Model:S3 Hereby, TECNO MOBILE LIMITED Declares that this Wireless Spearer is in compliance with the essen�al requirements and other relevant provisions of direc�ve 2014/53/EU. User Manual Product features The speaker is excellent design, small and cute, easy to carry for travel and sports. Use the Bluetooth module with excellent performance for smoother use. With TF card reader, USB, support MP3 music formats . Support TWS func�on. Support calling func�on. High-efficiency digital power amplifier, environmental protec�on. Built-in lithium ion ba�ery, can be recharged repeatedly. Built-in high-quality speakers, the sound quality is pure and beau�ful. Unique resonant structure, outstanding bass. Performance parameter descrip�on Bluetooth version: 5.0 Wireless transmission distance: 10 metersBarrier-free Speaker specifica�on: 4Ω3W Charging voltage: DC 5V Playing �me: 5-7H Calling �me: 8-10H Power off/Standby �me: ≥90 days LED indicator: red/blue/green color light Pairing code:no Charging indicator: When charging, the red light flashes slowly, and when fully charged, the red light is on. Key descrip�on Switch: power bu�on;long press to turn on/off the speaker. MFB bu�on: play/pause/answer the call/hang up the call;short press to answer the incoming call,short press to hang up during a call,Long press the MFB bu�on for 2 seconds to reject the call.double click to MFB bu�on:TWS pairing or cancel pairing. POWER bu�on:double click power bu�on, switch TF and Bluetooth mode. POWER bu�on:short press power bu�on to adjust the following light modes:breathing light-rhythm light-colorful light-light off. Next song/ Volume+:short press to increase the volume, long press to next song. Previous song/Volume-:short press to decrease the volume,long press to previous song. Bluetooth instruc�ons Bluetooth name:TECNO Square S3. Turn on the speaker or press the power bu�on to switch to Bluetooth mode, with voice prompt.A�er pairing and successfully connec�ng with other devices,Bluetooth music playing or Bluetooth calling func�on can be achieved. TF card reader Insert the TF card reader,the speaker will automa�cally recognize and play the music of the TF card.At this �me, you can use the previous song/next song,play/pause and other keys to control the music playing. Precau�ons for low ba�ery and shutdown When the ba�ery is low, the speaker will automa�cally shut down,please note that the switch must be turned off and recharged in �me.If the speaker is not used for a long �me,charge it at least once a month to protect the ba�ery and extend the ba�ery life. Light instruc�ons The light is automa�cally on when turning on the speaker,short press power bu�on to adjust the following light modesbreathing light-rhythm light-colorful light-light off. TWS func�on opera�on instruc�ons When two speakers are turned on,double click the MFB bu�on of any speaker, enter the TWS mode.In this mode,search and connect Bluetooth “TECNO Square S3” via your mobile phone,the two speaker can be used at the same �me.double click the MFB bu�on of any speaker again, exit the TWS mode. Note:The company is constantly commi�ed to improving the quality and performance of products, and product technology and design. The company reserves the right to con�nuously improve the product without further no�ce. For func�ons,please refer to the actual product. www.tecno-mobile.com SQUARE S3 EU DECLARATION OF CONFORMITY In accordance with EU Direc�ves and Regula�ons Company name: TECNO MOBILE LIMITED Address: FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19-25 SHAN MEI STREET FOTAN NT HONGKONG as the manufacturer hereby declares under our sole responsibility that the, Product(s): Wireless Speaker Model name: S3 is in conformity with the essen�al requirements of the RE Direc�ve 2014/53/EU: Radio ETSI EN 300 328 V2.2.2 (2019-07) Ar�cle 3.2 EMC ETSI EN 301 489-1 V2.2.3 (2019-11) Ar�cle 3.1(b) ETSI EN 301 489-17 V3.2.4 (2020-09); Safety EN IEC 62368-1:2020+A11:2020 Ar�cle 3.1(a) Health EN 50663:2017, EN 62479:2010 Ar�cle 3.1(a) Opera�ng Frequency(RF): BT:2402-2480M Hz Modula�on mode: GFSK,Π/4- DQPSK,8DPSK(BT) GFSK(BLE) Max RF output power(only for CE: BT: -2.53dBm BLE:-2.67dBm Risk of explosion if ba�ery is replaced by an incorrect type,dispose of used ba �eries according to the instruc�ons. The pr oduct shal l only be connected to a USB interface of version USB 2.0. Adapter shall be installed near the equipment and shall be easily accessible. EUT Temperature:0°~+45°(Standalone),0°~+40°With Parts. To prevent possible hearing damage,do not listen at high volume levels for long periods. CAUTION An EU Type Examina�on Cer�ficate for this Product was issued in accordance with Annex III (Module B) of the 2014/53/EU Radio Equipment Direc�ve by Bay Area Compliance Laboratories Corp. (2014/53/EU Radio Equipment Direc�ve No�fied Body Iden�fica�on Number 1313) Signed on behalf of TECNO MOBILE LIMITED (Signature of authorized person) Nengyong.Wu Cer�fied Engineer Date: 2022-10-26 IMPORTANT NOTE: 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 protec�on against harmful interference in a residen�al installa�on. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruc�ons, may cause harmful interference to radio communica�ons. However, there is no guarantee that interference will not occur in a par�cular installa�on. If this equipment does cause harmful interference to radio or television recep�on, 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 separa�on between the equipment and receiver. —Connect the equipment into an outlet on a circuit diffe…

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TECNO MOBILE LIMITED Address: FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19-25 SHAN MEI STREET FOTAN NT HONGKONG Tel.: +86-0755-61803856 E-mail: [email protected] QA-FR-170-B FCC Authorization Date: 2022-11-19 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, TECNO MOBILE LIMITED hereby authorizes Shenzhen Accurate Technology Co., Ltd. to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Shenzhen Accurate Technology Co., Ltd. on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature Yiting Luo Project Manager

TECNO MOBILE LIMITED Address: FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19-25 SHAN MEI STREET FOTAN NT HONGKONG Tel.: +86-0755-61803856 E-mail: [email protected] FCC Confidential Authorization Date: 2022-11-19 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2ADYY-S3 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, TECNO MOBILE LIMITED hereby requests long-term confidential treatment of information accompanying this application as outlined below: • Block Diagram • Schematics • Operation Description As well as short-term confidential treatment of information accompanying this application for a period of 180 days after grant is issued as outlined below: • Internal Photos • User’s Manual • External Photos • Test Set-up Photos The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature Yiting Luo Project Manager

Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2ADYY-S3 External Photos Page 1 of 4 External Photos Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2ADYY-S3 External Photos Page 2 of 4 Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2ADYY-S3 External Photos Page 3 of 4 Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2ADYY-S3 External Photos Page 4 of 4

Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS1221017-47569E-RF LABEL AND LOCATION Page 1 of 1 FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2ADYY-S3 Internal Photos Page 1 of 5 Internal photos Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2ADYY-S3 Internal Photos Page 2 of 5 Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2ADYY-S3 Internal Photos Page 3 of 5 Antenna Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2ADYY-S3 Internal Photos Page 4 of 5 Shenzhen Accurate Technology Co., Ltd. FCC ID.: 2ADYY-S3 Internal Photos Page 5 of 5

Note: This report may contain dat ★ a that are not covered by the A2LA accreditation and are marked with an asterisk “ ”. Shenzhen Accurate Technology Co., Ltd. is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 14: 2021-11-09 Page 1 of 45 FCC- BLE TEST REPORT Applicant Name : TECNO MOBILE LIMITED Address : FLAT N 16/F BLOCK B UNIVERSAL INDUSTRIAL CENTRE 19-25 SHAN MEI STREET FOTAN NT HONGKONG Report Number : SZNS1221017-47569E-RF-00B FCC ID: 2ADYY-S3 Test Standard (s) FCC PART 15.247 Sample Description Product Type: Wireless Speaker Model No.: S3 Multiple Model(s) No.: N/A Trade Mark: TECNO Date Received: 2022/10/17 Report Date: 2022/11/14 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Andy Yu Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: SZNS1221017-47569E-RF-00B Version 14: 2021-11-09 Page 2 of 45 FCC- BLE TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 5 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 7 DUTY CYCLE ................................................................................................................................................................ 7 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 7 EXTERNAL I/O CABLE .................................................................................................................................................. 7 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 8 SUMMARY OF TEST RESULTS ............................................................................................................................... 9 TEST EQUIPMENT LIST ......................................................................................................................................... 10 FCC§15.247 (I), §1.1307 (B) (3) &§2.1093 – RF EXPOSURE ..................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 13 FCC §15.207 (A) – AC LINE CONDUCTED EMISSIONS .................................................................................... 14 APPLICABLE STANDARD ............................................................................................................................................ 14 EUT SETUP ................................................................................................................................................................ 14 EMI TEST RECEIVER SETUP ....................................................................................................................................... 14 TEST PROCEDURE ...................................................................................................................................................... 14 TRANSD FACTOR & MARGIN CALCULATION.............................................................................................................. 15 TEST DATA ..............................................................................................................................…

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Summary Inverted F Antenna Specification ITEM ANT SPEC Model Name 2.4G ANT Center Frequency Horizontal Vertical 2400MHz 2450MHz 2500MHz 2400MHz 2450MHz 2500MHz -1.26dBi -0.76dBi -0.58dBi -5.25dBi -2.46dBi -1.86dBi MAX. Gain -0.58dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 15.20mm Manufacture Shenzhen AngSi Technology Co.,Ltd. 6/F,Block B,Ding Xin Science Park,Hong Lang North No.2 Road,Bao An District,ShenZhen PRC Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Frequency (MHz) Gain(dBi) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Frequency (MHz) Gain(dBi) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs: Attestation of Global Compliance Co., Ltd.

Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS1221017-47569E-RF Test Photos Page 1 of 2 Photo of Conducted Emission Measurement Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS1221017-47569E-RF Test Photos Page 2 of 2 Photo of Radiated Emission Measurement (Below 1G) Photo of Radiated Emission Measurement (Above 1G)