2AXSN-PROISpeaker box

Rev 11/ (ELECT Federal Authori Confid e Pursua n treatmen Exhibi t Block D Descript The ab o the publ unjustifi The ap p applicat for this Pursua n tempora Short-t e Exhibi t Externa Photos, Sincere l Joel Ro d ELECT /20/07 TRON-X LL Communic zation and E entiality Req nt to Section nt of inform t Type Diagram, Sc tion ove material lic. The pub fied benefits plicant unde tion and all application nt to DA04- ary confiden erm confiden t Type l Photos , I n Manual ly, driguez/ FO RON-X LL LC) cations Com Evaluation quest regard ns 0.457 and mation accom hematics, O ls contain tr blic disclosu s to its comp erstands that accompany . 1705 June 1 ntial treatme ntiality requ nternal Phot OUNDER LC mmission Division ding applica d 0.459 of th mpanying th Operational rade secrets ure of these petitors. t pursuant to ying docume 15, 2004 of ent of inform uested: 180 tos, Test Se ation for cer he Commis his applicat Fi l Blo De and propri e e materials m o Section 0. entation wil fthe Commi mation acco days Fi l etup Ex Se t rtification o sion’s Rul e ion as outlin le Name ock Diagram escription .pd etary inform may be harm .457 of the ll not be ma ission’s pub ompanying le Name ternal Photo tup Photos.p f FCC ID: 2 es, we hereb ned below: m .pdf, Schem df mation not c mful to the a Rules, discl ade before th blic notice, w this applica s.pdf, Interna pdf, User Ma 2AXSN-PR by request co matics .pdf , customarily applicant an losure of th he date of th we also requ ation as outl al Photos.pd anual.pdf ROI onfidential Operation released to nd provide is he Grant uest lined below df, Test w:

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PRO I PROI 2AXSN-PROI SPEAKON

Internal photos: Antenna ---The End---

FCC ID: 2AXSN-PROI RF EXPOSURE EVALUATION According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in §1.1307(b) Limits for Maximum Permissible Exposure (MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 11.1 Friis transmission formula: Pd= (Pout*G)\ (4*pi*R 2 ) Where Pd= Power density in mW/cm 2 Pout=output power to antenna in mW G= Numeric gain of the antenna relative to isotropic antenna Pi=3.1416 R= distance between observation point and center of the radiator in cm Pd the limit of MPE,1mW/cm 2 . If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. mW = 10^( dBm/10) 11.2 Measurement Result Operation Frequency: 2402MHz-2480MHz; Antenna gain: -0.58 dBi; R=20cm BR/EDR Channel Freq. (MHz) modulation Measured power (dBm) Tune-up power (dBm) Max tune-up power (dBm) Antenna Gain Numeric Evaluation result (mW/cm2) Power density Limits (mW/cm2 ) 2402 GFSK 0.894 -1 to 1 1 0.87 0.000219144 1 2440 0.973 -1 to 1 1 0.87 0.000219144 1 2480 0.884 -1 to 1 1 0.87 0.000219144 1 2402 pi/4- DQPSK 1.514 0 to 2 2 0.87 0.000275886 1 2440 1.139 0 to 2 2 0.87 0.000275886 1 2480 1.077 0 to 2 2 0.87 0.000275886 1 *** End of Report ***

Report No. ES201126010W Page 1 of 55 Ver.1.0 TEST REPORT $二维码$ Product Name : Speaker box Model Number : PRO I, PRO II, PRO III, PRO IV, PRO V, PRO VI, PRO VII FCC ID : 2AXSN-PROI Prepared for : ELECTRON-X LLC Address : 6005 Milwee st ste 911, Houston, Texas, United States Prepared by : EMTEK (SHENZHEN) CO., LTD. Address : Building 69, Majialong Industry Zone, Nanshan District, Shenzhen, Guangdong, China Tel: (0755) 26954280 Fax: (0755) 26954282 Report Number : ES201126010W Date(s) of Tests : November 26, 2020 to December 10, 2020 Date of Issue : December 11,2020 Report No. ES201126010W Page 2 of 55 Ver.1.0 Table of Contents 1 TEST RESULT CERTIFICATION ............................................................................................................ 3 2 EUT TECHNICAL DESCRIPTION .......................................................................................................... 4 3 SUMMARY OF TEST RESULT ............................................................................................................... 5 4 TEST METHODOLOGY .......................................................................................................................... 6 4.1 GENERAL DESCRIPTION OF APPLIED STANDARDS ....................................................................... 6 4.2 MEASUREMENT EQUIPMENT USED .................................................................................................. 6 4.3 DESCRIPTION OF TEST MODES ........................................................................................................ 7 5 FACILITIES AND ACCREDITATIONS ................................................................................................... 8 5.1 FACILITIES ............................................................................................................................................ 8 5.2 LABORATORY ACCREDITATIONS AND LISTINGS ............................................................................. 8 6 TEST SYSTEM UNCERTAINTY ............................................................................................................. 8 7 SETUP OF EQUIPMENT UNDER TEST ................................................................................................. 9 7.1 RADIO FREQUENCY TEST SETUP 1 .................................................................................................. 9 7.2 RADIO FREQUENCY TEST SETUP 2 .................................................................................................. 9 7.3 CONDUCTED EMISSION TEST SETUP ............................................................................................ 10 7.4 SUPPORT EQUIPMENT ..................................................................................................................... 11 8 FREQUENCY HOPPING SYSTEM REQUIREMENTS ......................................................................... 12 8.1 STANDARD APPLICABLE .......................................................................................................................... 12 8.2 EUT PSEUDORANDOM FREQUENCY HOPPING SEQUENCE ........................................................................ 12 8.3 EQUAL HOPPING FREQUENCY USE ......................................................................................................... 13 8.4 FREQUENCY HOPPING SYSTEM .............................................................................................................. 13 9 TEST REQUIREMENTS ........................................................................................................................ 14 9.1 20DB BANDWIDTH ............................................................................................................................. 14 9.2 CARRIER FREQUENCY SEPARATION ............................................................................................. 18 9.3 NUMBER OF HOPPING FREQUENCIES ........................................................................................... 22 9.4 AVERAGE TIME OF OCCUPANCY (DWELL TIME) ............................................................................ 24 9.5 MAXIMUM PEAK CONDUCTED OUTPUT POWER ........................................................................... 27 9.6 CONDUCTED SUPRIOUS EMISSION ............................................................................................... 31 9.7 RADIATED SPURIOUS EMISSION ..................................................................................................... 38 9.8 CONDUCTED EMISSION TEST ......................................................................................................... 51 9.9 ANTENNA APPLICATION ................................................................................................................... 54 Report No. ES201126010W Page 3 of 55 Ver.1.0 1 TEST RESULT CERTIFICATION Applicant : ELECTRON-X LLC Address : 6005 Milwee st ste 911, Houston, Texas, United States Manufacturer : NINGBO CENTRAL STAR ELECTRONIC TECHNOLOGY CO.,LTD Address : #1501 No.7 Building, Smart Park of Ningbo, China 315000 EUT : Speaker box Model Name : PRO I, PRO II, PRO III, PRO IV, PRO V, PRO VI, PRO VII Trademark : N/A Measurement Procedure Used: APPLICABLE STANDARDS STANDARD TEST RESULT FCC 47 CFR Part 2, Subpart J FCC 47 CFR Part 15, Subpart C PASS The above equipment was tested by EMTEK(SHENZHEN) CO., LTD.The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.10 (2013) and the energy emitted by the sample EUT tested as described in this report is in compliance with the requirements of FCC Rules Part 2 and Part 15.247. The test results of this report relate only to the tested sample identified in this report. Date of Test : November 26, 2020 to December 10, 2020 Prepared by : Sewen Guo /Editor Reviewer : Joe Xia/Editor Approve & Authorized Signer : Lisa Wang/Manager Report No. ES2…

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Conducted Radiated ---The End---