2AXXD-MLBT2521BT Wireless HiFi speaker

FCCSTATEMENT ThisdevicecomplieswithPart15oftheFCCrules.Operationissubjecttothefollowingtwo conditions: 1)thisdevicemaynotcauseharmfulinterference,and 2)thisdevicemustacceptanyinterferencereceived,includinginterferencethatmaycauseundesired operation. Changesor modificationsnot expresslyapprovedbythepartyresponsiblefor compliancecouldvoid yourauthoritytooperatetheequipment. NOTE:ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection againstharmfulinterferenceinaresidentialinstallation. Thisequipmentgeneratesusesandcanradiateradiofrequencyenergyand,ifnotinstalledandused 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 equipmentdoescauseharmfulinterferencetoradioortelevisionreception,whichcanbedetermined byturningtheequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferencebyone ormoreofthefollowingmeasures: Reorientorrelocatethereceivingantenna. Increasetheseparationbetweentheequipmentandreceiver. Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiveris connected. Consultthedealeroranexperiencedradio/TVtechnicianforhelp.

Musilab Electronic (DongGuan) Co., Ltd Model Declaration letter We hereby declares: Product name: BT Wireless HiFi speaker Model: Eclipse 4, Eclipse 5, Eclipse 6 Trade Mark: -- All model’s the function , appearance, software, electric circuit, PCB layout and interior structure are the same except model name and size. The different models are designed for marketing. Company name: Musilab Electronic (DongGuan) Co., Ltd Company address: No.5 Huanwei Street,Fugang,Qingxi Town, Dongguan,Guangdong,China Place, Date, Signature: 2021.06.22 Name, Job Title and Dept.: Annie Jiang Manager

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BT-252 136*115mm 详见图纸说明 比例：1：1 2013-11-26 136 m m 115 mm S/N No.: UUID : AUX OPT R L POWER ~100-240V/50Hz L-SP Model No.: Eclipse 6 Output Power: (55W + 35W )*2 RMS Frequency Response: 35Hz - 20KHz Power Rating: ~100-240V 50/60Hz 180W www.musilabaudio.com Made in China 主副机后板丝印 主机后板丝印参照图 菲林图 S/N No.: UUID : AUX OPT R L POWER ~100-240V/50Hz L-SP Model No.: Eclipse 6 Output Power: (55W + 35W )*2 RMS Frequency Response: 35Hz - 20KHz Power Rating: ~100-240V 50/60Hz 180W www.musilabaudio.com Made in China A1 木纹色款丝印 Pantone Black C 50% 哑白*5125202400 产品料号 产品料号 哑黑*5025200011 2 mm 4 m m 10 mm 2 m m 1 m m 2 m m 2 m m 2 mm FCC ID : 2AXXD-MLBT2521 FCC ID : 2AXXD-MLBT2521

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FCC ID: 2AXXD-MLBT2521 RF EXPOSURE EVALUATION METHOD FCC ID: 2AXXD-MLBT2521 SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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 The result is rounded to one decimal place for comparison The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Maximum measured transmitter power. BT GFSK Test Channel Frequency (MHz) Peak Output Power (dBm) Peak Output Power (mW) CH00 2402 2.855 1.930 CH39 2441 4.699 2.951 CH78 2480 5.392 3.461 8DPSK Test Channel Frequency (MHz) Peak Output Power (dBm) Peak Output Power (mW) CH00 2402 1.329 1.358 CH39 2441 3.853 2.428 CH78 2480 4.718 2.963 Remark: The best case gain of the antenna is 0dBi. 0 dBi logarithmic terms convert to numeric result is nearly 1.00 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)] BT FCC ID: 2AXXD-MLBT2521 Te s t Channel [(max. power of channel, mW) (min. test separation distance,mm)] [f(GHz)] Result Limit GFSK CH00 1.930 5 2.402 0.598 3 CH39 2.951 5 2.441 0.922 3 CH78 3.461 5 2.480 1.090 3 8DPSK CH00 1.358 5 2.402 0.421 3 CH39 2.428 5 2.441 0.759 3 CH78 2.963 5 2.480 0.933 3 The test Result is less than 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. Conclusion: No SAR is required.

Report No.: 20EFBS10081 9961 Page 1 of 59 FCC Radio Test Report FCC ID: 2AXXD-MLBT2521 The report concerns: Original Grant Report Reference No. ................. : 20EFBS10081 9961 Date Sample(s) Received ........... : 2020-10-19 Date of Tested ............................. : From 2020-10-19 to 2020-11-13 Date of issue ............................... : 2020-11-13 Testing Laboratory ...................... : DongGuan ShuoXin Electronic Technology Co., Ltd. Address ...................................... : Zone A, 1F, No. 6, XinGang Road YuanGang Street, XinAn District, ChangAn Town, DongGuan City, GuangDong, China Applicant’s name ........................ : Musilab Electronic (DongGuan) Co., Ltd Address ...................................... : No.5 Huanwei Street,Fugang,Qingxi Town, Dongguan,Guangdong,China Manufacturer............................... : Musilab Electronic (DongGuan) Co., Ltd Equipment................................... : BT Wireless HiFi speaker Trade Mark ................................. : Musilab Model ........................................ : Eclipse 4, Eclipse 5, Eclipse 6 Ratings ....................................... : I/P: AC 100-240V 50/60Hz 0.5A Test Engineer: Blue Qiu Responsible Engineer : Smile Wang Authorized Signatory: King Wang Report No.: 20EFBS10081 9961 Page 2 of 59 Table of Contents Page 1 . TEST REPORT DECLARE 5 2 . SUMMARY OF TEST RESULTS 6 2.1 MEASUREMENT UNCERTAINTY 7 3 . GENERAL INFORMATION 8 3.1 GENERAL DESCRIPTION OF EUT 8 3.2 DESCRIPTION OF TEST MODES 10 3.3 PARAMETERS OF TEST SOFTWARE 11 3.4 BLOCK DIAGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED 11 3.5 SUPPORT UNITS 11 3.6 TEST ENVIRONMENT CONDITIONS 12 4 . AC POWER LINE CONDUCTED EMISSIONS TEST 13 4.1 LIMIT 13 4.2 TEST PROCEDURE 13 4.3 MEASUREMENT INSTRUMENTS LIST 13 4.4 TESTSETUP 14 4.5 EUT OPERATING CONDITIONS 14 4.6 TEST RESULTS 15 5 . RADIATED EMISSION TEST 17 5.1 LIMIT 17 5.2 TEST PROCEDURE AND SETTING 18 5.3 MEASUREMENT INSTRUMENTS LIST 19 5.4 TESTSETUP 19 5.5 EUT OPERATING CONDITIONS 20 5.6 TEST RESULTS - 9 KHZ TO 30MHZ 21 5.7 TEST RESULTS- 30 MHZ TO 1000MHZ 22 5.8 TEST RESULTS - ABOVE 1000MHZ(BAND EDGE) 24 5.9 TEST RESULTS - ABOVE 1000MHZ(HARMONIC) 32 6 . NUMBER OF HOPPING FREQUENCY 44 6.1 LIMIT 44 6.2 TEST PROCEDURE AND SETTING 44 6.3 MEASUREMENT INSTRUMENTS LIST 44 6.4 TEST SETUP 44 Report No.: 20EFBS10081 9961 Page 3 of 59 Table of Contents Page 6.5 EUT OPERATION CONDITIONS 44 6.6 TEST RESULTS 45 7 . AVERAGE TIME OF OCCUPANCY 46 7.1 LIMIT 46 7.2 TEST PROCEDURE AND SETTING 46 7.3 MEASUREMENT INSTRUMENTS LIST 46 7.4 TEST SETUP 46 7.5 EUT OPERATION CONDITIONS 46 7.6 TEST RESULTS 47 8 . HOPPING CHANNEL SEPARATION MEASUREMENT 49 8.1 LIMIT 49 8.2 TEST PROCEDURE AND SETTING 49 8.3 MEASUREMENT INSTRUMENTS LIST 49 8.4 TEST SETUP 49 8.5 EUT OPERATION CONDITIONS 49 8.6 TEST RESULTS 50 9 . BANDWIDTH TEST 52 9.1 LIMIT 52 9.2 TEST PROCEDURE AND SETTING 52 9.3 MEASUREMENT INSTRUMENTS LIST 52 9.4 TEST SETUP 52 9.5 EUT OPERATION CONDITIONS 52 9.6 TEST RESULTS 53 10 . MAXIMUM OUTPUT POWER 55 10.1 LIMIT 55 10.2 TEST PROCEDURE AND SETTING 55 10.3 MEASUREMENT INSTRUMENTS LIST 55 10.4 TEST SETUP 55 10.5 EUT OPERATION CONDITIONS 55 10.6 TEST RESULTS 56 11 . CONDUCTED SPURIOUS EMISSION 57 11.1 LIMIT 57 11.2 TEST PROCEDURE AND SETTING 57 11.3 MEASUREMENT INSTRUMENTS LIST 57 Report No.: 20EFBS10081 9961 Page 4 of 59 Table of Contents Page 11.4 TEST SETUP 57 11.5 EUT OPERATION CONDITIONS 57 11.6 TEST RESULTS 58 Report No.: 20EFBS10081 9961 Page 5 of 59 1. TEST REPORT DECLARE Applicant Musilab Electronic (DongGuan) Co., Ltd Address No.5 Huanwei Street,Fugang,Qingxi Town, Dongguan,Guangdong,China Manufacturer Musilab Electronic (DongGuan) Co., Ltd Address No.5 Huanwei Street,Fugang,Qingxi Town, Dongguan,Guangdong,China Factory Musilab Electronic (DongGuan) Co., Ltd Address No.5 Huanwei Street,Fugang,Qingxi Town, Dongguan,Guangdong,China Equipment BT Wireless HiFi speaker Model No. Eclipse 4, Eclipse 5, Eclipse 6 Trade Mark -- Standard FCC Part15, Subpart C (15.247) ANSI C63.10-2013 We Declare: The equipment described above is tested by DongGuan ShuoXin Electronic Technology Co., Ltd(ATT). and in the configuration tested the equipment complied with the standards specified above. The test results are contained in this test report and DongGuan ShuoXin Electronic Technology Co., Ltd.(ATT) is assumed of full responsibility for the accuracy and completeness of these tests. ATT is not responsible for the sampling stage, so the results only apply to the sample as received. ATT's reports apply only to the specific samples tested under conditions. It is manufacture’s responsibility to ensure that additional production units of this model are manufactured with the identical electrical and mechanical components. ATT shall have no liability for any declarations, inferences or generalizations drawn by the client or others from ATT issued reports. Report No.: 20EFBS10081 9961 Page 6 of 59 2. SUMMARY OF TEST RESULTS The EUT have been tested according to the applicable standards as referenced below: Standard(s) Section Test Item Judgment Remark FCC ISED 15.207 - AC Power Line Conducted Emissions N/A ------ 15.247(d) 15.205(a) 15.209(a) - Radiated Emission PASS ------ 15.247(a)(1)(iii) - Number of Hopping Frequency PASS ------ 15.247(a)(1)(iii) - Average Time Of Occupancy PASS ------ 15.247(a)(1) - Hopping Channel Separation PASS ------ 15.247(a)(1) - Bandwidth PASS ------ 15.247(a)(1) - Maximum Output Power PASS ------ 15.247(d) - Conducted Spurious Emission PASS ------ - - Frequency Stability PASS ------ 15.203 - Antenna Requirement PASS Note(2) Note: (1) “N/A” denotes test is not applicable in this test report (2) The device what use a permanently attached antenna were considered sufficient to comply with the provisions of 15.203. Report No.: 20EFBS10081 9961 Page 7 of 59 2.1 MEASUREMENT UNCERTAINTY Test Item Uncertainty Uncertainty for Conduction emission test (9kHz-150kHz) 3.7 dB Uncertainty for Conduction emission test (…

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Radiated Setup photo (Below 1G)
Radiated Setup photo (Above 1G) Conduction Setup photo