2A6K4B-BK01Bluetooth Stylus Pen

11 22 33 44 D D C C B B A A Title Number Revision Size A4 Date: 2022-04-18 Sheet of File: C:\Users\..\Bluetooth Module.SchDoc Drawn By: DVDD 1 GPIO26 8 NC 2 NC 3 NC 4 GPIO23 5 GPIO24 6 GPIO25 7 XTALIN 16 VIO 10 NC 11 I2C_SCL 12 I2C_SDA 13 VDDLPM 14 XTALOUT 15 GPIO5 24 SCANMODE 18 RFN 19 VPP 20 NC 21 GPIO3 22 GPIO4 23 WK_OPTION 32 GPIO8 26 NC 27 HVIN 28 HVOUT 29 NC 30 VIN 31 RSTN 9 ICE 17 GPIO6 25 U 3 MT3540 23 41 OSC 22pF C3 10nF C5 1.5pF C7 10nF C2 1uF C1 GND GND GND GND GND 22pF C4 GND 10nF C6 GND S2 S1 S3 GND D1 1K R1 0.1uF C8 10nF C9 GND Vol ＋ Vol- Home/App switcher BAT+ BAT+ Y2 24Mhz ANTENNA 11 22 33 44 D D C C B B A A Title Number Revision Size A4 Date: 2022-04-18 Sheet of File: C:\Users\..\Power module.SchDoc Drawn By: D 3 G 1 S 2 AO3401PMOS Vin 5V+ 4.7uF C1 10uFC3 105 C2 10KR1 1K R2 1K R3 1K R4 GND GND GND GND 100K R5 GND 104PC4 Battery 100 欧 R6 GND GND +3.7V PIN-1 1 PIN-2 2 PIN-3 3 PIN-4 4 PIN-5 5 FPC CON_5 GND PROG 5 VCC 4 CHRG 1 GND 2 BAT 3 U1 XT4054 VM 5 VM 4 VT 1 GND 2 VDD 3 U2XB5353A 1KR7 12 ZD 1KR8 GND 1MR9 1MR10 GND OUT 5 N/A 6 N/A 7 GND 8 N/A 4 LED 3 SW 2 VDD 1 *MCU SWSW GND

Becool Technology (Shenzhen) Co., Ltd. Model Difference Product Name: Bluetooth Stylus Pen Model Number: B-BK01, B-BK02, B-BK03, B-BK04, B-BK05, B-BK06, B-BK07, B-BK08, B-BK09, B-BK10, B-RB01, B-RB02, B-RB03, B-RB04, B-RB05, B- RB06, B-RB07, B-RB08, B-RB09, B-RB10 FCC Identifier: 2A6K4B-BK01 All the models are the same circuit and RF module, except the mode names and outlook color. Regards Sincerely Client’s signature Client’s name / title: Peter Li/ Manager Contact information: 3F, Building E, Fenda High-tech Park, Sanwei Community, Hangcheng Baoan Dist., Shenzhen, Guangdong Province, China

Becool Technology (Shenzhen) Co., Ltd. 1/1 Letter of Authorization Company: Becool Technology (Shenzhen) Co., Ltd. Address: 3F, Building E, Fenda High-tech Park, Sanwei Community, Hangcheng Baoan Dist., Shenzhen, Guangdong Province, China Product Name: Bluetooth Stylus Pen Model Number: B-BK01, B-BK02, B-BK03, B-BK04, B-BK05, B-BK06, B- BK07, B-BK08, B-BK09, B-BK10, B-RB01, B-RB02, B-RB03, B-RB04, B-RB05, B-RB06, B-RB07, B-RB08, B-RB09, B-RB10 FCC Identifier: 2A6K4B-BK01 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Peter Li Date: 2022-04-21 Title: Manager Signature of applicant:

Becool Technology (Shenzhen) Co., Ltd. 1/1 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 2022-04-21 Subject: Request for Confidentiality FCC ID: 2A6K4B-BK01 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual No ☐ Internal Photos No ☐ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Peter Li Title: Manager

Size:4.5*3mm M/N: B-BK01 FCC ID: 2A6K4B-BK01 Label location

ANT

Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220422015E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 1 of 30 FCC Part 15C Test Report FCC ID: 2A6K4B-BK01 Applicant: Becool Technology (Shenzhen) Co., Ltd. Address: 3F, Building E, Fenda High-tech Park, Sanwei Community, Hangcheng Baoan Dist., Shenzhen, Guangdong Province, China Manufacturer: Becool Technology (Shenzhen) Co., Ltd. Address: 3F, Building E, Fenda High-tech Park, Sanwei Community, Hangcheng Baoan Dist., Shenzhen, Guangdong Province, China EUT: Bluetooth Stylus Pen Trade Mark: N/A Model Number: B-BK01 B-BK02, B-BK03, B-BK04, B-BK05, B-BK06, B-BK07, B-BK08, B-BK09, B-BK10, B-RB01, B-RB02, B-RB03, B-RB04, B-RB05, B-RB06, B-RB07, B-RB08, B-RB09, B-RB10 Date of Receipt: Apr. 16, 2022 Test Date: Apr. 16, 2022 - Apr. 22, 2022 Date of Report: Apr. 22, 2022 Prepared By: Shenzhen DL Testing Technology Co., Ltd. Address: 101-201, Building C, Shuanghuan, No.8, Baoqing Road, Baolong Industrial Zone, Baolong Street, Longgang District, Shenzhen, Guangdong, China Applicable Standards: FCC PART 15 C 15.249 ANSI C63.10:2013 Test Result: Pass Report Number: DL-20220422015E Prepared (Test Engineer): Pxing Huang Reviewer (Supervisor): Jack Bu Approved (Manager): Jade Yang This test report is based on a single evaluation of one sample of above mentioned products. It is not permitted to be duplicated in extracts without written approval of Shenzhen DL Testing Technology Co., Ltd. Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220422015E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 2 of 30 Table of Contents Page 1 . SUMMARY OF TEST RESULTS 4 1.1 MEASUREMENT UNCERTAINTY 4 2 . GENERAL INFORMATION 5 2.1 GENERAL DESCRIPTION OF EUT 5 2.2 DESCRIPTION OF TEST MODES 6 2.3 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 6 2.4 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE) 7 2.5 TABLE OF PARAMETERS OF TEST SOFTWARE SETTING 7 2.6 EQUIPMENTS LIST FOR ALL TEST ITEMS 8 3 . EMC EMISSION TEST 9 3.1 CONDUCTED EMISSION MEASUREMENT 9 3.1.1 POWER LINE CONDUCTED EMISSION LIMITS 9 3.1.2 TEST PROCEDURE 9 3.1.3 DEVIATION FROM TEST STANDARD 9 3.1.4 TEST SETUP 10 3.1.5 EUT OPERATING CONDITIONS 10 3.1.6 TEST RESULTS 10 3.2 RADIATED EMISSION MEASUREMENT 13 3.2.1 RADIATED EMISSION LIMITS 13 3.2.2 TEST PROCEDURE 14 3.2.3 DEVIATION FROM TEST STANDARD 14 3.2.4 TEST SETUP 14 3.2.5 EUT OPERATING CONDITIONS 15 3.2.6 TEST RESULTS (BETWEEN 9KHZ – 30 MHZ) 16 3.2.7 TEST RESULTS (BETWEEN 30MHZ – 1GHZ) 17 3.2.8 TEST RESULTS (1GHZ~25GHZ) 19 3.3 RADIATED BAND EMISSION MEASUREMENT 20 3.3.1 TEST REQUIREMENT: 20 3.3.2 TEST PROCEDURE 20 3.3.3 DEVIATION FROM TEST STANDARD 20 3.3.4 TEST SETUP 21 3.3.5 EUT OPERATING CONDITIONS 21 4 . BANDWIDTH TEST 23 4.1 APPLIED PROCEDURES / LIMIT 23 4.1.1 TEST PROCEDURE 23 4.1.2 DEVIATION FROM STANDARD 23 4.1.3 TEST SETUP 23 4.1.4 EUT OPERATION CONDITIONS 23 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220422015E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 3 of 30 Table of Contents Page 4.1.5 TEST RESULTS 24 5 . ANTENNA REQUIREMENT 26 5.1 STANDARD REQUIREMENT 26 5.2 EUT ANTENNA 26 6 . TEST SEUUP PHOTO 27 7 . EUT PHOTO 29 Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220422015E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 4 of 30 1. SUMMARY OF TEST RESULTS Test procedures according to the technical standards: FCC Part15 (15.249) , Subpart C Standard Section Test Item Judgment Remark 15.207 Conducted Emission PASS 15.249(c), 15.209(a) 15.249(a), 15.205(a) Fundamental &Radiated Spurious Emission Measurement PASS 15.205, 15.249(d) Band Edge Emission PASS 15.215(c) 20dB Bandwidth PASS 15.203 Antenna Requirement PASS NOTE: (1)” N/A” denotes test is not applicable in this Test Report 1.1 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 Conducted Emission Test ±2.56dB 2 RF power,conducted ±0.42dB 3 Spurious emissions,conducted ±2.76dB 4 All emissions,radiated(<1G) ±3.65dB 5 All emissions,radiated(>1G) ±4.89dB 6 Temperature ±0.5°C 7 Humidity ±2% Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220422015E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 5 of 30 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Product Name: Bluetooth Stylus Pen Trademark N/A Model No.: B-BK01 B-BK02, B-BK03, B-BK04, B-BK05, B-BK06, B-BK07, B-BK08, B-BK09, B-BK10, B-RB01, B-RB02, B-RB03, B-RB04, B-RB05, B-RB06, B-RB07, B-RB08, B-RB09, B-RB10 Model Difference All samples are the same except the model number and appearance color, so we prepare " B-BK01 " for test only. Operation Frequency: BT:2402~2480MHz Channel numbers: BT:40CH Channel separation: BT:2M Modulation technology: GFSK Antenna Type: Internal Antenna Antenna gain: 0dBi Power supply: DC 3.7V from battery DC 5V from USB Note: 1.For a more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. 2.The EUT’s all information provided by client. 3. BLE Channel List Channel Frequency (MHz) Channel Frequency (MHz) Channel Frequency (MHz) 00 2402 14 2430 27 2456 01 2404 15 2432 28 2458 02 2406 16 2434 29 2460 03 2408 17 2436 30 2462 04 2410 18 2438 31 2464 05 2412 19 2440 32 2466 06 2414 20 2442 33 2468 07 2416 21 2444 34 2470 08 2418 22 2446 35 2472 09 2420 23 2448 36 2474 10 2422 24 2450 37 2476 11 2424 25 2452 38 2478 12 2426 26 2454 39 2480 13 2428 / / / / Shenzhen DL Testing Technology Co., Ltd. Report No.: DL-20220422015E Test Report Tel: 400-688-3552 Web:www.dl-cert.com Email: [email protected] Page 6 of 30 2.2 DESCRIPTION OF TEST MODES Note: (1) The measurements are performed at the highest, middle, lowest available channels. 2.3 BLOCK DIGR…

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Radiated Measurement Photos Conducted Measurement Photos