2AZUU-1212True Wireless Earphones

85 mm85 mm Page size: 85 mm x 115 mm done by Impala Ser vices Limited TRUE WIRELESS EARPHONES Operation and safety notes IAN 387692_2101IAN 387692_2101 Distributed by / Distribuido por: Dongguan Tunno Electronics Technology Co., Ltd Model No. / Modelo Núm.: 1212 Version / Versión: 08 / 2021 FCC ID : 2AZUU-1212 Made in / Hecho en: China TRUE WIRELESS EARPHONES STSK 2 E5 387692_2101_US-EN_02.indb 1-2387692_2101_US-EN_02.indb 1-27/5/2021 13:487/5/2021 13:48 85 mm 387692_2101_US-EN_02.indb 3387692_2101_US-EN_02.indb 37/5/2021 13:487/5/2021 13:48 3US-EN Description of signal words . . . . . . . . . . . Page 5 Customer service . . . . . . . . . . . . . . . . . . . . . Page 5 Warning remarks and symbols used . . Page 6 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . Page 7 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . Page 8 Trademark notices . . . . . . . . . . . . . . . . . . . . Page 9 Scope of delivery . . . . . . . . . . . . . . . . . . . . . Page 10 You will need . . . . . . . . . . . . . . . . . . . . . . . . . Page 10 Description of parts . . . . . . . . . . . . . . . . . . . Page 11 Technical data . . . . . . . . . . . . . . . . . . . . . . . . Page 13 Important safety instructions . . . . . . . . . . Page 15 Safety instructions for built-in rechargeable batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 25 Prior to first use . . . . . . . . . . . . . . . . . . . . . . Page 29 Charging the charging/storage box battery Page 29 Charging the headphones . . . . . . . . . . . . . . Page 31 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 32 Charging/storage box . . . . . . . . . . . . . . . . . Page 32 387692_2101_US-EN_02.indb 3387692_2101_US-EN_02.indb 37/5/2021 13:477/5/2021 13:47 4US-EN Earphones . . . . . . . . . . . . . . . . . . . . . . . . . . Page 33 Turning on the headphones . . . . . . . . . . . . . Page 33 Turning off the headphones . . . . . . . . . . . . . Page 33 Manually turning off the headphones . . . . . Page 33 LED status . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 34 Pairing the headphones to each other . . . . . Page 34 Pairing the headphones with a Bluetooth device . . . . . . . . . . . . . . . . . . . . . . Page 35 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 36 Headset for phone calls / Playback control Page 37 Optical sensor . . . . . . . . . . . . . . . . . . . . . . . Page 40 Changing ear cushions . . . . . . . . . . . . . . . . Page 41 Cleaning and maintenance . . . . . . . . . . . . Page 42 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 42 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . Page 43 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 46 Three year limited warranty . . . . . . . . . . Page 47 387692_2101_US-EN_02.indb 4387692_2101_US-EN_02.indb 47/5/2021 13:477/5/2021 13:47 5US-EN DESCRIPTION OF SIGNAL WORDS WARNING WARNING indicates a hazardous situation that, if not avoided, could result in death or serious injury . CAUTION CAUTION indicates a hazardous situation that, if not avoided, could result in minor or moderate injury . NOTICE NOTICE indicates information considered important, but not hazard related (e .g . messages related to property damage) . 387692_2101_US-EN_02.indb 5387692_2101_US-EN_02.indb 57/5/2021 13:477/5/2021 13:47 6US-EN Warning remarks and symbols used The following warnings are used in this manual: WARNING EXPLOSION HAZARD! A warning with this symbol and word “WARNING! EXPLOSION HAZARD” indicates the potential threat of explosion . Failure to observe this warning may result in serious or fatal injuries and potential property damage . Follow the instructions in this warning to prevent serious injuries, a danger to life or property damage! This symbol reminds the user to wear suitable protective hand wear! Follow this warning to prevent hand injury by objects or contact with hot or chemical materials! A warning with this symbol notifies the user of possible hearing damage . Avoid listening at excessive volumes for prolonged periods . 387692_2101_US-EN_02.indb 6387692_2101_US-EN_02.indb 67/5/2021 13:477/5/2021 13:47 7US-EN Direct current / voltage “Qi“ and the Qi logo mark are trademarks of the Wireless Power Consortium (WPC) . The charging box built with Qi wireless charging technology .You can charge up the charging box via Qi wireless technology . This symbol means that the operating instructions must be read prior to using the product . TRUE WIRELESS EARPHONES ˜Introduction Congratulations on your purchase . You have selected a quality product . The instructions for use are a part of the product . They contain important information about the safety, use and disposal of the product . Before using the product, please learn about all the safety information and usage instructions . Only use the product as described and for the specified applications . If you lend the product to someone else, please also give all the instructions . 387692_2101_US-EN_02.indb 7387692_2101_US-EN_02.indb 77/5/2021 13:477/5/2021 13:47 8US-EN ˜Intended use These headphones are a consumer electronics device . The headphones are intended for playback of audio material via a Bluetooth ® connection . If the headphones are connected to a smartphone, the headphones can also be used as a headset . The charging and storage box is intended solely for charging and storing the headphones . The product is intended for private use only . Any other use beyond what is specified is not intended . Do not use the product for industrial or commercial purposes . Any claims for damages resulting from unintended use, improper repairs, unauthorized modifications or the use of unapproved replacement parts are excluded . The user carries the sole risk . 387692_2101_US-EN_02.indb 8387692_2101_US-EN_02.indb 87/5/2021 13:477/5/2021 13:47 9US-EN ˜Trademark notices USB ® is a registered trademark of USB Impleme…

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4 055334 391757 2.3.1. 3 hrs 4 055334 391757 TRUE WIRELESS EARPHONES With voice control via Siri and Google Assistant TRUE WIRELESS EARPHONES LB 6 Fließtext: 6 Pt Fotos: - - - CGI: 2 x Lithium polymer technology No memory effect Low self-discharge Constant high performance Efficient and environmentally friendly 4 055334 391757 TRUE WIRELESS EARPHONES Mit Sprachsteuerung über Siri und Google Assistant • Ladebo x mit integriertem Li-Polymer- Akku (400 mAh) - lädt die Kopfhörer beim Tr ansport • Bedienelement direkt am Kopfhörer für Musikst euerung und Anrufverwaltung • Drah tloses Aufl aden der Ladebo x auch mit QI-kompatibler Ladematt e möglich*** • Vollständig geladene Ladebox ermöglicht 5 Ladevorgänge der Kopfhörer • Kopfhörer mit integrierten Li-Polymer-Akkus (je 40 mAh) für bis zu 3 Stunden Musik* • Inkl. USB-Ladek abel für die Aufbewahrungs- und Ladebox, Ohrp olster (klein, mitt el, gr oß) so wie Anleitung + Quick-Start- Anleitung • Einge baute optische Sensoren für aut omatische Tonwiedergabe, w enn die Kopfhörer in den Ohren stecken, oder S topp/Pause, w enn die Kopfhörer aus den Ohren entfernt wer den • Bluet ooth® v5. 0 • Un terstützte Bluetooth®-Profile: A2DP**, HF P, HSP , AVRCP** • Frequenzbereich: ca. 20– 20.000 Hz Achtung: Das Hören von Musik mit Kopfhörern über einen längeren Zeitraum bei hoher Lautstärk e kann zu Hörschäden führen. *Bei mittlerer Lautstärk e / **Wenn vom Mobiltelefon unter stützt / ***Ladematte nicht enthalten TRUE WIRELESS EARPHONESS With voice control via Siri and Google Assistant • Charging case with built-in LiPo battery pack ( 400mAh) - charges your headphones while you are out and about • Controls on the headphones for music and managing calls • The charging case can also be charged wirelessly using QI- compatible charging pads*** • 5 charging cycles with a fully charged case • Headphones with built-in Li-Polymer r echargeable batteries (40mAh each) for up to 3 hours of music* • Includes USB charging cable for the charging case, ear cushions (small, medium, lar ge) plus instructions and quick start guide • Built-in optical sensors for aut omatic sound reproduction when the earphones are in the ears, or S top/Pause when earphones are removed from the ears • Bluetooth® v5.0 • Supported Bluetooth® pro files: A2DP**, HFP, HSP, AVRCP** • Frequency range: approx. 20 - 20, 000Hz Warning: List ening to music with headphones at a high volume for long periods of time can damage your hearing. *At medium v olume / **If support ed by your mobile phone / ***Charging pad not included TRUE WIRELESS EARPHONES Med stemmestyring via Siri og Google Assistant • Opladningsboks med integreret litium-polymer-batteri (400 mAh) - oplader høretelefonerne under transporten • Betjeningselement direkte på høretelefonerne til styring af musik og opkald • Opladningsæsken ka n oplades trådløst med QI-kompatibel opladningsmåtte*** • En fuldstændigt opladet opladningsboks muliggør 5 opladninger af høretelefonerne • Høretelefoner med integrerede genopladelige litium-polymer batterier ( 40 mAh/stk.) til op til 3 timers musik* • Inkl. USB-opladningskabel til opbevarings- og opladningsboksen, ørepolster (lille, mellem, stor) samt ve jledning og vejledning til kvikstart • Indbyggede optiske sensorer til automatisk gengivelse af lyde, når høretelefonerne er i ørerne, eller stop/pause, når høretelefonerne fjernes fra ørerne • Bluetooth®-enhed v5.0 • Understøtter følgende bluetooth®-profiler: A2DP**, HFP, HSP, AVRCP** • Frekvensområde: ca. 20 - 20.000 Hz Advarsel! At lytte til musik med høretelefoner i længere tid og ved høj lydstyrke kan medføre høreskader. *ved middel lydstyrke / **hvis den understøttes af mobiltelefonen / ***oplademåtten leveres ikke med ÉCOUTEURS TRUE WIRELESS Commande vocale via Siri et l’Assistant Google • Étui de recharge avec batterie lithium-polymère intégrée (400 mAh) – recharge les écouteurs pendant le transport • Commande sur les écouteurs pour commander la musique et gérer les appels • Recharge sans fil de l’étui également possible avec le tapis de recharge compatible QI*** • L’étui de recharge complètement chargé permet de charger 5 fois les écouteurs • Écouteurs avec batteries lithium-polymère (40 mAh chacune) pour jusqu’à 3 heures de musique* • Câble de charge USB pour l ’étui de rangement et de recharge, coussinets intra-auriculaires (petits, mo yens, gr ands), mode d’emploi et un guide de démarrage rapide inclus • Cap teurs optiques intégrés pour une reproduction sonore automatique lorsque les écouteurs sont dans les oreilles, ou arrêt/pause lorsque les écouteurs sont retirés des oreilles • Bluetooth® v5.0 • Profils Bluetooth® pris en charge : A2DP**, HFP, HSP , AVRCP** • Plage de fréquences : env. 20 - 20 000 Hz Attention : une écoute prolongée de musique avec des écouteurs et à fort volume peut provoquer des dommages auditifs. *à volume sonore moyen / **si pris en charge par le téléphone portable / ***tapis de charge non inclus TRUE WIRELESS EARPHONES M et stembesturing via Siri en Google Assistant • Oplaadbox met geïntegreerde li-polymeer-accu (400 mAh) - laadt de oordopjes op tijdens het transport • Bediening rechtstreeks op het oordopje vo or muziek en oproepen • Draadloos laden van de laadbox is ook mogelijk met QI-compatibele laadmat*** • Volledig opgeladen oplaadbox maakt 5 keer opladen van de oordopjes mogelijk • Oordopjes met geïntegreerde li-polymeer-accu‘s (à 40 mAh) voor tot 3 uur muziek luisteren* • Inclusief USB-laadkabel voor de opberg- en oplaadbox, oorkussentjes (klein, medium, groot) en gebruiksaanwijzing + Quick-Start-handleiding • Ingebouwde optische sensoren voor automatisch a fspelen wanneer de oordopjes in de oren zitten of stop/pauze wanneer de oordopjes uit de oren wordt gehaald • Bluetooth® v5.0 • Ondersteunde Bluetooth®-profielen: A2DP**, HFP, HSP, AVRCP** • Frequentiebereik: ca. 20 - 20.000 Hz Let op: Luisteren naar muziek met een hoofdtelefoon gedurende lange tijd bij hoog volume kan gehoorbeschadiging veroorzaken. *Op gemiddeld…

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Dongguan Tunno Electronics Technology Co., Ltd Date: 2021-04-21 TO: Federal Communication Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MID 21046 Regarding: FCC ID: 2AZUU-1212 To whom it may concern: We, the undersigned, hereby authorize SGS-CSTC Standards Technical Services Co., Ltd. (SGS) Shenzhen Branch and Keny Xu in SGS-CSTC Standards Technical Services Co., Ltd. (SGS) Shenzhen Branch to act on our behalf in all manners relating to application for equipment authorization with respect to the FCC ID above, including signing of all documents relating to these matters. Any and all acts carried out by the agent on our behalf shall have the same effect as acts of our own. 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. 853(a). Where our agent signs the application for certification on our behalf, I acknowledge that all responsibility for complying with the terms and conditions for Certification, as specified by SGS North America, Inc., still resides with Dongguan Tunno Electronics Technology Co., Ltd. This authorization is valid until further written notice from the applicant. Print Name: Julia Mei Title: Sales Manager Signature: On behalf of Company: Dongguan Tunno Electronics Technology Co., Ltd Telephone: 86-769-26622396 E-mail: [email protected]

Date: 2021-04-21 To: Federal Communications Commission Office of Engineering and Technology Laboratory Division 7435 Oakland Mills Rd. Columbia MD 21046 From: Dongguan Tunno Electronics Technology Co., Ltd Regarding: Confidentiality Request regarding application for FCC ID: 2AZUU-1212 LONG TERM CONFIDENTIALITY Pursuant to 47 CFR Section 0.459 and 0.457 of the commission’s rules, the applicant hereby requests confidential treatment of the documents listed below, associated with the certification application referenced above. Schematic(s) Block Diagrams Operational Descriptions The documents above contain proprietary information not released to the public. Public disclosure of this information may prove harmful to the business of the applicant. SHORT TERM CONFIDENTIALITY Additionally, the applicant requests the following documents be held confidential until the device is marketed or 180 days from the grant date whichever is less. If the device is marketed within confidential period, the applicant will notify the TCB per FCC KDB 726920 D01 Confidentiality Request Procedures. External Photos Internal Photos Test Setup Photos User manual(s) Print Name: Julia Mei Title: Sales Manager Signature: On behalf of Company: Dongguan Tunno Electronics Technology Co., Ltd Telephone: 86-769-26622396 E-mail: [email protected]

Applicant Declaration Applicant Declaration Rev:0.0 SGS North America Inc. 620 Old Peachtree Road SUITE 100 Suwanee, Georgia 30024 United States Applicant Legal Business Name Dongguan Tunno Electronics Technology Co., Ltd Address Room 201, 2nd Building, No. 153 Wenzhou Road, Dongcheng Street, Dongguan, China Grantee Code 2AZUU FCC ID 2AZUU-1212 Authorized Contact Name Julia Mei Contact Email [email protected] Contact Phone 86-769-26622396 I, the undersigned, certify that I am an authorized signatory for the Applicant and therefore declare; a) in accordance with 47CFR2.911(d), all of the statements herein and the exhibits attached hereto are true and correct to the best of my knowledge and belief. b) in accepting a Grant of Equipment Authorization issued by a TCB, under the authority of the FCC, as a result of the representations made in this application, the Applicant is responsible for: (1) labeling the equipment with the exact FCC ID as specified in this application, (2) compliance statement labeling pursuant to the applicable rules, (3) compliance of the equipment with the applicable technical rules, c) if the Applicant is not the actual manufacturer of the equipment, appropriate arrangements have been made with the manufacturer to ensure that production units of this equipment will continue to comply with the FCC’s technical requirements. d) in accordance with 47 CFR 2.909 and KDB394321, the Applicant has read, understood and agrees to accept that they are the responsible party and agree to abide by their responsibilities as specified under 47 CFR 2.909 and KDB394321. e) in accordance with ISO17065, FCC KDB641163, FCC KDB610077, KDB394321 and RSP-100, the Applicant has read, understood, accepts and agrees to abide by the post market surveillance requirements. (1) the Applicant understands, accepts and agrees that a sample may be requested for surveillance testing. (2) the Applicant shall make provisions to always have a production sample available upon request by SGS, FCC and/or ISED. (3) the Applicant shall, upon request by SGS, at the Applicant’s expense, provide a production sample of the requested product to SGS, FCC and/or ISED as instructed. The sample shall include all support devices, cables, software, accessories or other hardware or software required for evaluation, review, certification and audit surveillance of products certified by SGS. f) neither the Applicant nor any party to the application is 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 because of a conviction for possession or distribution of a controlled substance. See 47CFR 1.2002(b) for the definition of a “party” for these purposes. g) the Applicant has read, understood, accepts and agrees to abide by the SGS North America, Inc.(TCB) terms and conditions. Link to CFRs: https://www.fcc.gov/wireless/bureau-divisions/technologies-systems-and-innovation-division/rules-regulations-title-47 Link to KDBs: https://apps.fcc.gov/oetcf/kdb/index.cfm Link to RSP-100: https://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf01130.html Applicant Signature: Date: May 5 2021 Print Name: Julia Mei Title: Sales Manager *NOTE: This declaration cannot be signed by an Agent, it shall be signed by an authorized person listed in the FCC database

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 1 of 7 External Photos for SZCR2104020508AT FCC ID: 2AZUU-1212 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 2 of 7 1 EUT Constructional Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 3 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 4 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 5 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 6 of 7 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 7 of 7

Dongguan Tunno Electronics Technology Co., Ltd Label placement To Federal Communication Commission Equipment Authorization Branch 7 435 Oakland Mills Road Columbia, MID 21046 For the following product, Model Name/Number: 1212/ True Wireless Earphones FCC ID: 2AZUU-1212 The FCC ID is not affixed on the product itself, but described in the product user manual and the product package/case due to below reasons. Reasons： The product is too small to put the label on it. The Size is below: 52 mm* 27 mm* 54 mm Print Name: Julia Mei Title: Sales Manager Signature: On behalf of Company: Dongguan Tunno Electronics Technology Co., Ltd Telephone: 86-769-26622396 E-mail: [email protected]

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 1 of 9 Internal Photos for SZCR2104020508AT FCC ID: 2AZUU-1212 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 2 of 9 1 EUT Constructional Details SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 3 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 4 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 5 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 6 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 7 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 8 of 9 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Page: 9 of 9

SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050803 Page: 1 of 7 Keny Xu EMC Laboratory Manager 1 Cover page SAR Evaluation Report Application No.: SZCR2104020508AT Applicant: Dongguan Tunno Electronics Technology Co., Ltd Address of Applicant: Room 201, 2nd Building, No. 153 Wenzhou Road, Dongcheng Street Dongguan, China Manufacturer: Dongguan Tunno Electronics Technology Co., Ltd Address of Manufacturer: Room 201, 2nd Building, No. 153 Wenzhou Road, Dongcheng Street Dongguan, China Equipment Under Test (EUT): EUT Name: True Wireless Earphones Model No.: 1212 FCC ID: 2AZUU-1212 Standards: 47 CFR Part 1.1307 47 CFR Part 2.1093 KDB447498D01 General RF Exposure Guidance v06 Date of Receipt: 2021-04-14 Date of Test: 2021-04-17 to 2021-04-26 Date of Issue: 2021-05-08 Test Result : Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050803 Page: 2 of 7 2 Version Revision Record Version Chapter Date Modifier Remark 01 2021-05-08 Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050803 Page: 3 of 7 3 Contents Page 1 COVER PAGE .............................................................................................................................................. 1 2 VERSION ...................................................................................................................................................... 2 3 CONTENTS .................................................................................................................................................. 3 4 GENERAL INFORMATION .......................................................................................................................... 4 4.1 GENERAL DESCRIPTION OF EUT ............................................................................................................. 4 4.2 TEST LOCATION ...................................................................................................................................... 5 4.3 TEST FACILITY ........................................................................................................................................ 5 4.4 DEVIATION FROM STANDARDS ................................................................................................................. 5 4.5 ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................... 5 4.6 OTHER INFORMATION REQUESTED BY THE CUSTOMER ............................................................................. 5 5 SAR EVALUATION ...................................................................................................................................... 6 5.1 RF EXPOSURE COMPLIANCE REQUIREMENT ............................................................................................ 6 5.1.1 Standard Requirement ..................................................................................................................... 6 5.1.2 Limits ................................................................................................................................................ 6 5.1.3 EUT RF Exposure ............................................................................................................................ 6 SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050803 Page: 4 of 7 4 General Information 4.1 General Description of EUT Power supply: DC 5V from adapter input AC 230V/50Hz Lithium Ion Battery: DC 3.7V 40mAh rechargeable battery which charged by charging case for left earbud and right earbud Lithium Ion Battery: DC 3.7V 400mAh 1.48Wh rechargeable battery which charged by USB port for charging case Cable(s): Type C cable:61cm unshielded Operation Frequency: 2402MHz to 2480MHz Bluetooth Version: V5.0 Modulation Type: GFSK, Pi/4DQPSK, 8DPSK Number of Channels: 79 Channel Spacing: 1MHz Spectrum Spread Technology: Frequency Hopping Spread Spectrum(FHSS) Antenna Type: PCB Antenna Antenna Gain: 0.8dBi SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050803 Page: 5 of 7 4.2 Test Location All tests were performed at: SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch No. 1 Workshop, M-10, Middle section, Science & Technology Park, Shenzhen, Guangdong, China 518057 Telephone: +86 (0) 755 2601 2053 Fax: +86 (0) 755 2671 0594 No tests were sub-contracted. 4.3 Test Facility The test facility is recognized, certified, or accredited by the following organizations: • A2LA (Certificate No. 3816.01) SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory is accredited by the American Association for Laboratory Accreditation(A2LA). Certificate No. 3816.01. • VCCI The 3m Fully-anechoic chamber for above 1GHz, 10m Semi-anechoic chamber for below 1GHz, Shielded Room for Mains Port Conducted Interference Measurement and Telecommunication Port Conducted Interference Measurement of SGS-CSTC Standards Technical Services Co., Ltd. have been registered in accordance with the Regulations for Voluntary Control Measures with Registration No.: G-20026, R-14188, C-12383 and T-11153 respectively. • FCC –Designation Number: CN1178 SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized as an accredited testing laboratory. Designation Number: CN1178. Test Firm Registration Number: 406779. • Innovation, Science and Economic Development Canada SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized by ISED as an accredited testing laboratory. CAB identifier: CN0006. IC#: 4620C. 4.4 Deviation from Standards None. 4.5 Abnormalities from Standard Conditions None. 4.6 Other Information R…

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SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 1 of 140 Keny Xu EMC Laboratory Manager TEST REPORT Application No.: SZCR2104020508AT Applicant: Dongguan Tunno Electronics Technology Co., Ltd Address of Applicant: Room 201, 2nd Building, No. 153 Wenzhou Road, Dongcheng Street Dongguan, China Manufacturer: Dongguan Tunno Electronics Technology Co., Ltd Factory: Room 201, 2nd Building, No. 153 Wenzhou Road, Dongcheng Street, Dongguan, China Equipment Under Test (EUT): EUT Name: True Wireless Earphones Model No.: 1212 FCC ID: 2AZUU-1212 Standard(s) : 47 CFR Part 15, Subpart C 15.247 Date of Receipt: 2021-04-14 Date of Test: 2021-04-17 to 2021-04-26 Date of Issue: 2021-05-08 Test Result: Pass* * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 2 of 140 Revision Record Version Chapter Date Modifier Remark 01 2021-05-08 Original Authorized for issue by: Bill Chen/Project Engineer Eric Fu/Reviewer SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 3 of 140 2 Test Summary Radio Spectrum Technical Requirement Item Standard Method Requirement Result Antenna Requirement 47 CFR Part 15, Subpart C 15.247 N/A 47 CFR Part 15, Subpart C 15.203 & 15.247(b)(4) Pass Other requirements Frequency Hopping Spread Spectrum System Hopping Sequence N/A 47 CFR Part 15, Subpart C 15.247(a)(1),(g),(h) Pass Radio Spectrum Matter Part Item Standard Method Requirement Result Conducted Peak Output Power 47 CFR Part 15, Subpart C 15.247 ANSI C63.10 (2013) Section 7.8.5 47 CFR Part 15, Subpart C 15.247(b)(1) Pass 20dB Bandwidth ANSI C63.10 (2013) Section 7.8.7 47 CFR Part 15, Subpart C 15.247(a)(1) Pass Carrier Frequencies Separation ANSI C63.10 (2013) Section 7.8.2 47 CFR Part 15, Subpart C 15.247a(1) Pass Hopping Channel Number ANSI C63.10 (2013) Section 7.8.3 47 CFR Part 15, Subpart C 15.247a(1)(iii) Pass Dwell Time ANSI C63.10 (2013) Section 7.8.4 47 CFR Part 15, Subpart C 15.247a(1)(iii) Pass Conducted Band Edges Measurement ANSI C63.10 (2013) Section 7.8.6 47 CFR Part 15, Subpart C 15.247(d) Pass Conducted Spurious Emissions ANSI C63.10 (2013) Section 7.8.8 47 CFR Part 15, Subpart C 15.247(d) Pass Radiated Emissions which fall in the restricted bands ANSI C63.10 (2013) Section 6.10.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Below 1GHz ANSI C63.10 (2013) Section 6.4,6.5 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass Radiated Spurious Emissions Above 1GHz ANSI C63.10 (2013) Section 6.6 47 CFR Part 15, Subpart C 15.205 & 15.209 Pass SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch Report No.: SZCR210402050802 Page: 4 of 140 3 Contents Page 1 COVER PAGE ............................................................................................................................................ 1 2 TEST SUMMARY ....................................................................................................................................... 3 3 CONTENTS ................................................................................................................................................ 4 4 GENERAL INFORMATION ........................................................................................................................ 6 4.1 DETAILS OF E.U.T. ............................................................................................................................... 6 4.2 DESCRIPTION OF SUPPORT UNITS ......................................................................................................... 7 4.3 MEASUREMENT UNCERTAINTY .......................…

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