2AI6I-HAKIIWINDHAKII WIND

正 背 FCC Caution： 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. Any 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 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Guangzhou Havit Technology Co.,LTD Model Difference Product Name: HAKII WIND Trademark: HAKII Model Number(s): HAKII WIND, HAKII WIND, HAKII WIND 1, HAKII WIND 2, HAKII WIND 3, HAKII WIND 4 FCC ID: 2AI6I-HAKIIWIND All the model are the same circuit and RF module, except model names. Regards Sincerely Client’s signature: Client’s name / title : Yang Wei /Manager Contact information / address: ROOM 1307, 13F, PHASE 2 B, C BUILDING OF POLY WORLD TRADE CENTER, NO.1000, XINGANG EAST ROAD, HAIZHU GUANGDONG China 510000

Guangzhou Havit Technology Co.,LTD 2021.12.21 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: HAKII WIND Trademark: HAKII MODEL : HAKII WIND, HAKII WIND, HAKII WIND 1, HAKII WIND 2, HAKII WIND 3, HAKII WIND 4 FCC ID: 2AI6I-HAKIIWIND 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 : Yang Wei /Manager Contact information / address: ROOM 1307, 13F, PHASE 2 B, C BUILDING OF POLY WORLD TRADE CENTER, NO.1000, XINGANG EAST ROAD, HAIZHU GUANGDONG China 510000

Guangzhou Havit Technology Co.,LTD 2021.12.21 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 : Yang Wei /Manager Contact information / address: ROOM 1307, 13F, PHASE 2 B, C BUILDING OF POLY WORLD TRADE CENTER, NO.1000, XINGANG EAST ROAD, HAIZHU GUANGDONG China 510000

External Photos

Size:20*10mm Label location FCC ID: 2AI6I-HAKIIWIND

No.：BCTC/RF-EMC-005 Page 1 of 67 Edition：A.4 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2112901996E Applicant: Guangzhou Havit Technology Co.,LTD Product Name: HAKII WIND Model/Type Ref.: HAKII WIND Tested Date: 2021-12-02 to 2021-12-13 Issued Date: 2021-12-14 Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 2 of 67 Edition：A.4 FCC ID: 2AI6I-HAKIIWIND 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: HAKII WIND Trademark: HAKII Model/Type Ref.: HAKII WIND HAKII WIND, HAKII WIND 1, HAKII WIND 2, HAKII WIND 3, HAKII WIND 4 Prepared For: Guangzhou Havit Technology Co.,LTD Address: ROOM 1307, 13F, PHASE 2 B, C BUILDING OF POLY WORLD TRADE CENTER, NO.1000, XINGANG EAST ROAD, HAIZHU GUANGDONG China 510000 Manufacturer: Guangzhou Havit Technology Co., Ltd. Address: ROOM 1307, 13F, PHASE 2 B, C BUILDING OF POLY WORLD TRADE CENTER, NO.1000, XINGANG EAST ROAD, HAIZHU GUANGDONG China 510000 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: 2021-12-02 Sample tested Date: 2021-12-02 to 2021-12-13 Issue Date: 2021-12-14 Report No.: BCTC2112901996E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is Bluetooth Classic radio test report. Tested by: Approved by: Eric Yang/Project Handler Zero Zhou/Reviewer Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 3 of 67 Edition：A.4 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 ............................................................................................... 8 4.4 Channel List .......................................................................................................... 9 4.5 Test Mode ............................................................................................................. 9 4.6 Table Of Parameters Of Text Software Setting ..................................................... 9 5. Test Facility And Test Instrument Used ............................................................... 10 5.1 Test Facility ......................................................................................................... 10 5.2 Test Instrument Used .......................................................................................... 10 6. Conducted Emissions .......................................................................................... 12 6.1 Block Diagram Of Test Setup .............................................................................. 12 6.2 Limit .................................................................................................................... 12 6.3 Test Procedure ................................................................................................... 12 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 .................................................................................. 19 7.5 Test Result .......................................................................................................... 19 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 23 8.1 Block Diagram Of Test Setup .............................................................................. 23 8.2 Limit .................................................................................................................... 23 8.3 Test Procedure ................................................................................................... 24 8.4 EUT Operating Conditions .................................................................................. 24 8.5 Test Result .......................................................................................................... 25 9. Conducted Emission ........................................................................................... 26 9.1 Block Diagram Of Test Setup .............................................................................. 26 9.2 Limit .................................................................................................................... 26 9.3 Test Procedure ..........................................................................................…

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Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 50 of 67 Edition：A.4 GFSK Middle Channel GFSK High Channel Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 51 of 67 Edition：A.4 π/4DQPSK Low Channel π/4DQPSK Middle Channel Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 52 of 67 Edition：A.4 π/4DQPSK High Channel 8DPSK Low Channel Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 53 of 67 Edition：A.4 8DPSK Middle Channel 8DPSK High Channel Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 54 of 67 Edition：A.4 13. Number Of Hopping Frequency 13.1 Block Diagram Of Test Setup 13.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. 13.3 Test Procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 100kHz. VBW = 300kHz. Sweep = auto; Detector Function = Peak. Trace = Max hold. 3. Allow the trace to stabilize. It may prove necessary to break the span up to sections. in order to clearly show all of the hopping frequencies. The limit is specified in one of the subparagraphs of this Section. 4. Set the spectrum analyzer: Start Frequency = 2.4GHz, Stop Frequency = 2.4835GHz. Sweep=auto; Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 55 of 67 Edition：A.4 13.4 Test Result Test Plots: 79 Channels in total GFSK π/4DQPSK Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 56 of 67 Edition：A.4 8DPSK Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 57 of 67 Edition：A.4 14. Dwell Time 14.1 Block Diagram Of Test Setup 14.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. Frequency hopping systems may avoid or suppress transmissions on a particular hopping frequency provided that a minimum of 15 channels are used. 14.3 Test Procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set spectrum analyzer span = 0. Centred on a hopping channel; 3. Set RBW = 1MHz and VBW = 3MHz.Sweep = as necessary to capture the entire dwell time per hopping channel. Set the EUT for DH5, DH3 and DH1 packet transmitting. 4. Use the marker-delta function to determine the dwell time. If this value varies with different modes of operation (e.g.. data rate. modulation format. etc.). repeat this test for each variation. The limit is specified in one of the subparagraphs of this Section. Submit this plot(s). Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 58 of 67 Edition：A.4 14.4 Test Result DH5 Packet permit maximum 1600 / 79 / 6 hops per second in each channel (5 time slots RX, 1 time slot TX). DH3 Packet permit maximum 1600 / 79 / 4 hops per second in each channel (3 time slots RX, 1 time slot TX). DH1 Packet permit maximum 1600 / 79 /2 hops per second in each channel (1 time slot RX, 1 time slot TX). So, the Dwell Time can be calculated as follows: DH5:1600/79/6*0.4*79*(MkrDelta)/1000 DH3:1600/79/4*0.4*79*(MkrDelta)/1000 DH1:1600/79/2*0.4*79*(MkrDelta)/1000 Remark: Mkr Delta is once pulse time. Modulation Channel Data Packet pulse time(ms) Dwell Time(s) Limits(s) GFSK Middle DH1 0.394 0.126 0.4 DH3 1.656 0.265 0.4 DH5 2.916 0.311 0.4 π/4DQPSK Middle 2DH1 0.398 0.127 0.4 2DH3 1.650 0.264 0.4 2DH5 2.910 0.310 0.4 8DPSK Middle 3DH1 0.397 0.127 0.4 3DH3 1.656 0.265 0.4 3DH5 2.910 0.310 0.4 Test Plots GFSK DH1 Middle Channel Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 59 of 67 Edition：A.4 GFSK DH3 Middle Channel GFSK DH5 High Middle Channel Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 60 of 67 Edition：A.4 π/4DQPSK DH1 Middle Channel π/4DQPSK DH3 Middle Channel Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 61 of 67 Edition：A.4 π/4DQPSK DH5 Middle Channel 8DPSK DH1 Middle Channel Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 62 of 67 Edition：A.4 8DPSK DH3 Middle Channel 8DPSK DH5 Middle Channel Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 63 of 67 Edition：A.4 15. Antenna Requirement 15.1 Limit 15.203 requirement: For intentional device, according to 15.203: an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. 15.2 Test Result The EUT antenna is CHIP antenna, fulfill the requirement of this section. Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 64 of 67 Edition：A.4 16. EUT Photographs EUT Photo 1 EUT Photo 2 Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 65 of 67 Edition：A.4 17. EUT Test Setup Photographs Conducted emissions Radiated Measurement Photos Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 66 of 67 Edition：A.4 Report No.: BCTC2112901996E No.：BCTC/RF-EMC-005 Page 67 of 67 Edition：A.4 STATEMENT 1.The equipment lists are traceable to the national reference standards. 2.The test report can not be partially copied unless prior written approval is issued from our lab. 3.The test report is invalid without stamp of laboratory. 4.The test report is invalid without signature of person(s) testing and authorizing. 5.The test process and test result is only related to the Unit Under Test. 6.The quality system of our laboratory is in accordance with ISO/IEC17025. 7.If there is any objection to report, the client should inform issuing laboratory within 15 days from the date of receiving test report. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Tangwei, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China TEL：400-788-9558 P. C.: 518103 FAX：0755-33229357 Website：http://www.chnbctc.com E-Mail：[email protected] ※※※※※ END ※※※※※

Conducted emissions Radiated Measurement Photos