PIBB10Premium Wireless Speaker System

Audioengine LLC Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020/1/10 Subject; Request for Confidentiality FCC ID: PIBB10 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 pursuantto 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, Signature: Name: David Evans Title: Director

Ê REVISIONS REV DATE PRODUCT MODE: PART NAME: 20.0~100.0 5.0~20.0 CHAMFER 0.5X45 FILLET R=0.5 DIMENSION 100~ 1.0~5.0 0.1~1.0 +0.3 +0.2 +0.15 +0.1 +0.05 TOLERANCE DWG NO: PART NO: UNIT: SCALE: SIZE: REV: DRAWN BY: CHECKED BY: APPROVED BY: DATE: DATE: DATE: PAGE: 1/1 EVERVICTORY ELECTRONIC COMPANY LIMITED A2 £ à μÁ ” ”– œfi  ́ Àæ 19.75 14.15 42.71 10.8 7.2 7.5 8 8 13.5 8-3.5 6.2 6.2 41.5 77.5 85.5 R3 A1 REAR PANEL SILKSCREEN Dec 19, 2019 V03d A2+BT18092000001B

Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R19091815-1E11 Page 1 of 6 RF EXPOSURE REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : Audioengine LLC Address : 6500 River Place Blvd, Bldg 7, Ste 250, Austin, Tx 78730, USA Equipment under Test : Premium Wireless Speaker System Model No. : A1 Trade Mark : Audioengine FCC ID : PIBB10 Manufacturer : Evervictory Electronic Company Limited Address : Chu Chi Management District, Hu Men Town, Dong-Guan City, Guang-Dong Province, P. R. China ■Report No.: DDT-R19091815-1E11 ■Issued Date: Jan. 09, 2020 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R19091815-1E11 Page 2 of 6 TABLE OF CONTENTS Test report declares........................................................................................................3 1. General information ........................................................................................................ 5 1.1. Description of Equipment ............................................................................................... 5 1.2. Assess laboratory ........................................................................................................... 5 2. RF Exposure evaluation ................................................................................................. 5 2.1. Requirement ................................................................................................................... 5 2.2. Calculation Method ......................................................................................................... 6 2.3. Estimation Result ........................................................................................................... 6 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT -R19091815-1E11 Page 3 of 6 TEST REPORT DECLARE Stand ard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is assessed by Dongguan Dongdian Testing Service Co., Ltd and i n the configuration assessed the equipment complied with the standards specified above. The assessed res ults are contained in this report and Dongguan Dongdian Testing Service Co., Ltd is assumed of full responsibility for the accuracy and completeness of these assess. After evaluation, our opinion is that the equipment In Accordance with above st andard. Report No: DDT -R19091815-1E11 Date of Receipt: Nov. 18, 2019 Date of Test: Nov. 18, 2019 ~ Jan. 06, 2020 Prepared By: Approved By: ______ _________ _____________________ Sam Li /Engineer Damon Hu/EMC Manager Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Dongguan Dongdian Testing Service Co., Ltd. Applicant : Audioengine LLC Address : 6500 River Place Blvd, Bldg 7, Ste 250, Austin, Tx 78730, USA Equipment under Test : Premium Wireless Speaker System Model No. : A1 Trade mark : Audioengine Manufacturer : Evervictory Electronic Company Limited Address : Chu Chi Management District, Hu Men Town, Dong-Guan City, Guang-Dong Province, P. R. China Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R19091815-1E11 Page 4 of 6 Revision history Rev. Revisions Issue Date Revised By --- Initial issue Jan. 09, 2020 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R19091815-1E11 Page 5 of 6 1. General information 1.1. Description of Equipment 1.2. Assess laboratory Dongguan Dongdian Testing Service Co., Ltd. Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel: +86-0769-38826678, http://www.dgddt.com, Email: [email protected] 2. RF Exposure evaluation 2.1. Requirement Systems operating under the provisions of FCC 47 CFR section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as mobile device whereby a distance of 0.2m normally can be maintained between the user and the device, and below RF Permissible Exposure limit shall comply with. Limits for General Population/Uncontrolled Exposure EUT* Name : Premium Wireless Speaker System Model Number : A1 EUT function description : Please reference user manual of this device Power supply : AC 100-240 V, 50/60Hz Radio Specification : Bluetooth V4.1 Operation frequency : 2402MHz-2480MHz Modulation : GFSK, /4-DQPSK, 8DPSK Data rate : 1 Mbps, 2 Mbps, 3 Mbps Antenna Type : Dedicated PCB antenna, maximum PK gain: 2.86 dBi Sample Type : Series production Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R19091815-1E11 Page 6 of 6 2.2. Calculation Method From the peak EUT RF output power, the minimum mobile separation distance, d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained. 2.3. Estimation Result Mode PK Output power (dBm) Output power (mW) Antenna Gain (dBi) Antenna Gain (linear) MPE Values (mW/cm 2 ) MPE Limit (mW/cm 2 ) Bluetooth Max power 7.43 5.53 2.86 1.93 0.00212 1 Note: The estimation distance is 20cm Conclusion: No SAR evaluation required since transmitter power is below FCC threshold END OF REPORT

Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R19091815-1E6 Page 1 of 85 FCC CERTIFICATION TEST REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : Audioengine LLC Address : 6500 River Place Blvd, Bldg 7, Ste 250, Austin, Tx 78730, USA Equipment under Test : Premium Wireless Speaker System Model No. : A1 Trade Mark : Audioengine FCC ID : PIBB10 Manufacturer : Evervictory Electronic Company Limited Address : Chu Chi Management District, Hu Men Town, Dong-Guan City, Guang-Dong Province, P. R. China ■Report No.: DDT-R19091815-1E6 ■Issued Date: Jan. 09, 2020 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R19091815-1E6 Page 2 of 85 TABLE OF CONTENTS Test report declares........................................................................................................4 1. Summary of test results ................................................................................................. 6 2. General test information ................................................................................................. 7 2.1. Description of EUT ......................................................................................................... 7 2.2. Accessories of EUT ........................................................................................................ 8 2.3. Assistant equipment used for test .................................................................................. 8 2.4. Block diagram of EUT configuration for test .................................................................. 8 2.5. Deviations of test standard ............................................................................................. 8 2.6. Test environment conditions .......................................................................................... 9 2.7. Test laboratory................................................................................................................ 9 2.8. Measurement uncertainty ............................................................................................... 9 3. Equipment used during test ......................................................................................... 10 4. Maximum Peak Output Power ..................................................................................... 11 4.1. Block diagram of test setup .......................................................................................... 11 4.2. Limits ............................................................................................................................ 11 4.3. Test Procedure ............................................................................................................. 11 4.4. Test Result ................................................................................................................... 11 4.5. Original test data .......................................................................................................... 12 5. 20dB Bandwidth ........................................................................................................... 15 5.1. Block diagram of test setup .......................................................................................... 15 5.2. Limits ............................................................................................................................ 15 5.3. Test Procedure ............................................................................................................. 15 5.4. Test Result ................................................................................................................... 15 5.5. Original test data .......................................................................................................... 16 6. Carrier Frequency Separation ...................................................................................... 19 6.1. Block diagram of test setup .......................................................................................... 19 6.2. Limits ............................................................................................................................ 19 6.3. Test Procedure ............................................................................................................. 19 6.4. Test Result ................................................................................................................... 19 6.5. Original test data .......................................................................................................... 20 7. Number Of Hopping Channel ...................................................................................... 21 7.1. Block diagram of test setup .......................................................................................... 21 7.2. Limits ............................................................................................................................ 21 7.3. Test Procedure ............................................................................................................. 21 7.4. Test Result ................................................................................................................... 21 7.5. Original test data .......................................................................................................... 21 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R19091815-1E6 Page 3 of 85 8. Dwell Time ................................................................................................................... 23 8.1. Block diagram of test setup .......................................................................................... 23 8.2. Limits .........................................................…

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R19091815-1E6 Page 72 of 85 15. Test setup photograph Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R19091815-1E6 Page 73 of 85