2A9P3-KB1101Bluetooth keyboard case

FULLINK TECHNOLOGY Co., LTD Agent Authorization Letter 2023-01-05 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen Most Technology Service 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, Name: xing quan chen Position: Manager Company Name: FULLINK TECHNOLOGY Co., LTD Address: Building 101,Building 7, JiaDa Industrial Park,West of Honghu East Road,Yanchuan Community,Yanluo Street, Baoan District, Shenzhen City,China Tel / Fax 0755-29696695 / 0755-29696621 E-Mail: [email protected]

FULLINK TECHNOLOGY Co., LTD Long Term Confidentiality Request Letter 2022.01.05 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR (FCC ID: 2A9P3-KB1101) 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 - e.g. Block diagram - e.g. SCH - e.g. Operational Description required to be submitted with this application be permanently withheld from public review. The above documents are company proprietary information that could never get into the possession of your competition. Please contact me if there is any information you may need. Sincerely, Name: xing quan chen Position: Manager Company Name: FULLINK TECHNOLOGY Co., LTD Address: Building 101,Building 7, JiaDa Industrial Park,West of Honghu East Road,Yanchuan Community,Yanluo Street, Baoan District, Shenzhen City,China Tel / Fax 0755-29696695 / 0755-29696621 E-Mail: [email protected]

Model No.: KB1101 FRONT VIEW OF SAMPLE BACK VIEW OF SAMPLE Model No.: KB1101 LEFT VIEW OF SAMPLE RIGHT VIEW OF SAMPLE Model No.: KB1101 TOP VIEW OF SAMPLE BOTTOM VIEW OF SAMPLE Model No.: KB1101 OVERALL OF SAMPLE

Label Location FCC ID: 2A9P3-KB1101 Model: KB1101 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.

Model No.: KB1101 Page 1 of 3 INTERNAL PHOTO OF SAMPLE PCB INTERNAL PHOTO OF SAMPLE PCB Antenna Location Model No.: KB1101 Page 2 of 3 INTERNAL PHOTO OF SAMPLE PCB INTERNAL PHOTO OF SAMPLE PCB Model No.: KB1101 Page 3 of 3 INTERNAL PHOTO OF SAMPLE PCB Battery

Shenzhen Most Technology Service Co., Ltd. No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. RF Exposure Evaluation Report Report Reference No. ..................... : FCC ID.. .......................................... : MTEB22120162-H 2A9P3-KB1101 Compiled by ( position+printed name+signature) .. : File administrators Alisa Luo Supervised by ( position+printed name+signature) .. : Test Engineer Sunny Deng Approved by ( position+printed name+signature) .. : Manager Yvette Zhou Date of issue ..................................... : December 15,2022 Representative Laboratory Name .: Shenzhen Most Technology Service Co., Ltd. Address ............................................ : No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. Applicant’s name ............................ : FULLINK TECHNOLOGY Co., LTD Address ............................................ : Building 101,Building 7, JiaDa Industrial Park,West of Honghu East Road,Yanchuan Community,Yanluo Street, Baoan District, Shenzhen City Test specification/ Standard ..........: 47 CFR Part 1.1307 47 CFR Part 2.1093 TRF Originator .................................. : Shenzhen Most Technology Service Co., Ltd. Shenzhen Most Technology Service Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Most Technology Service Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Most Technology Service Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : Bluetooth keyboard case Trade Mark ....................................... : N/A Manufacturer .................................... : FULLINK TECHNOLOGY Co., LTD Model/Type reference....................... : KB1101 Listed Models .................................. : N/A Modulation Type ............................... : GFSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version .............................. V1.1 Software Version ............................... V1.0 Rating ............................................... : DC 5V by USB Port DC 3.7V by Battery Result................................................ : PASS Report No.: MTEB22120162-H Page 2 of 5 T E S T R E P O R T Equipment under Test : Bluetooth keyboard case Model /Type : KB1101 Listed Models : N/A Remark N/A Applicant : FULLINK TECHNOLOGY Co., LTD Address : Building 101,Building 7, JiaDa Industrial Park,West of Honghu East Road,Yanchuan Community,Yanluo Street, Baoan District, Shenzhen City Manufacturer : FULLINK TECHNOLOGY Co., LTD Address : Building 101,Building 7, JiaDa Industrial Park,West of Honghu East Road,Yanchuan Community,Yanluo Street, Baoan District, Shenzhen City Test Result: PASS The 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. Report No.: MTEB22120162-H Page 3 of 5 1. Revision History Revision Issue Date Revisions Revised By 00 2022-12-15 Initial Issue Alisa Luo Report No.: MTEB22120162-H Page 4 of 5 2. SAR Evaluation 2.1 RF Exposure Compliance Requirement 2.1.1 Standard Requirement According to KDB447498D01 General RF Exposure Guidance v06 4.3.1. Standalone SAR test exclusion considerations Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Exclusion Threshold condition, listed below, is satisfied. 2.1.2 Limits The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion Report No.: MTEB22120162-H Page 5 of 5 2.1.3 EUT RF Exposure Measurement Data BLE GFSK Test channel Peak Output Power (dBm) Tune up tolerance (dBm) Maximum tune-up Power (dBm) Lowest(2402MHz) -1.302 -1.302±1 -0.302 Middle(2440MHz) -1.212 -1.212±1 -0.212 Highest(2480MHz) -1.613 -1.613±1 -0.613 Worst case: GFSK Channel Maximum Peak Conducted Output Power (dBm) Maximum tune-up Power Calculated value Exclusion threshold SAR Test Exclusion (dBm) (mW) Middle(2440MHz) -1.212 -0.212 0.95 0.30 3.0 Yes .......................THE END OF REPORT.........................

Page 3 of 10 ANTENNADESIGN Manufacturer: FULLINK TECHNOLOGY Co., LTD Simulation IE3D from Zeland, which is an electromagnetic simulation tool, was used to design the antenna. The accuracy of the simulation is controlled by the mesh. An increase of the mesh increases the simulation time. Thus, for initial simulations mesh = 1 should be used. When a fairly good result is achieved a higher mesh should be used to obtain more accurate results. Comparison of simulation and measurement results shows that the measured reflection is between the result obtained with mesh = 5 and mesh = 1; see Figure 2 for details. Figure 2: Comparison of Simulation and Measurements Results Page 4 of 10 Layout andImplementation Figure 3: Antenna Dimensions L1 3.94 mm L2 2.70 mm L3 5.00 mm L4 2.64 mm L5 2.00 mm L6 4.90 mm W1 0.90 mm W2 0.50 mm D1 0.50 mm D2 0.30 mm D3 0.30 mm D4 0.50 mm D5 1.40mm D6 1.70 mm Table 1: Antenna Dimensions Page 5 of 10 TESTRESULTS Reflection, radiation pattern and variation of output power across a wide frequency band were measured to verify the performance of the PCB antenna. Measurements of the dongle in free space and when connected to a laptop were performed to verify that the antenna is suitable both for USB dongle designs and in a standalone application. Free space is in this document interpreted as a measurement performed without connecting the dongle to a computer. In such a measurement the dongle is only powered by a battery. Reflection All the reflection measurements were performed with a network analyzer connected to a semi-rigid coax cable, which was soldered to the feed point of the antenna. Because of the small size antenna and the small ground plane this kind of measurements is heavily affected by the presence and placement of the coax cable. This influence can result in a small uncertainty in resonance frequency and measured reflection. Typically different placement of the semi-rigid coax cable could change the resonance frequency with 5 -10 MHz and the reflection with 3 - 4 dB. Figure 4: Influence of Plastic Encapsulation and Test Pins Page 6 of 10 A small part on the CC2511 USB dongle PCB is equipped with test pins. These are intended for use during development. This part of the PCB will typically be omitted in a final application. The red and green graph on Figure 4 shows that removing this part of the PCB has a small impact on the performance. Figure 4 also shows that plastic encapsulation of the dongle will shift the resonance frequency to a lower frequency. This can be compensated by making the antenna slightly shorter. The size of the ground plane affects the performance of the PCB antenna. Connecting the USB dongle to a computer increases the size of the ground plane and thus the performance is affected. Figure 5 shows how the performance is affected when the USB dongle is connected to a laptop. In free space the antenna has a bandwidth of approximately 250 MHz. When the USB dongle is connected to the laptop the bandwidth is reduced to around 100 MHz, which still is enough to cover the whole 2.4 GHz ISMband. Figure 5: Comparison of Performance Page 7 of 10 RadiationPattern The radiation pattern for the antenna implemented on the CC2511 USB dongle reference design has been measured in an anechoic chamber. Figure 7 through Figure 12 shows radiation patterns for three planes, XY, XZ and YZ, measured with vertical and horizontal polarization. All these measurement were performed without connecting the dongle to a computer. Figure 13 and Figure 14 shows the radiation pattern when the dongle is connected to a laptop. All measurements were performed with 0 dBm output power. Figure 6 shows how the different radiation patters are related to the positioning of the antenna. XYplane YZplane XZ plane Figure 6: How to Relate the Antenna to the Radiation Patterns Page 8 of 10 USB Dongle XY Plane USB Dongle XY Plane USB Dongle XZ Plane Page 9 of 10 USB Dongle YZ Plane USB Dongle YZ Plane USB Dongle YZ Plane Page 10 of 10 USB Dongle XY Plane USB Dongle XY Plane Unit in dBi @2.48GHz XY-plane XZ-plane YZ-plane Peak Avg. Peak Avg. Peak Avg. Module Board 0.25 -1.25 0.33 -0.99 0.76 -0.24

Shenzhen Most Technology Service Co., Ltd. No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. TEST REPORT FCC Rules Part 15.247 Report Reference No. ..................... : FCC ID.. .......................................... : MTEB22120162-R1 2A9P3-KB1101 Compiled by ( position+printed name+signature) .. : File administrators Alisa Luo Supervised by ( position+printed name+signature) .. : Test Engineer Sunny Deng Approved by ( position+printed name+signature) .. : Manager Yvette Zhou Date of issue ..................................... : December 15,2022 Representative Laboratory Name .: Shenzhen Most Technology Service Co., Ltd. Address ............................................ : No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. Applicant’s name ............................ : FULLINK TECHNOLOGY Co., LTD Address ............................................ : Building 101,Building 7, JiaDa Industrial Park,West of Honghu East Road,Yanchuan Community,Yanluo Street, Baoan District, Shenzhen City Test specification/ Standard ..........: FCC Rules Part 15.247 TRF Originator .................................. : Shenzhen Most Technology Service Co., Ltd. Shenzhen Most Technology Service Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Most Technology Service Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Most Technology Service Co., Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : Bluetooth keyboard case Trade Mark ...........................: N/A Manufacturer .................................... : FULLINK TECHNOLOGY Co., LTD Model/Type reference....................... : KB1101 Listed Models .................................. : N/A Modulation Type ............................... : GFSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version .............................. V1.1 Software Version ............................... V1.0 Rating ............................................... : DC 5V by USB Port DC 3.7V by Battery Result................................................ : PASS Report No.: MTEB22120162-R1 Page 2 of 34 T E S T R E P O R T Equipment under Test : Bluetooth keyboard case Model /Type : KB1101 Listed Models : N/A Remark N/A Applicant : FULLINK TECHNOLOGY Co., LTD Address : Building 101,Building 7, JiaDa Industrial Park,West of Honghu East Road,Yanchuan Community,Yanluo Street, Baoan District, Shenzhen City Manufacturer : FULLINK TECHNOLOGY Co., LTD Address : Building 101,Building 7, JiaDa Industrial Park,West of Honghu East Road,Yanchuan Community,Yanluo Street, Baoan District, Shenzhen City Test Result: PASS The 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. Report No.: MTEB22120162-R1 Page 3 of 34 Contents 1. REVISION HISTORY ................................................................ 4 2. TEST STANDARDS .................................................................. 5 3. SUMMARY ............................................................................. 6 3.1. General Remarks 6 3.2. Product Description 6 3.3. Equipment Under Test 6 3.4. Short description of the Equipment under Test (EUT) 6 3.5. EUT operation mode 7 3.6. Block Diagram of Test Setup 7 3.7. Test Item (Equipment Under Test) Description* 7 3.8. Auxiliary Equipment (AE) Description 7 3.9 Antenna Information* 8 3.10. EUT configuration 8 3.11. Modifications 8 4. TEST ENVIRONMENT ............................................................... 9 4.1. Address of the test laboratory 9 4.2. Environmental conditions 9 4.3. Test Description 10 4.4. Statement of the measurement uncertainty 10 4.5. Equipments Used during the Test 11 5. TEST CONDITIONS AND RESULTS ............................................ 12 5.1. AC Power Conducted Emission ................................................................................... 12 5.2. Radiated Emission ........................................................................................................ 15 5.3. Maximum Peak Output Power ...................................................................................... 22 5.4. Power Spectral Density ................................................................................................ 23 5.5. 6dB Bandwidth and 99% Bandwidth ............................................................................ 25 5.6. Band Edge Compliance of RF Emission ...................................................................... 27 5.7. Spurious RF Conducted Emission ............................................................................... 29 5.8. Antenna Requirement ................................................................................................... 32 6. TEST SETUP PHOTOS OF THE EUT .......................................... 33 7. EXTERNAL AND INTERNAL PHOTOS OF THE EUT ....................... 34 Report No.: MTEB22120162-R1 Page 4 of 34 1. Revision History Revision Issue Date Revisions Revised By 00 2022-12-15 Initial Issue Alisa Luo Report No.: MTEB22120162-R1 Page 5 of 34 2. TEST STANDARDS The tests were performed according to following standards: The tests were performed according to following standards: FCC Rules Part 15.247: Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz. ANSI C63.10:2013 : American National Standard for Testing Unlicensed Wireless Devices Report No.: MTEB22120162-R1 Page 6 of 34 3. SUMMARY 3.1. General Remarks Date of receipt of …

Text truncated - open the document above for the full version.

Model No.: KB1101 RE TEST SETUP Model No.: KB1101 CE TEST SETUP