2A82XGDA889KWireless Bluetooth headset

FCC Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)This device may not cause harmful interference. (2)This device must accept any interference received, including interference that may cause undesired operation. 2.Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Note:This equipment has been tested and found to comply with the limits for a class B digital device,pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequence 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 equipmemt 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 autlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help.

Tomauri Inc. Declaration on model difference We the undersigned hereby confirm that these models are identical, and all models have the same RF module and antenna, PCB layout , schematics and component. the difference is the model Numbers and color of appearance. Production name FCC ID Model no. Wireless Bluetooth headset 2A82XGDA889K GDA889K, GDA889W Sincerely, Rob Sprumont General Manager Tomauri Inc. 2750 John Street, Unit 2, Markham, Ontario, L3R 2W4, Canada

Tomauri Inc. 2022-10-26 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (EUT Name: Wireless Bluetooth headset /Model: GDA889K, GDA889W /FCC ID: 2A82XGDA889K) 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 (Block Diagram ,Operational Description,Schematics) required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Sincerely, Rob Sprumont General Manager Tomauri Inc. 2750 John Street, Unit 2, Markham, Ontario, L3R 2W4, Canada

Tomauri Inc. 2022-10-26 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 DongGuan Anci Electronic Technology 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, Sincerely, Rob Sprumont General Manager Tomauri Inc. 2750 John Street, Unit 2, Markham, Ontario, L3R 2W4, Canada

Product Name: Wireless Bluetooth Headset Model: GDA889K, GDA889W Type-C Input: DC5V, 0.5A FCC ID: 2A82XGDA889K Manufacturer: Shenzhen Kingree Electronic Co., Ltd Made in China

ANT

产品规格承认书 SPECIFICATIONS 客户： CUSTOMER: 产品名称： DESCRIPTION: 客户型号： CUSTOMER PART NO: 产品型号： OUR MODEL NO: 日期： DATE: 双极天线dipole antenna PBX3216MA01 2019/10/28 PAGE 1 OF 10 PBX3216MA01 Specification Operating Temp. : -40 ° C--+85 ° C 1.FEATURES: • Light weight, compact • Wide bandwidth, low cost • Built-in antenna with high gain 2.APPLICATIONS: • Bluetooth, Wireless LAN, Mobile TV • Home RF System, etc 3. PRODUCT IDENTIFICATION 曰巴丿!曰尸尸了一曰曰了了 — (1) (2) (3) (1) Product type: Multilayer chip Antenna (2) Center Frequency: 2450MHz (3) External Dimensions (LxW) (mm): 3.2*1.6 4. SHAPE AND DIMENSIONS: L 1 '· -- w t A tA I I H 1 3. 2士 :o. 2 I 1. 6:0. 2 I o. 52士�0- 1 I。4:0.1 PAGE 2 OF 10 单位 Unit ： mm ANT『 | 天线 c::::J PAD 匕二二］ 底层诮铜 c::J 顶层浦银］ 』 f 53 」 0 .5 0 . 9 5 丿 」 。 6 丁 1 厂尸2.07 ｀ PAGE 3 OF 10 檄 ． • [ ． 尸 ] .. · } 曼 4 � • ． • 言二 』 · 天线 PAD 底层铺铜 顶层铺铜 打孔 褒 ． • • ． ． ： ． ． • • ． ． ． ． ． ． ． APPLICATION GUIDE Antenna LNA Balance-Filter SPF 5. SPECIFICATIONS: 测试项ITEM 规格specifications 带宽 BW 2400 "' 2483Mllz 极化方式 Polarity 线极化 Linear polarization ＊ 最大增益 Max Gain 2.67dBi ＊效 率efficiency 72.30% 输入阻抗input impeda nce 50 Q * Test condition: Test board size 90*40 mm Matching circuit: Pi matching circuit will be required PAGE 4 OF 10 6. Electrical Characteristics : 回波损耗 Return loss 驻波比SWR Mark rrequency 1 2400 MHz 2 2440 MIiz 3 2480 MHz VSWR 1. 513 1. 068 1.464 PAGE 5 OF 10 Radiation Pattern The Gain pattern is measured in FAR-field chamber. OUT is placed on the table of rotator.a standard horn antenna and Vector Network Analyzer is used to collect data. Y Agilent 8960 Series I 0 (ESSISC) © 效率 efficiency Efficienc y (% ) 80.00 70.00 60.00 64.10 50.00 40.00 30.00 20.00 10.00 0.00 2360.0 2380.0 2400.0 2420.0 2440.0 最大增益Max Gain PeakGain (dBi) 3.00 2.50 2.00 2.14 1.50 1.82 1.00 0.50 0.00 2360.0 2380.0 2400.0 2420.0 2440.0 2460.0 1.65 2460.0 61.40 5 9 . 1 0 1-57.50 2480.0 2500.0 2520.0 1.81 1 88 1.77 2480.0 2500.0 2520.0 PAGE 6 OF 10

RF EXPOSURE EVALUATION EUT Specification EUT Wireless Bluetooth headset Model Number GDA889K FCC ID 2A82XGDA889K Antenna gain (Max) 2.67dBi Operation Frequency BT: 2402-2480MHz Input Rating DC 5V, DC 3.7V Classification Per Stipulated Test Standard §15.247(i), §2.1093 Modulation GFSK, π/4-DQPSK Max. output power -4.17dBm(0.383mW) Test Requirement: According to §15.247(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. Routine SAR evaluation refers to that specifically required by §2.1093, using measurements or computer simulation. When routine SAR evaluation is not required, portable transmitters with output power greater than the applicable low threshold require SAR evaluation to quality for TCB approval. One antenna is available for the EUT. The minimum separation distance is 5mm. BT DSS: According to KDB 447498, no stand-alone required for BT antenna, and no simultaneous SAR measurement is required. Signature: Tiger Xu Date: 2022-10-26 Transmit Frequency (MHz) Mode Measured Power (dBm) Tune up Power (dBm) Max tune up power(dBm) Calculation Result 1-g SAR 2402 GFSK -4.63 -4±1 -3 -1.435151 3 2441 GFSK -5.82 -6±1 -5 -1.818226 3 2480 GFSK -7.00 -7±1 -6 -2.204722 3 2402 Π/4-DQ PSK -4.17 -4±1 -3 -1.292565 3 2441 Π/4-DQ PSK -5.25 -5±1 -4 -1.640488 3 2480 Π/4-DQ PSK -6.26 -6±1 -5 -1.971652 3

TRF No.: 01-R001-3A-BT TRF Originator: GTG TRF Date: 2022-06-29 Web: www.gtggroup.com E-mail: [email protected] Tel.: 86-400 755 8988 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART C REQUIREMENT OF Wireless Bluetooth headset Model No.: GDA889K, GDA889W Trademark: ToGo, iStore, BlueDiamond FCC ID: 2A82XGDA889K Report No.: E01A22090815F00101 Issue Date: October 26, 2022 Prepared for Tomauri Inc. 2750 John Street, Unit 2, Markham, Ontario, L3R 2W4, Canada Prepared by Dong Guan Anci Electronic Technology Co., Ltd. 1-2 Floor, Building A, No.11, Headquarters 2 Road, Songshan, Lake Hi-tech Industrial Development Zone, Dongguan City, Guangdong Pr., China. This report shall not be reproduced, except in full, without the written approval of Dong Guan Anci Electronic Technology Co., Ltd. 2 of 71 Report No.: E01A22090815F00101 TRF No.: 01-R001-3A-BT Global Testing , Great Quality. VERIFICATION OF COMPLIANCE Applicant: Tomauri Inc. 2750 John Street, Unit 2, Markham, Ontario, L3R 2W4, Canada Manufacturer: Shenzhen Kingree Electronic Co.,Ltd Floor 3, Bohua Technology Building, Shangwei Industrial Park, Shangkeng Community, Guanhu Street, Longhua District, Shenzhen Product Description: Wireless Bluetooth headset Trademark: ToGo, iStore, BlueDiamond Model Number: GDA889K, GDA889W We hereby certify that: The above equipment was tested by Dong Guan Anci Electronic Technology Co., Ltd.The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10-2013 and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.247(2021). Date of Test : October 08, 2022 to October 21, 2022 Prepared by : Duke Liu /Editor Reviewer & Authorized Signer : Tiger Xu / Supervisor 3 of 71 Report No.: E01A22090815F00101 TRF No.: 01-R001-3A-BT Global Testing , Great Quality. Modified Information Version Summary Revision Date Report No. Ver.1.0 Original Report / E01A22090815F00101 4 of 71 Report No.: E01A22090815F00101 TRF No.: 01-R001-3A-BT Global Testing , Great Quality. Table of Contents 1. GENERAL INFORMATION ............................................................................................................ 6 1.1 PRODUCT DESCRIPTION .............................................................................................................................6 1.2 TEST METHODOLOGY ..................................................................................................................................6 1.3 TEST FACILITY .............................................................................................................................................7 2. SYSTEM TEST CONFIGURATION .............................................................................................. 8 2.1 EUT CONFIGURATION .................................................................................................................................8 2.2 EUT EXERCISE ............................................................................................................................................8 2.3 TEST PROCEDURE .......................................................................................................................................8 2.4 CONFIGURATION OF TESTED SYSTEM .......................................................................................................9 3. SUMMARY OF TEST RESULTS ................................................................................................. 10 4. DESCRIPTION OF TEST MODES .............................................................................................. 11 5. TEST SYSTEM UNCERTAINTY ................................................................................................. 12 6. CONDUCTED EMISSIONS TEST ............................................................................................... 13 6.1 MEASUREMENT PROCEDURE: ..................................................................................................................13 6.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .........................................................................13 6.3 MEASUREMENT EQUIPMENT USED: .........................................................................................................13 6.4 MEASUREMENT RESULT: ..........................................................................................................................13 6.5 CONDUCTED MEASUREMENT PHOTOS: ...................................................................................................16 7. RADIATED EMISSION TEST ...................................................................................................... 17 7.1 MEASUREMENT PROCEDURE ...................................................................................................................17 7.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) .........................................................................19 7.3 MEASUREMENT EQUIPMENT USED: .........................................................................................................20 7.4 RADIATED EMISSION LIMIT ........................................................................................................................21 7.5 MEASUREMENT RESULT ...........................................................................................................................22 7.5 RADIATED MEASUREMENT PHOTOS:........................................................................................................29 8. CHANNEL SEPARATION TEST ................................................................................................. 30 8.1 MEASUREMENT PROCEDURE ...................................................................................................…

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