2APR7-F109Bluetooth keyboard

FCC Caution： This device complies with part 15 of the FCC Rules. Operation is subject to the fo llowing 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. A ny 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 protec tion 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 instruct ions, 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 rad io or television reception, which can be det ermined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the fo llowing 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Dong Guan BlueFinger Electronics Co.,LTD 2021.03.05 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Bluetooth keyboard Trademark: N/A MODEL : F109, F1, F2, F3S, F8S, F8mini, F13, F17, F18, F19, F19A, F02, F04, F06, F07, F66, F88, F99, F180, F360, F79, F97, F102, F105, F108, F11, F129, P79, P97, P102, P105, P108, P109, P11, P129, W79, W97, W102, W105, W108, W109, W11, W129, K79, K97, K102, K105, K108, K109, K11, K129, KD-K1, KD-K2, KD-K3, KD-K4, KD-K5, KD-K6, KD-K7, KD-K8, KD-K9, KD-K10, doqo1, doqo2, doqo3, doqo4, doqo5, doqo6, doqo7, doqo8, doqo9, doqo10 FCC ID: 2APR7-F109 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 : Dawen Zhu/Manager Contact information / address: NO.2 Baotang Road, Jinglian Community, Qiaotou Town, DongGuan, China

Dong Guan BlueFinger Electronics Co.,LTD 2021.03.05 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 BCTC Testing 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 : Dawen Zhu Contact information / address: NO.2 Baotang Road, Jinglian Community, Qiaotou Town, DongGuan, China

Dong Guan BlueFinger Electronics Co.,LTD Model Difference 2021-03-05 EUT NAME: Bluetooth keyboard FCC ID: 2APR7-F109 MODEL : F109, F1, F2, F3S, F8S, F8mini, F13, F17, F18, F19, F19A, F02, F04, F06, F07, F66, F88, F99, F180, F360, F79, F97, F102, F105, F108, F11, F129, P79, P97, P102, P105, P108, P109, P11, P129, W79, W97, W102, W105, W108, W109, W11, W129, K79, K97, K102, K105, K108, K109, K11, K129, KD-K1, KD-K2, KD-K3, KD- K4, KD-K5, KD-K6, KD-K7, KD-K8, KD-K9, KD-K10, doqo1, doqo2, doqo3, doqo4, doqo5, doqo6, doqo7, doqo8, doqo9, doqo10 All the model are the same circuit and RF module, only for model name and color. Regards Sincerely Client’s signature Client’s name / title : Dawen Zhu/ Manager Contact information / address: NO.2 Baotang Road, Jinglian Community, Qiaotou Town, DongGuan, China

External Photos

Size:40*20mm Bluetooth keyboard FCC ID: 2APR7-F109 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. Label location

Internal Photos Antenna

RF EXPOSURE EVALUATION METHOD FCC ID: 2APR7-F109 SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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 f(GHz) is the RF channel transmit frequency in GHz Power and distance are rounded to the nearest mW and mm before calculation The result is rounded to one decimal place for comparison 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. BT-BLE Modulation Test Channel Output Power (dBm) Limit (dBm) GFSK 1Mbps Low -5.808 30 GFSK 1Mbps Middle -4.179 30 GFSK 1Mbps High -3.912 30 GFSK 2Mbps Low -5.798 30 GFSK 2Mbps Middle -4.176 30 GFSK 2Mbps High -3.910 30 max possible output power (PK,conducted)：-3±1dBm 0dBi logarithmic terms convert to numeric result is nearly 1. -2dBm=0.63mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=0.63/5*√2.402=0.20≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2441MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 0.63/5*√2.441=0.20≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=0.63/5*√2.48=0.20≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Conclusion: No SAR is required.

No.：BCTC/RF-EMC-005 Page: 1 of 49 Edition：A.3 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2102890543E Applicant: Dong Guan BlueFinger Electronics Co.,LTD Product Name: Bluetooth keyboard Model/Type Ref.: F109 Tested Date: 2021-02-07 to 2021-03-01 Issued Date: 2021-03-01 Report No.: BCTC2102890543E No.：BCTC/RF-EMC-005 Page: 2 of 49 Edition：A.3 FCC ID: 2APR7-F109 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Bluetooth keyboard Trademark: N/A Model/Type Ref.: Refer to section 4.1 Prepared For: Dong Guan BlueFinger Electronics Co.,LTD Address: NO.2 Baotang Road, Jinglian Community, Qiaotou Town, DongGuan, China Manufacturer: Dong Guan BlueFinger Electronics Co.,LTD Address: NO.2 Baotang Road, Jinglian Community, Qiaotou Town, DongGuan, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Tangwei, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2021-02-07 Sample tested Date: 2021-02-07 to 2021-03-01 Issue Date: 2021-03-01 Report No.: BCTC2102890543E Test Standards FCC Part15.247 ANSI C63.10-2013 Test Results PASS Remark: This is Bluetooth BLE radio test report. Tested by: Approved by: Willem Wang/Project Handler Zero Zhou/Reviewer Report No.: BCTC2102890543E No.：BCTC/RF-EMC-005 Page: 3 of 49 Edition：A.3 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ............................................................. 5 2. TEST SUMMARY ...................................................... 6 3. MEASUREMENT UNCERTAINTY ........................................ 7 4. PRODUCT INFORMATION AND TEST SETUP ............................ 8 4.1 Product Information ..................................................... 8 4.2 Test Setup Configuration ................................................ 8 4.3 Support Equipment ..................................................... 9 4.4 Channel List ........................................................... 9 4.5 Test Mode ............................................................ 10 4.6 Table of parameters of text software setting ............................... 10 5. TEST FACILITY AND TEST INSTRUMENT USED ........................ 11 5.1 Test Facility ........................................................... 11 5.2 Test Instrument Used .................................................. 11 6. CONDUCTED EMISSIONS ............................................. 13 6.1 Block Diagram Of Test Setup ............................................ 13 6.2 Limit ................................................................. 13 6.3 Test procedure ........................................................ 13 6.4 EUT operating Conditions ............................................... 13 6.5 Test Result ........................................................... 14 7. RADIATED EMISSIONS ............................................... 16 7.1 Block Diagram Of Test Setup ............................................ 16 7.2 Limit ................................................................. 17 7.3 Test procedure ........................................................ 18 7.4 EUT operating Conditions ............................................... 20 7.5 Test Result ........................................................... 21 8. RADIATED BAND EMISSION MEASUREMENT AND RESTRICTED BANDS OF OPERATION ................................................... 25 8.1 Block Diagram Of Test Setup ............................................ 25 8.2 Limit ................................................................. 25 8.3 Test procedure ........................................................ 26 8.4 EUT operating Conditions ............................................... 26 8.5 Test Result ........................................................... 27 9. POWER SPECTRAL DENSITY TEST ................................... 28 9.1 Block Diagram Of Test Setup ............................................ 28 9.2 Limit ................................................................. 28 9.3 Test procedure ........................................................ 28 9.4 EUT operating Conditions ............................................... 28 9.5 Test Result ........................................................... 29 10. BANDWIDTH TEST ................................................... 33 10.1 Block Diagram Of Test Setup .......................................... 33 10.2 Limit ................................................................ 33 Report No.: BCTC2102890543E No.：BCTC/RF-EMC-005 Page: 4 of 49 Edition：A.3 10.3 Test procedure ....................................................... 33 10.4 EUT operating Conditions ............................................. 33 10.5 Test Result .......................................................... 34 11. PEAK OUTPUT POWER TEST ......................................... 38 11.1 Block Diagram Of Test Setup .......................................... 38 11.2 Limit ................................................................ 38 11.3 Test procedure ....................................................... 38 11.4 EUT operating Conditions ............................................. 38 11.5 Test Result .......................................................... 39 12. 100 KHZ BANDWIDTH OF FREQUENCY BAND EDGE ................... 40 12.1 Block Diagram Of Test Setup .......................................... 40 12.2 Limit ................................................................ 40 12.3 Test procedure ....................................................... 40 12.4 EUT operating Conditions ...................................…

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Report No.: BCTC2102890543E No.：BCTC/RF-EMC-005 Page: 47 of 49 Edition：A.3 15. EUT TEST SETUP PHOTOGRAPHS Conducted emissions Report No.: BCTC2102890543E No.：BCTC/RF-EMC-005 Page: 48 of 49 Edition：A.3 Radiated Measurement Photos