2AU6EDNS-T001Bluetooth USB Adapter

Connect Bluetooth adapter to computer, Open the CD in Windows Explorer and run Setup.exe under Windows folder 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 Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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 Denos Trade Co., Ltd. Agent Authorization Company: Shenzhen Denos Trade Co., Ltd. Address: Room 610 Shibida Building No. 55 ZhenHua Rd, Futian District Shen Zhen City GuangDong, China Product Name: Bluetooth USB Adapter Model Number(s): Techkey-001 Product Description: Bluetooth USB Adapter 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 declare 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: 2020-07-02 Name: ZhiXiong Fang Company: Shenzhen Denos Trade Co., Ltd.

Shenzhen Denos Trade Co., Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020-06-28 Subject; Request for Confidentiality FCC ID: 2AU6EDNS-T001 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 In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. 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, Shenzhen Denos Trade Co., Ltd. Shenzhen Denos Trade Co., Ltd. Contact person: ZhiXiong Fang

External Photos TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT . RIGHT VIEW OF EUT

FCC ID Label Location size: 9mm*9mm FCC ID: 2AU6EDNS-T001

Internal Photos VIEW OF EUT(PORT) OPEN VIEW OF EUT INTERNAL VIEW OF EUT-1 INTERNAL VIEW OF EUT-2 BT Antenna INTERNAL VIEW OF EUT-3

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Bluetooth USB Adapter Model Name Techkey-001 FCC ID 2AU6EDNS-T001 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v05 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 3. CALCULATION BR/EDR: P t =-2.669dBm=0.54mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(0.54mW /5mm) .[√2.480GHz)]=0.17<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. BLE: P t =-5.137dBm=0.31mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(0.31mW /5mm) .[√2.480GHz)]= 0.10<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Page 1 of 67 FCC Test Report Report No.: AGC00688200605FE03 FCC ID : 2AU6EDNS-T001 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Bluetooth USB Adapter BRAND NAME : Techkey MODEL NAME : Techkey-001 APPLICANT : Shenzhen Denos Trade Co.,Ltd DATE OF ISSUE : Jun. 28, 2020 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd CAUTION: This report shall not be reproduced except in full without the written permission of the test laboratory and shall not be quoted out of context. Report No.: AGC00688200605FE03 Page 2 of 67 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Jun. 28, 2020 Valid Initial Release Report No.: AGC00688200605FE03 Page 3 of 67 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY ............................................................................................................... 5 2. GENERAL INFORMATION ............................................................................................................................ 6 2.1. PRODUCT DESCRIPTION ..................................................................................................................... 6 2.2. TABLE OF CARRIER FREQUENCYS ..................................................................................................... 6 2.3. RECEIVER INPUT BANDWIDTH ............................................................................................................ 7 2.4. EXAMPLE OF A HOPPING SEQUENCY IN DATA MODE ....................................................................... 7 2.5. EQUALLY AVERAGE USE OF FREQUENCIES AND BEHAVIOUR ........................................................ 7 2.6. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................. 8 2.7. TEST METHODOLOGY .......................................................................................................................... 8 2.8. SPECIAL ACCESSORIES ....................................................................................................................... 8 2.9. EQUIPMENT MODIFICATIONS .............................................................................................................. 8 3. MEASUREMENT UNCERTAINTY ................................................................................................................. 9 4. DESCRIPTION OF TEST MODES ............................................................................................................... 10 5. SYSTEM TEST CONFIGURATION .............................................................................................................. 11 5.1. CONFIGURATION OF EUT SYSTEM .................................................................................................... 11 5.2. EQUIPMENT USED IN TESTED SYSTEM ............................................................................................. 11 5.3. SUMMARY OF TEST RESULTS ............................................................................................................. 11 6. TEST FACILITY ........................................................................................................................................... 12 7. PEAK OUTPUT POWER ............................................................................................................................. 13 7.1. MEASUREMENT PROCEDURE ........................................................................................................... 13 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 13 7.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 14 8. 20DB BANDWIDTH ..................................................................................................................................... 18 8.1. MEASUREMENT PROCEDURE ........................................................................................................... 20 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 20 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................. 20 9. CONDUCTED SPURIOUS EMISSION ........................................................................................................ 25 9.1. MEASUREMENT PROCEDURE ........................................................................................................... 27 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 27 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 27 9.4. LIMITS AND MEASUREMENT RESULT ............................................................................................... 27 Report No.: AGC00688200605FE03 Page 4 of 67 10. RADIATED EMISSION ............................................................................................................................... 35 10.1. MEASUREMENT PROCEDURE ......................................................................................................... 37 10.2. TEST SETUP ....................................................................................................................................... 39 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................. 40 10.4. TEST RESULT ..................................................................................................................................... 40 11. NUMBER OF HOPPING FREQUENCY ..................................................................................................... 50 11.1. MEASUREMENT PROCEDUR…

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Test Setup Photos CONDUCTED EMISSION TEST SETUP RADIATED EMISSION TEST SETUP BELOW 1GHZ RADIATED EMISSION TEST SETUP ABOVE 1GHZ CONDUCTED TEST SETUP