2BUNO-DC127Fast-Charging Cable

3.Product Overview3.2 Electrical Parameters4.Size Specifications Fast-Charging Cable — User Manual 3.1 Electrical Parameters ParameterSymbolValueunit 1. Product dimensions: 59.8*9.5mm; 2. Shell material: aluminum alloy; 3. Shell color: gold, red, blue, dark blue, gunmetal, black; 4. Interface type: Type-C ProjectParameter Input voltage range vcC5~9V Thank you again for purchasing this product. Input interface TypeC Please read this instruction manual before use. Power supply voltage QC、PD 5V-9V/3A MAX Operating temp erature range TA0~35°C Storage temperature range Tstg-20~70°C Wireless distance (between the transmitting coil and receiving coil) 1mm-5mm(max) 5.Packaging and Accessories 1.Product Overview Storage Humidity Range Tstr<95% RH Wireless charger: X1 CtoC data cable: X1 Manual: X1 The is a four-in-one transmitter specifically designed for magnetic wireless reception requirements. It meets the WPC 1.2.4 standard, with stable performance, low standby power consumption, and other features. It uses a unique PWM modulation mode, significantly improving conversion efficiency. It easily provides the convenience of wireless technology with high output efficiency. By comparing the built-in transmission power with the wireless receiving power, it can more accurately control energy loss during transmission. The chip integrates FSK/ASK decoding, overvoltage and overcurrent protection, and can charge all QI wireless charging-supported mobile phones, as well as Apple wireless charging headphones, Apple wireless charging watches, and Samsung wireless charging watches Power supply current Imax3 A Operating frequency Mobile Phone/ Headphones：115-205KHz； Apple Watch：300-350KHz. Human body modelESD4 KV 6.Use Cases Output Power Mobile phone：5W、7.5W、10W、 15W(MAX) Headphones：5W(MAX) Watch：2.5W（MAX） Closed magnetic field automatic adsorption Does not fall off Can charge with the case on Coil TypeA11 Conversion efficiency 85% (depending on reception coupling match) 7.Precautions 2.Product Features. · Supports 5 - 9V voltage input; · Supports mobile phone power output of 5W, 7.5W, 10W, 15W (MAX); · The headphones have a power output of 5W (MAX); the watch has a power output of 2.5W (MAX). · Input supports multiple fast charging protocols such as PD2.0 and BC1.2; · Supports half-bridge and full-bridge output modes; · Built-in hardware protection for overvoltage, undervoltage, and overtemperature. · Internal integrated current-sensing differential amplifier with hardware overcurrent protection; · Built-in ASK demodulation module; · Supports static and dynamic FOD detection; · Typical static power consumption < 60mA. Storage Humidity Range <95%RH · Do not use this product in a humid environment, as contact with water may cause malfunction or damage. · Do not hit or drop this product, as repeated impacts may cause internal damage. · Do not disassemble, modify, or repair this product by yourself. · Do not connect this product to a voltage higher than specified. · Do not throw this product into fire to avoid the risk of explosion. · Do not use this product with wet or damp hands. · Store the product in a cool, dry place, out of reach of children. Safety protection function Overcurrent protection, undervoltage protection Overvoltage protection, overtemperature protection Compatibility Compatible with QI wireless receiver products DC127 DC127 FCC Warning Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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 frequency 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 equipment 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 outlet on a circuit different from that to which the receiver is connected. ‐‐ Consult the dealer or an experienced radio/TV technician for help. FCC Radiation Exposure Statement The antennas used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co‐located for operating in conjunction with any other antenna or transmitter. 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.

(Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si) (2026/3/10) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2BUNO-DC127) [Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si] (“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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, (Applicant signature) (Applicant printed name) feng xiao (Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si) (2026/3/10) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2BUNO-DC127) [Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si] (“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. Sincerely, (Applicant signature) (Applicant printed name) feng xiao

Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si 2026/3/10 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen STS Test Services 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, Client’s signature: Client’s name / title : feng xiao / Certification Engineer Contact information / address: 2nd Floor, Building 7#, Taihua Wutong Island Industrial Park, Sanwei Community, Hangcheng Street, Baoan District, Shenzhen, China

Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si 2026/3/10 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Fast-Charging Cable Trademark: charmast MODEL: DC127 FCC ID: 2BUNO-DC127 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 - Schematics - Operational Description 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, Client’s signature: Client’s name / title : feng xiao / Certification Engineer Contact information / address: 2nd Floor, Building 7#, Taihua Wutong Island Industrial Park, Sanwei Community, Hangcheng Street, Baoan District, Shenzhen, China

Page 1 of 7 FCC ID：2BUNO-DC127 External Photos Page 2 of 7 FCC ID：2BUNO-DC127 Page 3 of 7 FCC ID：2BUNO-DC127 Page 4 of 7 FCC ID：2BUNO-DC127 Page 5 of 7 FCC ID：2BUNO-DC127

FCC ID: 2BUNO-DC127

Page 6 of 7 FCC ID：2BUNO-DC127 Internal Photos Phone Antenna Watch Antenna Page 7 of 7 FCC ID：2BUNO-DC127

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. MPE Test Report Report No.: STS2601350H01 Issued for Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si 2nd Floor, Building 7#, Taihua Wutong Island Industrial Park, Sanwei Community, Hangcheng Street, Baoan District, Shenzhen, China Product Name: Fast-Charging Cable Brand Name: charmast Model Name: DC127 Series Model(s): N/A FCC ID: 2BUNO-DC127 Test Standard: FCC CFR 47 part 1, 1.1310 Page 2 of 18 Report No.: STS2601350H01 Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) TEST RESULT CERTIFICATION Applicant’s Name ................... : Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si Address ................................. : 2nd Floor, Building 7#, Taihua Wutong Island Industrial Park, Sanwei Community, Hangcheng Street, Baoan District, Shenzhen, China Manufacturer's Name ............. : Dongguan QiHong Electronics Technology Co., Ltd. Address ................................. : No.8, Hi-Tech IndustrialZone 2nd Rd,Tangxia, Dongguan, China. Product Description Product Name ........................ : Fast-Charging Cable Brand Name ........................... : charmast Model Name ........................ : DC127 Series Model(s) ...................... : N/A Standards .............................. : FCC CFR 47 part 1, 1.1310 Test Procedure ..................... : KDB 680106 D01 Wireless Power Transfer v04 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 ..... : 09 Jan. 2026 Date of performance of tests .. : 09 Jan. 2026 to 05 Feb. 2026 Date of Issue .......................... : 05 Feb. 2026 Test Result ............................. : Pass Page 3 of 18 Report No.: STS2601350H01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 5 1.1 TEST FACTORY 5 1.2 MEASUREMENT UNCERTAINTY 5 1.3 GENERAL DESCRIPTION OF THE EUT 6 1.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 8 1.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 8 2. COIL SPECIFICATIONS 9 2.1 COIL SIZE 9 2.2 LOCATION(S) – COIL TO THE OUTER SURFACE OF THE ENCLOSURE(S) 10 3. MAXIMUM PERMISSIBLE EXPOSURE 11 3.1MEASURING STANDARD 11 3.2 REQUIREMENTS 11 3.3TEST PROCEDURE 13 3.4 TEST SETUP 13 3.5 TEST RESULTS 14 3.6 MAXIMUM PERMISSIBLE EXPOSURE 16 Page 4 of 18 Report No.: STS2601350H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 05 Feb. 2026 STS2601350H01 ALL Initial Issue Page 5 of 18 Report No.: STS2601350H01 1. SUMMARY OF TEST RESULTS 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 Uncertainly 1 H-filed ±0.83dB 2 E-filed ±0.91dB Page 6 of 18 Report No.: STS2601350H01 1.3 GENERAL DESCRIPTION OF THE EUT Product Name Fast-Charging Cable Brand charmast Model Number DC127 Series Model(s) N/A Model Difference N/A Equipemnt Category Non-ISM frequency Antenna Type loop coil antenna Operating frequency 115-205kHz; 300-350kHz Modulation Type ASK Power Rating Input: DC 5V/3A, DC 9V/3A Wireless Output: iWatch 2.5W, Mobile 5W/7.5W/10W/15W Adapter N/A Battery N/A Wireless charging power 15W Max Hardware version number N/A Software version number N/A Connecting I/O Port(s) Please refer to the Note 1. Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User Manual. 2. Table for Filed Antenna Ant. Brand Model Name Antenna Type Connector NOTE 1 N/A N/A Coil N/A Antenna The EUT antenna is Coil Antenna. No antenna other than that furnished by the responsible party shall be used with the device. Page 7 of 18 Report No.: STS2601350H01 1.4 DESCRIPTION OF THE TEST MODES Equipment under test was operated during the measurement under the following conditions: Test Mode Description Mode 1 AC Adapter + EUT + Load(15W, 115-205kHz) (Battery Status: < 1%) Record Mode 2 AC Adapter + EUT + Load(15W, 115-205kHz) (Battery Status: < 50%) Record Mode 3 AC Adapter + EUT + Load(15W, 115-205kHz) (Battery Status: < 99%) Record Mode 4 AC Adapter + EUT + Load(2.5W, 300-350kHz) (Battery Status: < 1%) Record Mode 5 AC Adapter + EUT + Load(2.5W, 300-350kHz) (Battery Status: < 50%) Record Mode 6 AC Adapter + EUT + Load(2.5W, 300-350kHz) (Battery Status: < 99%) Record Mode 7 Test the EUT in idle mode. Pre-tested Note: All test modes were pre-tested, but we only recorded the worst case in this report. Page 8 of 18 Report No.: STS2601350H01 1.5 EQUIPMENTS LIST FOR ALL TEST ITEMS Kind of Equipment Manufacturer Type No. Serial No. Last calibration Calibrated until Electric and Magnetic field Probe - Analyzer Narda EHP-200A 180ZX10220 2025.02.22 2026.02.21 1.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS Item Equipment Mfr/Brand Model/Type No. Note E-1 Adapter ZTC NB-A515A N/A E-2 Load N/A N/A N/A C-1 DC cable N/A N/A N/A Item Shielded Type Ferrite Core Length Note C-1 N/A N/A 0.8m N/A Note: (1) For detachable type I/O cable should be specified the length in cm in『Length』column. (2) “YES” is means “with core”; “NO” is means…

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1 DongguanXinwangCoilTechnologyCo., Ltd. SPECIFICATIONAPPROVALSHEET CUSTOMER.ShenzhenXinpinInnovationElectronicTechnologyCo.,Ltd. MODELNO. DESCRIPTIONWirespecification:0.08mm×45strandshotairtwistedwire Magneticsheet:43mm×19mm×0.8mmwithwhiteadhesivebacking Windingrequirement:Twowiresperslot;innerdiameter21.8mm(fixedwithtransparent adhesivetape);wirelength10mm Inductance:6.5μH PARTNO.ARW-Q-XQ-076 DATE CUSTOMER □PASS □NG Q.A.DEPT. ENGINEER DEPT. STOCK DEPT. DongguanXinwangCoilTechnologyCo.,Ltd. (Confirmation) SampleQuantity： Numberof Acknowledgement Copies： Q.A.DEPT. ENGINEER DEPT. APPROVAL YangYouliWangXinHuangYanping 2 Dongguan Xinwang Coil Technology Co., Ltd. 2.Attached Drawings ： 1.DIMENSIONS：mm A 19 ± 1 B 21.8±1 C 39 ± 1 D 43±1 E 3±1.5 F 10 ± 2 GMagnetic tape thickness 0.75±0.15 Magnetic sheet with adhesive back thickness 0.8± 0.15 H Total thickness 1.7 ± 0.5 J k L M N O R Q P A B C D E F G H 3 2.WINDINGDETAILS： 5.ELECTRICALCHARACTERISTICS： PARAMETERSUNINLIMTI Inductancels@100KHz/1vUH 6.5UH ± 10％ Q@100KHz/1v30MIN DCR@100KHz/1v m Ω 120MAX Wdy.NO . Start Finis h Turns WireDia Wdg.TyepeSprad/loseWdg.Directi on Turns/Layer SF10TS0.08*45PMeditationCountercl ockwise 1Floor/10TS 4 DongguanXinwangCoilTechnologyCo.,Ltd. MaterialName： MATERIAL LIST CUSTOMERP/N:Wirelesscharging transmitter PARTNUMBER： NO.MaterialnameDescriptionManufacturerMaterial 1Hotairlinehot airline 0.08*45p99.95%Redcopper 2Lead-freesolder wire Hightemperature 3High-temperatur etape (transparenttape) 4GlueYellowglue 5Magneticdisk43.2*19*0.8MMFerrite.Manganese zincPC40 6double-sidedtapeHand-tearadhesive backing 7EPEfoam270*380*55 8Cardboardbox280*390*190 5 DongguanXinwangCoilTechnologyCo.,Ltd. 3.SampleTestResults ： Themaindimensionsmustbemeasured SizeSequen ce Name Requireme nt Test Results Test results Toleranc e± unit Size1 Coilouter diameter 39 ±1MM Size1 Coilouter diameter 39 ±1MM Size1 Coilouter diameter 39 ±1MM Size1 Coilouter diameter 39 ±1MM Size2 Coilinner diameter 21.8 ±1MM Size2 Coilinner diameter 21.8 ±1MM Size2 Coilinner diameter 21.8 ±1MM Size2 Coilinner diameter 21.8 ±1MM Size3 Overall thickness 1.7 ±0.5MM Size3 Overall thickness 1.7 ±0.5MM Size3 Overall thickness 1.7 ±0.5MM Size3 Overall thickness 1.7 ±0.5MM

acknowledgment Customer name： Shenzhen Xinpin Innovation Electronic Technology Co., Ltd. Customer data： ARW-Q-XQ-075 Our model number： RC-G25-2.5-7.6UH-4100GS-8MM Sample delivery date： January 15, 2026 Supply side： Dongguan Jerice Technology Co. , Ltd. Draw up Audit Permission granted Wang Liying Deng xianggui Lu Rusheng Client acknowledges： Qualified Disqualified Admit it Notes Dongguan Jerice Technology Co. , Ltd. Tel: Fax: 86+13632701380 Address： 96 Long Wu Road, Tai Ling Shan, Dongguan (3F, building L, Kam Hung Tat Science and Technology Park) Customer name Customer data Our model number Version Date Xinpin Innovation ARW-Q-XQ-075 RC-G25-2.5-7.6UH-4100GS- 8MM A0 January 15, 2026 一、 Floor plan: unit: MM 二、 Product parameters: Feet Line diameter Number of turns Notes 1-2 0.08*24P 13T Hot Air Strand 審核 A E I H G F M D J A B C D F G H 2.0±1 15.0±0.2 20.5±0.5 21.1±0.2 23.0±0.2 24.6±0.2 2.6±0.15 2.4±0.1中柱高度 I 1 2 1 2 6±0.1 J B C 10±0.1 14.5±0.1 E K K 磁铁 L L M 3±0.1 8±1 三、 Technical Requirements: 1. Fix the head and tail of the copper wire to prevent loose or broken copper wire. 2．According to customer requirements to cut the head of the excess copper wire, tinned, tinned depth of 1 ~ 3mm. 3．Stick some white glue on the soft magnetic sheet and stick on the copper coil to ensure the clean and tidy surface of the product in the process. 4. Soft magnetic flaky objects have round holes and are not damaged. 5. Additional process (according to customer requirements) : A double-sided adhesive ring with a diameter of 20x12mm is attached to the back of the product, along with a magnet; this component is included in the packaging. 四、 Electrical parameter： 1. Inductance value, PIN 1— 2 = 7.6±0.3uH Q 25 The above inductances and Q values are based on Quanhua 1062A instrument and 100KHZ/1.0Vrms as standard or equivalent instrument. VV 五、 Bill of materials： NO Name Material Quality Suppliers Notes 1 Hot Air Strand 0.08*24P Uyghur or equivalent 2 Disk G25 Soft substrate TX or equivalent Central hole: 10 mm 3 Tin High temperature environmental protection Thond Island or equivalent 4 White glue BY882 Treasure month or equivalent 5 Strong magnetism 6*3*4100100GS Hung Fai or equivalent Magnetic magnet assembly 6 Double-sided glue 20*12MM Double-sided ring Hung Fai or equivalent Wordless ring 审核

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. MPE Test Report Report No.: STS2601350H01 Issued for Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si 2nd Floor, Building 7#, Taihua Wutong Island Industrial Park, Sanwei Community, Hangcheng Street, Baoan District, Shenzhen, China Product Name: Fast-Charging Cable Brand Name: charmast Model Name: DC127 Series Model(s): N/A FCC ID: 2BUNO-DC127 Test Standard: FCC CFR 47 part 1, 1.1310 Page 2 of 18 Report No.: STS2601350H01 Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) TEST RESULT CERTIFICATION Applicant’s Name ................... : Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si Address ................................. : 2nd Floor, Building 7#, Taihua Wutong Island Industrial Park, Sanwei Community, Hangcheng Street, Baoan District, Shenzhen, China Manufacturer's Name ............. : Dongguan QiHong Electronics Technology Co., Ltd. Address ................................. : No.8, Hi-Tech IndustrialZone 2nd Rd,Tangxia, Dongguan, China. Product Description Product Name ........................ : Fast-Charging Cable Brand Name ........................... : charmast Model Name ........................ : DC127 Series Model(s) ...................... : N/A Standards .............................. : FCC CFR 47 part 1, 1.1310 Test Procedure ..................... : KDB 680106 D01 Wireless Power Transfer v04 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 ..... : 09 Jan. 2026 Date of performance of tests .. : 09 Jan. 2026 to 05 Feb. 2026 Date of Issue .......................... : 05 Feb. 2026 Test Result ............................. : Pass Page 3 of 18 Report No.: STS2601350H01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 5 1.1 TEST FACTORY 5 1.2 MEASUREMENT UNCERTAINTY 5 1.3 GENERAL DESCRIPTION OF THE EUT 6 1.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 8 1.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 8 2. COIL SPECIFICATIONS 9 2.1 COIL SIZE 9 2.2 LOCATION(S) – COIL TO THE OUTER SURFACE OF THE ENCLOSURE(S) 10 3. MAXIMUM PERMISSIBLE EXPOSURE 11 3.1MEASURING STANDARD 11 3.2 REQUIREMENTS 11 3.3TEST PROCEDURE 13 3.4 TEST SETUP 13 3.5 TEST RESULTS 14 3.6 MAXIMUM PERMISSIBLE EXPOSURE 16 Page 4 of 18 Report No.: STS2601350H01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 05 Feb. 2026 STS2601350H01 ALL Initial Issue Page 5 of 18 Report No.: STS2601350H01 1. SUMMARY OF TEST RESULTS 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 Uncertainly 1 H-filed ±0.83dB 2 E-filed ±0.91dB Page 6 of 18 Report No.: STS2601350H01 1.3 GENERAL DESCRIPTION OF THE EUT Product Name Fast-Charging Cable Brand charmast Model Number DC127 Series Model(s) N/A Model Difference N/A Equipemnt Category Non-ISM frequency Antenna Type loop coil antenna Operating frequency 115-205kHz; 300-350kHz Modulation Type ASK Power Rating Input: DC 5V/3A, DC 9V/3A Wireless Output: iWatch 2.5W, Mobile 5W/7.5W/10W/15W Adapter N/A Battery N/A Wireless charging power 15W Max Hardware version number N/A Software version number N/A Connecting I/O Port(s) Please refer to the Note 1. Note: 1. For a more detailed features description, please refer to the manufacturer’s specifications or the User Manual. 2. Table for Filed Antenna Ant. Brand Model Name Antenna Type Connector NOTE 1 N/A N/A Coil N/A Antenna The EUT antenna is Coil Antenna. No antenna other than that furnished by the responsible party shall be used with the device. Page 7 of 18 Report No.: STS2601350H01 1.4 DESCRIPTION OF THE TEST MODES Equipment under test was operated during the measurement under the following conditions: Test Mode Description Mode 1 AC Adapter + EUT + Load(15W, 115-205kHz) (Battery Status: < 1%) Record Mode 2 AC Adapter + EUT + Load(15W, 115-205kHz) (Battery Status: < 50%) Record Mode 3 AC Adapter + EUT + Load(15W, 115-205kHz) (Battery Status: < 99%) Record Mode 4 AC Adapter + EUT + Load(2.5W, 300-350kHz) (Battery Status: < 1%) Record Mode 5 AC Adapter + EUT + Load(2.5W, 300-350kHz) (Battery Status: < 50%) Record Mode 6 AC Adapter + EUT + Load(2.5W, 300-350kHz) (Battery Status: < 99%) Record Mode 7 Test the EUT in idle mode. Pre-tested Note: All test modes were pre-tested, but we only recorded the worst case in this report. Page 8 of 18 Report No.: STS2601350H01 1.5 EQUIPMENTS LIST FOR ALL TEST ITEMS Kind of Equipment Manufacturer Type No. Serial No. Last calibration Calibrated until Electric and Magnetic field Probe - Analyzer Narda EHP-200A 180ZX10220 2025.02.22 2026.02.21 1.6 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS Item Equipment Mfr/Brand Model/Type No. Note E-1 Adapter ZTC NB-A515A N/A E-2 Load N/A N/A N/A C-1 DC cable N/A N/A N/A Item Shielded Type Ferrite Core Length Note C-1 N/A N/A 0.8m N/A Note: (1) For detachable type I/O cable should be specified the length in cm in『Length』column. (2) “YES” is means “with core”; “NO” is means…

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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.: STS2601350W01 Issued for Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si 2nd Floor, Building 7#, Taihua Wutong Island Industrial Park, Sanwei Community, Hangcheng Street, Baoan District, Shenzhen, China Product Name: Fast-Charging Cable Brand Name: charmast Model Name: DC127 Series Model(s): N/A FCC ID: 2BUNO-DC127 Test Standards: FCC Part 15 Subpart C Page 2 of 28 Report No.: STS2601350W01 Testing Engineer : (Aaron Bu) Technical Manager : (Skylar Li) Authorized Signatory : (Bovey Yang) TEST REPORT Applicant’s Name ................... : Shen Zhen Shi Chen Ying Ke Ji You Xian Gong Si Address ................................. : 2nd Floor, Building 7#, Taihua Wutong Island Industrial Park, Sanwei Community, Hangcheng Street, Baoan District, Shenzhen, China Manufacturer's Name ............. : Dongguan QiHong Electronics Technology Co., Ltd. Address ................................. : No.8, Hi-Tech IndustrialZone 2nd Rd,Tangxia, Dongguan, China. Product Description Product Name ........................ : Fast-Charging Cable Brand ..................................... : charmast Model Number ....................... : DC127 Series Model(s)...................... : N/A Test Standards ..................... : FCC Part 15 Subpart C 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 ..........: 09 Jan. 2026 Date (s) of performance of tests .: 09 Jan. 2026 to 05 Feb. 2026 Date of Issue ............................. : 05 Feb. 2026 Test Result ..................................: Pass Page 3 of 28 Report No.: STS2601350W01 Table of Contents Page 1. SUMMARY OF TEST RESULTS 5 1.1 TEST FACTORY 5 1.2 MEASUREMENT UNCERTAINTY 5 2. GENERAL INFORMATION 6 2.1 GENERAL DESCRIPTION OF THE EUT 6 2.2 DESCRIPTION OF THE TEST MODES 7 2.3 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 8 2.4 DESCRIPTION OF NECESSARY ACCESSORIES AND SUPPORT UNITS 9 2.5 EQUIPMENTS LIST FOR ALL TEST ITEMS 10 3. CONDUCTED EMISSION TEST RESULT (SECTION 15.207) 11 3.1 POWER LINE CONDUCTED EMISSION LIMITS 11 3.2 TEST PROCEDURE 12 3.3 TEST SETUP 12 3.4 EUT OPERATING CONDITIONS 12 3.5 TEST RESULTS 13 4. RADIATED& FIELD EMISSION TEST RESULT (SECTIOU 15.209) 17 4.1 LIMIT 17 4.2 TEST PROCEDURE 17 4.3 TEST SETUP 18 4.4 TEST RESULTS 19 4.4.1 SPURIOUS RADIATED EMISSION BELOW 30 MHZ 19 5. 20 DB BANDWIDTH TEST 25 5.1 LIMIT 25 5.2 TEST SETUP 25 5.3 TEST RESULTS 26 6. ANTENNA REQUIREMENTS 27 6.1 LIMIT 27 6.2 TEST RESULTS 27 APPENDIX-PHOTOS OF TEST SETUP 28 Page 4 of 28 Report No.: STS2601350W01 Revision History Rev. Issue Date Report No. Effect Page Contents 00 05 Feb. 2026 STS2601350W01 ALL Initial Issue Page 5 of 28 Report No.: STS2601350W01 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.209(a) Radiated emission, Spurious Emission PASS 2.1049 20 dB Bandwidth PASS 15.203 Antenna Requirement PASS 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 All emissions, radiated>6G ±5.24dB 7 Conducted Emission (9KHz-150KHz) ±2.19dB 8 Conducted Emission (150KHz-30MHz) ±2.53dB 9 Occupied Channel Bandwidth ±3.…

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