2AQ7K-S3Bluetooth Headphone

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. 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.

Shenzhen KingBoll Electronic Technology Co., Ltd Agent Authorization C ompany: Shenzhen KingBoll Electronic Technology Co., Ltd A ddress: 28C2, Block C, Electronic Technology Building, 2070 Shennan Zhong Road, Fuqiang Community, Huaqiang North Street, Futian District, Shenzhen, China P roduct Name: Bluetooth Headphone M odel Number(s): S3, S1, S2, S5, S6, S7, S8, S9, S10, S11, S12, S13, S15, S16, S17, S18, S19, Q1, Q2, Q3, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q15, Q16, Q17, Q18, Q19 P roduct Description: Bluetooth Headphone We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We dec lare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: Jan. 16, 2020 Name: Jian hui Cai Title: Manager Company: Shenzhen KingBoll Electronic Technology Co., Ltd

Shenzhen KingBoll Electronic Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Jan. 16, 2020 Subject; Request for Confidentiality FCC ID: 2AQ7K-S3 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Parts List Operational Description Tune-up Procedure It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Jian hui Cai Title: Manager

Model Difference Declaration To Whom It May Concern, We, Shenzhen KingBoll Electronic Technology Co., Ltd(Bluetooth Headphone) Trademark:N/A; Model Number: S3, S1, S2, S5, S6, S7, S8, S9, S10, S11, S12, S13, S15, S16, S17, S18, S19, Q1, Q2, Q3, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q15, Q16, Q17, Q18, Q19; All model’s the function, software and elec tric circuit are the same, only with a product color and model named different for commercial purpose. Test sample model: S3. Please contact me if you have any question. Name: Jian hui Cai Date: Jan. 16, 2020 Title: Manager Signature of applicant:

Annex A External Photos Report No.: HK2001030096-E Page 1 of 4 Report No.: HK2001030096-E Page 2 of 4 Report No.: HK2001030096-E Page 3 of 4 Report No.: HK2001030096-E Page 4 of 4

FCC ID LABEL: Ca. 5mm x 10mm Include in manual: 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 FCC ID: 2AQ7K-S3

Annex B Internal Photo Report No.: HK2001030096-E Page 1 of 5 Report No.: HK2001030096-E Page 2 of 5 Antenna Report No.: HK2001030096-E Page 3 of 5 Report No.: HK2001030096-E Page 4 of 5 Report No.: HK2001030096-E Page 5 of 5

Page 1 of 30 Report No.: HK2001030096-E FCC TEST REPORT Test report On Behalf of Shenzhen KingBoll Electronic Technology Co., Ltd For Bluetooth Headphone Model No.: S3, S1, S2, S5, S6, S7, S8, S9, S10, S11, S12, S13, S15, S16, S17, S18, S19, Q1, Q2, Q3, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q15, Q16, Q17, Q18, Q19 FCC ID: 2AQ7K-S3 Prepared for : Shenzhen KingBoll Electronic Technology Co., Ltd 28C2, Block C, Electronic Technology Building, 2070 Shennan Zhong Road, Fuqiang Community, Huaqiang North Street, Futian District, Shenzhen, China Prepared By : Shenzhen HUAK Testing Technology Co., Ltd. 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Date of Test: Jan. 02, 2020 ~ Jan. 09, 2020 Date of Report: Jan. 09, 2020 Report Number: HK2001030096-E Page 2 of 30 Report No.: HK2001030096-E TEST RESULT CERTIFICATION Applicant’s name ................. : Shenzhen KingBoll Electronic Technology Co., Ltd Address .................................. : 28C2, Block C, Electronic Technology Building, 2070 Shennan Zhong Road, Fuqiang Community, Huaqiang North Street, Futian District, Shenzhen, China Manufacture's Name ............ :Shenzhen KingBoll Electronic Technology Co., Ltd Address .................................. : 28C2, Block C, Electronic Technology Building, 2070 Shennan Zhong Road, Fuqiang Community, Huaqiang North Street, Futian District, Shenzhen, China Product description Trade Mark: N/A Product name ............................: Bluetooth Headphone Model and/or type reference: S3, S1, S2, S5, S6, S7, S8, S9, S10, S11, S12, S13, S15, S16, S17, S18, S19, Q1, Q2, Q3, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q15, Q16, Q17, Q18, Q19 Standards ............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.249 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen HUAK Testing Technology Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen HUAK Testing Technology 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. Date of Test ......................... Date (s) of performance of tests ...................................... Jan. 02, 2020 ~ Jan. 09, 2020 Date of Issue ........................ Jan. 09, 2020 Test Result ............................ Pass Testing Engineer : (Gary Qian) Technical Manager : (Eden Hu) Authorized Signatory : (Jason Zhou) Page 3 of 30 Report No.: HK2001030096-E Table of Contents Page 1 . TEST SUMMARY 4 2 . GENERAL INFORMATION 5 2.1 GENERAL DESCRIPTION OF EUT 5 2.2 Operation of EUT during testing 6 2.3 DESCRIPTION OF TEST SETUP 7 2.4 MEASUREMENT INSTRUMENTS LIST 8 3 . CONDUCTED EMISSIONS TEST 9 3.1 Conducted Power Line Emission Limit 9 3.2 Test Setup 9 3.3 Test Procedure 9 3.4 Test Result 10 4 RADIATED EMISSION TEST 12 4.1 Radiation Limit 12 4.2 Test Setup 12 4.3 Test Procedure 13 4.4 Test Result 13 5 out of Band Emissions 19 5.1 Limits 19 5.2 Test Procedure 19 5.3 Test Result 19 6 OCCUPIED BANDWIDTH MEASUREMENT 21 6.1 Test Setup 21 6.2 Test Procedure 21 6.3 Measurement Equipment Used 21 6.4 Test Result 21 7 ANTENNA REQUIREMENT 27 8 PHOTOGRAPH OF TEST 28 8.1 Radiated Emission 28 8.2 Conducted Emission 29 9 PHOTOGRAPH OF TEST 30 Page 4 of 30 Report No.: HK2001030096-E 1. TEST SUMMARY 1.1 TEST PROCEDURES AND RESULTS FCC PART 15.249 CONDUCTED EMISSIONS TEST §15.207 PASS RADIATED EMISSION TEST §15.249 (a) (d)/ §15.209 PASS out of Band Emissions §15.249 (d)/ §15.205 PASS OCCUPIED BANDWIDTH MEASUREMENT§15.215 (c) PASS ANTENNA REQUIREMENT §15.203 PASS 1.2 TEST FACILITY Test Firm : Shenzhen HUAK Testing Technology Co., Ltd. Address : 1F, B2 Building, Junfeng Zhongcheng Zhizao Innovation Park, Fuhai Street, Bao'an District, Shenzhen City, China Designation Number : CN1229 1.3 MEASUREMENT UNCERTAINTY Measurement Uncertainty Conducted Emission Expanded Uncertainty = 2.23dB, k=2 Radiated emission expanded uncertainty(9kHz-30MHz) = 3.08dB, k=2 Radiated emission expanded uncertainty(30MHz-1000MHz) = 4.42dB, k=2 Radiated emission expanded uncertainty(Above 1GHz) = 4.06dB, k=2 Page 5 of 30 Report No.: HK2001030096-E 2. GENERAL INFORMATION 2.1 GENERAL DESCRIPTION OF EUT Equipment Bluetooth Headphone Model Name S3 Serial No S1, S2, S5, S6, S7, S8, S9, S10, S11, S12, S13, S15, S16, S17, S18, S19, Q1, Q2, Q3, Q5, Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q15, Q16, Q17, Q18, Q19 Model Difference All model’s the function, software and electric circuit are the same, only with a product color and model named different. Test sample model: S3 FCC ID 2AQ7K-S3 Antenna Type internal Antenna Antenna Gain 0dBi BT Operation frequency 2402-2480MHz Number of Channels 79CH Modulation Type GFSK, π/4DQPSK, 8DPSK Power Source DC 3.7V from Battery or DC 5V from USB Power Rating DC 3.7V from Battery or DC 5V from USB Page 6 of 30 Report No.: HK2001030096-E 2.1.1 Carrier Frequency of Channels Channel List Channel Frequency (MHz) Channel Frequency (MHz) Channel Frequency (MHz) 00 2402 27 2429 54 2456 01 2403 28 2430 55 2457 02 2404 29 2431 56 2458 03 2405 30 2432 57 2459 04 2406 31 2433 58 2460 05 2407 32 2434 59 2461 06 2408 33 2435 60 2462 07 2409 34 2436 61 2463 08 2410 35 2437 62 2464 09 2411 36 2438 63 2465 10 2412 37 2439 64 2466 11 2413 38 2440 65 2467 12 2414 39 2441 66 2468 13 2415 40 2442 67 2469 14 2416 41 2443 68 2470 15 2417 42 2444 69 2471 16 2418 43 2445 70 2472 17 2419 44 2446 71 2473 18 2420 45 2447 72 2474 19 2421 46 2448 73 2475 20 2422 47 2449 74 2476 21 2423 48 2450 75 2477 22 2424 49 2451 76 2478 23 2425 50 2452 77 2479 24 2426 51 2453 78 2480 25 2427 52 2454 26 2428 53 2455 2.2 Operation of EUT during testing Operating Mode The mode is used: Transmitting mode Low Channel: 2402MHz Middle Channel: 2441MHz High Channel: 2480MHz Page 7 of 30 Report No.: HK2001030096-E 2.3 DESCRIPTION OF TES…

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Test Model：S3 Radiated Emission Conducted Emission