2BKTL-CHRTOUCHChromeTouch ANC Earbuds

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Local Representative Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(7), of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC IDModel name 2BKTL-CHRTOUCHCHR-SMART-TOU-BLK, CHR-SMART-TOU-WHT We hereby acknowledge as follows: i.both signees confirm that the point of contact accepts responsibility to act as a US- American Representative on behalf of the applicant ii.the point of contact provides the physical U.S. address and email as listed below iii.both parties maintain the requirements of this agreement for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. iv.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. US-American Point of ContactApplicant/Approval Holder Signature Date: 2026-08-11 Signature Date: 2026-08-11 Company Name:SimplyTech Electronics, Inc.SimplyTech Electronics, Inc. FRN:00359056290035905629 Contact Name:Sal HamraSal Hamra Address:1407 Broadway Suite 1703, New York, United states,10018 1407 Broadway Suite 1703, New York, United states,10018 Phone:(347) 628-3618(347) 628-3618 Email:[email protected]@simplytechcorp.com

Page 1 of 3 FCC ID: 2BKTL-CHRTOUCH External Photos Page 2 of 3 FCC ID: 2BKTL-CHRTOUCH Page 3 of 3 FCC ID: 2BKTL-CHRTOUCH

Label FCC ID: 2BKTL-CHRTOUCH

Page 1 of 2 FCC ID: 2BKTL-CHRTOUCH Internal Photos Chip ANT Page 2 of 2 FCC ID: 2BKTL-CHRTOUCH

Page 1 of 7 Report No.: AiTDG-260811004FW2 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited. If there is a need to alter or revise this document, the right belongs to Dongguan Yaxu (AiT) Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. RF Exposure evaluation Product Name:ChromeTouch ANC Earbuds Brand Name:Zero Statik Model:CHR-SMART-TOU-BLK Series Model: CHR-SMART-TOU-WHT FCC ID:2BKTL-CHRTOUCH Applicant:SIMPLYTECH ELECTRONICS.INC. Address: 1407 BROADWAY SUITE 1703NEW YORK, NY 10018 United States Manufacturer:Dongguan Jiangqi Electronic Technology Co., Ltd Address: Building B1, West City Area, Shichong Village, Hengli Town, Dongguan City, Guangdong Province Standard(s): 47CFR §1.1310, 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 Date of Receipt:Jul. 01, 2026 Date of Test:Jul. 01, 2026~ Jul. 13, 2026 Issued Date:Aug. 11, 2026 Issued By: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China Tel.: +86-769-8202 0499 Fax.: +86-769-8202 0495 Reviewed by: Approved by: Emiya Lin Simba Huang Page 2 of 7 Report No.: AiTDG-260811004FW2 Report Revise Record Report VersionIssued DateNotes M0Aug. 11, 2026Initial Release Page 3 of 7 Report No.: AiTDG-260811004FW2 Contents 1GENERAL INFORMATION........................................................................................................................................4 1.1ENVIRONMENTAL CONDITIONS........................................................................................................................................4 1.2GENERAL DESCRIPTION OF EUT......................................................................................................................................4 1.3TEST FACILITY..............................................................................................................................................................5 1.4MEASUREMENT UNCERTAINTY........................................................................................................................................5 2METHOD OF MEASUREMENT..................................................................................................................................6 2.1APPLICABLE STANDARD.................................................................................................................................................6 2.2EVALUATION METHOD AND LIMIT...................................................................................................................................6 2.3MANUFACTURING TOLERANCE.......................................................................................................................................7 2.4EVALUATION RESULT....................................................................................................................................................7 2.5CONCLUSION...............................................................................................................................................................7 Page 4 of 7 Report No.: AiTDG-260811004FW2 1GENERAL INFORMATION 1.1Environmental conditions During the measurement the environmental conditions were within the listed ranges: Normal Temperature:25°C Relative Humidity:55 % Air Pressure:101 kPa 1.2General Description of EUT Product Name:ChromeTouch ANC Earbuds Model/Type reference: CHR-SMART-TOU-BLK Serial Model: CHR-SMART-TOU-WHT Model difference All models are same as the samples except model name, all the models are electrical identical same mechanical structure and design. Power Ratings:DC 3.7V from battery or DC 5V from external circuit Hardware Version: N/A Software Version:N/A Sample(s) Status: AiTDG-260811004-1(Normal sample) AiTDG-260811004-2(Engineer sample) Bluetooth: Supported type: Bluetooth BR/EDR Modulation: GFSK, π/4DQPSK, 8DPSK Operation frequency: 2402MHz~2480MHz Channel number: 79 Channel separation: 1MHz Antenna type: Chip antenna Antenna gain: 2.70dBi Remark: The above DUT's information was declared by manufacturer. For more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. Page 5 of 7 Report No.: AiTDG-260811004FW2 1.3Test Facility Test Laboratory: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China The test facility is recognized, certified or accredited by the following organizations: CNAS-Registration No: L6177 Dongguan Yaxu (AiT) technology Limited is accredited to ISO/IEC 17025:2017 general Requirements for the competence of testing and calibration laboratories (CNAS-CL01 Accreditation Criteria for the competence of testing and calibration laboratories) on April 18, 2022 FCC-Registration No.: 703111 Designation Number: CN1313 Dongguan Yaxu (AiT) Technology Limited has been registered and fully described in a report filed with the (FCC) Federal Communications Commission. The acceptance letter from the FCC is maintained in our files. IC-Registration No.: 6819A CAB identifier: CN0122 The 3m Semi-anechoic chamber of Dongguan Yaxu (AiT) Technology Limited has been registered by Certification and Engineering Bureau of Industry Canada for radio equipment testing with Registration No.: 6819A A2LA-Lab Cert. No.: 6317.01 Dongguan Yaxu (AiT) Technology Limited has been accredited by A2LA for technical competence in the field of electrica…

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2.4GHz1608ChipAntenna:RANT1608F245C04 _ Application: WLAN,802.11b/g,Bluetooth,WLAN,etc... Features SMD,highreliability,ultraImpact,Omni-directional... PartnumberInformation RANT1608F245C04 (A)(B)(C)(D)(E)(F) ElectricalSpecification DimensionandTerminalConfiguration No.TerminalName 1Feeding/GNG 2GND/Feeding (A)ProductTypeChipAntenna (B)SizeCode 1.6x0.8mm( ± 0.1mm) (C)MaterialHighKmaterial (D)Frequency2.4~2.5GHz (E)FeedingmodePIFA&SingleFeeding (F)AntennatypeType=04 WorkingFrequencyRange2400~2500MHz Bandwidth120MHz(Min.) PeakGain2.7dBi(Typ.) Impedance50Ohm Returnloss10dB(Min) PolarizationLinear AzimuthBeamwidthOmni-directional OperationTemperature( °C )-40~85 °C ResistancetoSolderingHeats 10sec.(@280 °C ) TerminationNi/Au(Leadless) Dimension(mm) L 1.60±0.10 W 0.80 ± 0.10 T 0.80 ± 0.10 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ 1 EvaluationBoardReference PCBDimensionAntennaLayoutReference Unit:mm ElectricalCharacteristics ReturnLoss&Radiation ELECTRICALCHARACTERISTICSS11 Radiation ElectricalCharacteristics Freque ncy EfficPercenGain 2400-1.6472.27%2.38 2450-1.3375.34%2.7 2500-1.5972.98%2.59 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ TapingSpecifications ReelandTapingSpecification ReelSpecification TYPESIZEABCD 16087”4K/Reel 4.0±0.5 4.0±213.5±0.5178±2 TappingSpecification PackagingTypeABWEFGHTψDP PaperType1608 1.90±0.203.50±0.208.0±0.201.75±0.103.5±0.054.0±0.102.0±0.050.75±0.10 1.50±0.10 4.0±0.1 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz1608ChipAntenna:RANT1608F245C04 _ ReliabilityTable TestItemProcedure Requirements CeramicType Remark (Reference) Electrical Characterization Fulfilltheelectrical specification UserSpec. Thermal Shock 1.Preconditioning: 50±10°C/1hr,thenkeepfor24±1hrsatroomtemp. 2.Initialmeasure:Spec:referInitialspec. 3.Rapidchangeoftemperaturetest: -30°Cto+85°C;100cycles; 15minutesatLowercategorytemperature; 15minutesatUppercategorytemperature. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 107 Temperature Cycling 1.Initialmeasure:Spec:referInitialspec. 2.100Cycles(-30°Cto+85°C),SoakMode=1(2Cycle/hours). 3.Measurementat24±2Hoursaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. JESD22 JA104 HighTemperature Exposure 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered;500hours@T=+85°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 LowTemperature Storage 1.Initialmeasure:Spec:referInitialspec. 2.Unpowered:500hours@T=-30°C. 3.Measurementat24±2hoursaftertest. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 108 Solderability (SMDBottomSide) Dippingmethod: a.Temperature:235±5°C b.Dippingtime:3±0.5s Thesoldershouldcover over95%ofthecritical areaofbottomside. IEC60384-21/22 4.10 SolderingHeat Resistance (RSH) Preheatingtemperature:150±10°C. Preheatingtime:1~2min. Soldertemperature:260±5°C. Dippingtime:5±0.5s NoVisibleDamage.IEC60384-21/22 4.10 Vibration5g'sfor20min.,12cycleseachof3orientations Note:Use8"X5"PCB.031"thick7securepointson,onelong sideand2securepointsatcornersofoppositesides.Parts mountedwithin2"fromanysecurepoint.Testfrom10-2000 Hz. NoVisibleDamage.MIL-STD-202 Method204 Mechanical Shock Threeshocksineachdirectionshallbeappliedalongthethree mutuallyperpendicularaxesofthetestspecimen(18shocks) Peakvalue:1,500g’s Duration:0.5ms Velocitychange:15.4ft/s Waveform:Half-sine NoVisibleDamage.MIL-STD-202 Method213 Humidity Bias 1.Humidity:85%R.H.,Temperature:85±2°C. 2.Time:500±24hours. 3.Measurementat24±2hrsaftertestcondition. NoVisibleDamage. Fulfilltheelectrical specification. MIL-STD-202 Method106 Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen. 2.4GHz 1 6 0 8 Chip Antenna: RANT1608F245C04 _ Board Flex (SMD) 1.Mountingmethod: IR-Reflow.PCBSize(L:100×W:40×T:1.6mm) 2.Applytheloadindirectionofthearrowuntilbendingreaches 2mm. NoVisibleDamage.AEC-Q200 005 AdhesionForceof1.8Kgfor60seconds.NoVisibleDamage Magnificationof20Xor greatermaybeemployed forinspectionofthe mechanicalintegrityofthe devicebodyterminalsand body/terminaljunction. AEC-Q200 006 Physical Dimension Anyapplicablemethodusingx10magnification,micrometers, calipers,gauges,contourprojectors,orothermeasuring equipment,capableofdeterminingtheactualspecimen dimensions. Inaccordancewith specification. JESD22 JB100 RevisionHistory RevisionDateContent 12019/03/01NewDatasheet 22020/02/22Add2Dradiationcharacteristic Add:Room 707, Building F, Tongan Zhichuangyuan, xixiang street, Baoan District, Shenzhen.

v Page 1 of 54 Report No.: AiTDG-260811004FW1 Appendix RF test data for BT v Page 2 of 54 Report No.: AiTDG-260811004FW1 1. Bandwidth 1.1 Test Result 1.1.1 OBW Mode TX Type Frequency (MHz) Packet Type ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 0.906 / Pass 2441 DH5 1 0.902 / Pass 2480 DH5 1 0.905 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.281 / Pass 2441 2DH5 1 1.231 / Pass 2480 2DH5 1 1.233 / Pass 8DPSK SISO 2402 3DH5 1 1.225 / Pass 2441 3DH5 1 1.234 / Pass 2480 3DH5 1 1.230 / Pass 1.1.2 20dB BW Mode TX Type Frequency (MHz) Packet Type ANT 20dB Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 0.925 / Pass 2441 DH5 1 0.958 / Pass 2480 DH5 1 0.960 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.342 / Pass 2441 2DH5 1 1.345 / Pass 2480 2DH5 1 1.349 / Pass 8DPSK SISO 2402 3DH5 1 1.331 / Pass 2441 3DH5 1 1.314 / Pass 2480 3DH5 1 1.336 / Pass v Page 3 of 54 Report No.: AiTDG-260811004FW1 1.2 Test Graph 1.2.1 OBW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV v Page 4 of 54 Report No.: AiTDG-260811004FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV v Page 5 of 54 Report No.: AiTDG-260811004FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV v Page 6 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV v Page 7 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV v Page 8 of 54 Report No.: AiTDG-260811004FW1 1.2.2 20dB BW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV v Page 9 of 54 Report No.: AiTDG-260811004FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV v Page 10 of 54 Report No.: AiTDG-260811004FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV v Page 11 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV v Page 12 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV v Page 13 of 54 Report No.: AiTDG-260811004FW1 2. Maximum Conducted Output Power 2.1 Test Result 2.1.1 Power Mode TX Type Frequency (MHz) Packet Type Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit GFSK SISO 2402 DH5 2.17 <=30 Pass 2441 DH5 3.04 <=30 Pass 2480 DH5 2.69 <=30 Pass Pi/4DQPSK SISO 2402 2DH5 0.81 <=20.97 Pass 2441 2DH5 1.41 <=20.97 Pass 2480 2DH5 0.99 <=20.97 Pass 8DPSK SISO 2402 3DH5 1.13 <=20.97 Pass 2441 3DH5 1.73 <=20.97 Pass 2480 3DH5 1.28 <=20.97 Pass Note1: Antenna Gain: Ant1: 2.70dBi; v Page 14 of 54 Report No.: AiTDG-260811004FW1 2.2 Test Graph 2.2.1 Power GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV v Page 15 of 54 Report No.: AiTDG-260811004FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV v Page 16 of 54 Report No.: AiTDG-260811004FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV v Page 17 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV v Page 18 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV v Page 19 of 54 Report No.: AiTDG-260811004FW1 3. Carrier Frequency Separation 3.1 Test Result 3.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type Channel Separation (MHz) 20dB Bandwidth (MHz) Limit (MHz) Verdict GFSK SISO HOPP DH5 1.000 0.960 >=0.96 Pass Pi/4DQPSK SISO HOPP 2DH5 0.967 1.349 >=0.899 Pass 8DPSK SISO HOPP 3DH5 1.001 1.336 >=0.891 Pass v Page 20 of 54 Report No.: AiTDG-260811004FW1 3.2 Test Graph 3.2.1 Ant1 GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV v Page 21 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HOPP_Ant1_NTNV v Page 22 of 54 Report No.: AiTDG-260811004FW1 4. Number of Hopping Frequencies 4.1 Test Result 4.1.1 HoppNum Mode TX Type Frequency (MHz) Packet Type Num of Hopping Frequencies Verdict ANT1 Limit GFSK SISO HOPP DH5 79 >=15 Pass Pi/4DQPSK SISO HOPP 2DH5 79 >=15 Pass 8DPSK SISO HOPP 3DH5 79 >=15 Pass v Page 23 of 54 Report No.: AiTDG-260811004FW1 4.2 Test Graph 4.2.1 HoppNum GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV v Page 24 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HOPP_Ant1_NTNV v Page 25 of 54 Report No.: AiTDG-260811004FW1 5. Time of Occupancy (Dwell Time) 5.1 Test Result 5.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type Duration of Single Pulse (ms) Observation Period (s) Num of Pulse in Observation Period Dwell Time (ms) Limit (ms) Verdict GFSK SISO HOPP DH1 0.400 31.600 320 128.000 <=400 Pass DH3 1.660 31.600 162 268.920 <=400 Pass DH5 2.906 31.600 117 340.002 <=400 Pass Pi/4DQPSK SISO HOPP 2DH1 0.410 31.600 320 131.200 <=400 Pass 2DH3 1.660 31.600 155 257.300 <=400 Pass 2DH5 2.910 31.600 115 334.650 <=400 Pass 8DPSK SISO HOPP 3DH1 0.392 31.600 316 123.872 <=400 Pass 3DH3 1.656 31.600 157 259.992 <=400 Pass 3DH5 2.906 31.600 111 322.566 <=400 Pass v Page 26 of 54 Report No.: AiTDG-260811004FW1 5.2 Test Graph 5.2.1 Ant1 GFSK_DH1_HOPP_Ant1_NTNV GFSK_DH1_HOPP_Ant1_NTNV v Page 27 of 54 Report No.: AiTDG-260811004FW1 GFSK_DH3_HOPP_Ant1_NTNV GFSK_DH3_HOPP_Ant1_NTNV v Page 28 of 54 Report No.: AiTDG-260811004FW1 GFSK_DH5_HOPP_Ant1_NTNV GFSK_DH5_HOPP_Ant1_NTNV v Page 29 of 54 Report No.: AiTDG-260811004FW1 Pi/4DQPSK_2DH1_HOPP_Ant1_NTNV Pi/4DQPSK_2DH1_HOPP_Ant1_NTNV v Page 30 of 54 Report No.: AiTDG-260811004FW1 Pi/4DQPSK_2DH3_HOPP_Ant1_NTNV Pi/4DQPSK_2DH3_HOPP_Ant1_NTNV v Page 31 of 54 Report No.: AiTDG-260811004FW1 Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV v Page 32 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH1_HOPP_Ant1_NTNV 8DPSK_3DH1_HOPP_Ant1_NTNV v Page 33 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH3_HOPP_Ant1_NTNV 8DPSK_3DH3_HOPP_Ant1_NTNV v Page 34 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HOPP_Ant1_NTNV 8DPSK_3DH5_HOPP_Ant1_NTNV v Page 35 of 54 Report No.: AiTDG-260811004FW1 6. Unwanted Emissions In Non-restricted Frequency Bands 6.1 Test Result 6.1.1 Ref Mode TX Type Frequency (MHz) Packet Type ANT Level of Reference (dBm) GFSK SISO 2402 DH5 1 2.22 2441 DH5 1 2.93 2480 DH…

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v Page 42 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV 8DPSK_3DH5_HOPP_Ant1_NTNV v Page 43 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HOPP_Ant1_NTNV v Page 44 of 54 Report No.: AiTDG-260811004FW1 6.2.2 CSE GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_LCH_2402MHz_Ant1_NTNV v Page 45 of 54 Report No.: AiTDG-260811004FW1 GFSK_DH5_MCH_2441MHz_Ant1_NTNV GFSK_DH5_HCH_2480MHz_Ant1_NTNV v Page 46 of 54 Report No.: AiTDG-260811004FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV GFSK_DH5_HOPP_Ant1_NTNV v Page 47 of 54 Report No.: AiTDG-260811004FW1 GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV v Page 48 of 54 Report No.: AiTDG-260811004FW1 Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV v Page 49 of 54 Report No.: AiTDG-260811004FW1 Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV v Page 50 of 54 Report No.: AiTDG-260811004FW1 Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV v Page 51 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV v Page 52 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV v Page 53 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV 8DPSK_3DH5_HOPP_Ant1_NTNV v Page 54 of 54 Report No.: AiTDG-260811004FW1 8DPSK_3DH5_HOPP_Ant1_NTNV

Page 1 of 37 Report No.: AiTDG-260811004FW1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. TEST REPORT Client Information: Applicant: SimplyTech Electronics, Inc. Applicant add.: 1407 Broadway Suite 1703, New York, United states,10018 Manufacturer: Dongguan Jiangqi Electronic Technology Co., Ltd Manufacturer add.: Building B1, West City Area, Shichong Village, Hengli Town, Dongguan City, Guangdong Province Product Information: Product Name: ChromeTouch ANC Earbuds Model No.: CHR-SMART-TOU-BLK, CHR-SMART-TOU-WHT Brand Name: Zero Statik FCC ID: 2BKTL-CHRTOUCH Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Prepared By: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang,Dongguan, Guangdong, China Tel.: +86-769-8202 0499 Fax.: +86-769-8202 0495 Date of Receipt: Jul. 01, 2026 Date of Test: Jul. 01, 2026~ Jul. 13, 2026 Date of Issue: Aug. 11, 2026 Test Result: Pass This device described above has been tested by Dongguan Yaxu (AiT) Technology Limited and 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. Note: This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited, this document may be altered or revised by Dongguan Yaxu (AiT) Technology Limited, personal only, and shall be noted in the revision of the document. This test report must not be used by the client to claim product endorsement. Reviewed by: Approved by: Emiya Lin Simba Huang Page 2 of 37 Report No.: AiTDG-260811004FW1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. 1 Contents Page COVER PAGE 1 CONTENTS .................................................................................................................................................................... 2 2 TEST SUMMARY .......................................................................................................................................................... 4 2.1 Statement of the Measurement Uncertainty ................................................................................ 4 2.2 Measurement Uncertainty ........................................................................................................... 4 3 TEST FACILITY ............................................................................................................................................................. 5 3.1 Deviation from standard .............................................................................................................. 5 3.2 Abnormalities from standard conditions ...................................................................................... 5 3.3 Test Location ............................................................................................................................... 5 4 GENERAL INFORMATION ......................................................................................................................................... 6 4.1 Test frequencies .......................................................................................................................... 7 4.2 EUT Peripheral List ..................................................................................................................... 8 4.3 Test Peripheral List ...................................................................................................................... 8 4.4 TEST METHODOLOGY .............................................................................................................. 9 4.5 Description of Test Modes ......................................................................................................... 10 5 EQUIPMENT USED DURING TEST ........................................................................................................................ 11 6 TEST RESULTS AND MEASUREMENT DATA .................................................................................................... 13 6.1 Antenna requirement ................................................................................................................. 13 6.2 Peak Power Measurement ........................................................................................................ 14 6.3 Frequency Separation and 20 dB Bandwidth ............................................................................ 15 6.4 Number of Hopping Frequency ................................................................................................. 17 6.5 Time of Occupancy (Dwell Time) .............................................................................................. 18 6.6 Conducted Spurious Emissions and Band Edges Test ............................................................. 19 6.7 Restrict-band Band-edge Measurements ................................................................................. 20 6.8 Radiated Emissions Measurement ........................................................................................... 22 6.9 Conducted Emissions ................................................................................................................ 30 6.10 Pseudorandom frequency hopping sequence .......................................................................... 36 7 TEST SETUP PHOTOGRAPHS OF EUT ................................................................................................................ 37 8 EXTERNAL PHOTOGRAPHS OF EUT ................................................................................................................... 37 9 INTERNAL PHOTOGRAPHS OF EUT .................................................................................................................... 37 P…

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Page 1 of 2 FCC ID: 2BKTL-CHRTOUCH Page 2 of 2 FCC ID: 2BKTL-CHRTOUCH