2BFJ5-ASTRUMMZPROBluetooth Headset

20*15mm

TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Report Number: 68.950.24.0394.01A RF exposure Estimation 1. Introduction Product: Bluetooth Headset Model No.: ASTRUM MZ PRO, HT330, HT260, HT510, HT520 FCC ID: 2BFJ5-ASTRUMMZPRO The EUT is a Bluetooth Headset, which contain BT function inside. Note: All models have the same technical construction including circuit diagram, PCB layout, components and component layout. Only the model’s name and outlook/color are different. So RF exposure evaluation only applied on ASTRUM MZ PRO, other models are deemed to fulfill the requirement. 2. Details about the Test Laboratory Company name: TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen 518052, P.R. China Telephone: 86 755 8828 6998 Fax: 86 755 828 5299 FCC Registration No.: 514049 FCC Designation Number: CN5009 3. Limit and Guidelines on Exposure to Electromagnetic Fields According to§15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB 447498 D01 Mobile Portable RF Exposure v05r02, no SAR required if power is lower than the flowing threshold: 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 calculation25 • The result is rounded to one decimal place for comparison • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12&13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen City, 518052, P. R. China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Report Number: 68.950.24.0394.01A 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. 4. Calculation method [(max. power of` channel, including tune-up tolerance, mW) / (min. test separation distance, mm)] ·[√f(GHz)] ≤ 3.0 Conducted Power + tune up tolerance = 3.93dBm= 2.472mW Distance = 5 mm f = 2.402 GHz [2.472/5] * SQRT (2.402) = 0.766 0.766≤ 3.0 Therefore, excluded from SAR testing. - TÜV SÜD China, Shenzhen Branch – Reviewed by: Prepared By: John Zhi/Project Manager Date: 2024-04-19 Sanvin Zheng/Project Engineer Date: 2024-04-19

ShenzhenShuodianElectronicTechnologyCo.,Ltd Date:2014-6-30Page number3-8 ShenzhenShuodianElectronicTechnologyCo.,Ltd 2.2Productelectricalperformancetestdata 2.21 Testenvironmentandequipment Testenvironment： temperature：10°C——+30°C Relativehumidity：≤80%（+40°C） Testequipment： Networkanalyzer KEYSIGHTE5071C Multiprobemicrowavedarkroom 4.22.1Productelectricalperformancetestdata： Marker(MHZ)240024502500 Returnloss-5.9-14.5-6.5 VSWR2.91.42.7 ShenzhenShuodianElectronicTechnologyCo.,Ltd Date:2014-6-30Page number4-8 ShenzhenShuodianElectronicTechnologyCo.,Ltd 2.22.2Gain,efficiency,andradiationdirectionmaps ShenzhenShuodianElectronicTechnologyCo.,Ltd Date:2014-6-30Page number5-8 ShenzhenShuodianElectronicTechnologyCo.,Ltd Frequency （MHz） 24002410242024302440245024602470248024902500 Gain（dBi） -4.25-3.91-2.37-0.880.981.971.890.500.16-0.08-2.06 Efficien（%） 23.925.226.126.927.227.326.324.322.420.419.4 2450MHzDirectionalDiagram： Gaingraph

Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 1 of 54 FCC - TEST REPORT Report Number : 68.950.24.0394.01 Date of Issue: 2024-04-19 Model : ASTRUM MZ PRO, HT330, HT260, HT510, HT520 Product Type : Bluetooth Headset Applicant : ASTRUM WORLD INC Address : 3580 WILSHIRE BLVD, 1410 LOS ANGELES, CA 90010 United States Manufacturer : SHENZHEN AKAUDIO CO., LIMITED Address : 7F, Bldg A (#2), 1st Shuichanjingwan Industrial Area, Nanchang Village, Gushu, Bao'an Dist., Shenzhen, China Test Result : ◼ Positive  Negative Total pages including Appendices : 54 Any use for advertising purposes must be granted in writing. This technical report may only be quoted in full. This report is the result of a single examination of the object in question and is not generally applicable evaluation of the quality of other products in regular production. For further details, please see testing and certification regulation, chapter A-3.4. Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 2 of 54 1 Table of Contents 1 Table of Contents ..................................................................................................................................................2 2 Details about the Test Laboratory .........................................................................................................................3 3 Description of the Equipment Under Test .............................................................................................................4 4 Summary of Test Standards .................................................................................................................................5 5 Summary of Test Results ......................................................................................................................................6 6 General Remarks ..................................................................................................................................................7 7 Test Setups ...........................................................................................................................................................8 8 Systems Test Configuration ..................................................................................................................................9 9 Technical Requirement ...................................................................................................................................... 10 9.1 Conducted Peak Output Power .................................................................................................................. 10 9.2 20 dB Bandwidth ........................................................................................................................................ 15 9.3 Carrier Frequency Separation .................................................................................................................... 20 9.4 Number of Hopping Frequencies ............................................................................................................... 22 9.5 Dwell Time .................................................................................................................................................. 24 9.6 Spurious RF Conducted Emissions ........................................................................................................... 32 9.7 Band Edge Testing ..................................................................................................................................... 40 9.8 Spurious Radiated Emissions for Transmitter ............................................................................................ 46 10 Test Equipment List ............................................................................................................................................ 53 11 System Measurement Uncertainty ..................................................................................................................... 54 Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 3 of 54 2 Details about the Test Laboratory Details about the Test Laboratory Test Site 1 Company name: TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District Shenzhen 518052 P.R. China Telephone: 86 755 8828 6998 Fax: 86 755 828 5299 FCC Registration No.: 514049 FCC Designation Number: CN5009 Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 4 of 54 3 Description of the Equipment Under Test Product: Bluetooth Headset Model No.: ASTRUM MZ PRO, HT330, HT260, HT510, HT520 Model difference.: All models have the same technical construction including circuit diagram, PCB layout, components and component layout. Only the model’s name and outlook/color are different. So the main test model is ASTRUM MZ PRO. Brand name: ASTRUM FCC ID: 2BFJ5-ASTRUMMZPRO Options and accessories: N/A Ba…

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Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 40 of 54 9.7 Band Edge Testing Test Method 1. The RF output of EUT was connected to the test receiver by RF cable. The path loss was compensated to the results for each measurement. 2. Set to the maximum power setting and enable the EUT transmit continuously. Set the EUT to the lowest frequency channel. 3. Set RBW = 100 kHz, VBW=300 kHz, Peak Detector, Trace: Max hold, Sweep time: Coupled, Span: Wide enough to capture the peak level of the emission operating on the channel closest to the band edge, as well as any modulation products that fall outside of the authorized band of operation. Allow the trace to stabilize. 4. Set the marker on the emission at the band edge, or on the highest modulation product outside of the band, if this level is greater than that at the band edge. Enable the marker- delta function, and then use the marker-to-peak function to move the marker to the peak of the in-band emission. 5. Set the EUT to the highest frequency channel and repeat step 2) to 4) 6. Enable the EUT hopping mode, repeat the test. Limit: According to §15.247(d), Band Edge limit as below: In any 100kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated device is operating, the RF power that is produced shall be at least 20 dB below that in the100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement, provided that the transmitter demonstrates compliance with the peak conducted power limits. Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 41 of 54 Band Edge Mode TX Type Frequency (MHz) Packet Type ANT Level of Reference (dBm) Limit (dBm) Verdict GFSK SISO 2402 DH5 1 0.77 -19.23 Pass 2441 DH5 1 0.31 -19.69 Pass 2480 DH5 1 0.36 -19.64 Pass HOPP DH5 1 5.74 -14.26 Pass 5.74 -14.26 Pass Pi/4DQPSK SISO 2402 2DH5 1 4.32 -15.68 Pass 2441 2DH5 1 3.66 -16.34 Pass 2480 2DH5 1 3.69 -16.31 Pass HOPP 2DH5 1 4.13 -15.87 Pass 4.13 -15.87 Pass 8DPSK SISO 2402 3DH5 1 4.81 -15.19 Pass 2441 3DH5 1 4.61 -15.39 Pass 2480 3DH5 1 0.77 -19.23 Pass HOPP 3DH5 1 0.75 -19.25 Pass 0.75 -19.25 Pass GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_HCH_2480MHz_Ant1_NTNV GFSK_DH5_HOPP_Ant1_NTNV Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 42 of 54 GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 43 of 54 Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 44 of 54 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV 8DPSK_3DH5_HOPP_Ant1_NTNV 8DPSK_3DH5_HOPP_Ant1_NTNV Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 45 of 54 Report Number: 68.950.24.0394.01 EMC_SZ_FR_23.06 FCC Release 2023-12-01 TÜV SÜD Certification and Testing (China) Co., Ltd. Shenzhen Branch Building 12 & 13, Zhiheng Wisdomland Business Park, Guankou Erlu, Nantou, Nanshan District, Shenzhen, Guangdong, China Tel. +86 755 8828 6998, Fax: +86 755 8828 5299 Page 46 of 54 9.8 Spurious Radiated Emissions for Transmitter Test Method 1. The EUT was place on a turn table which is 1.5m above ground plane for above 1GHz and 0.8m above ground for below 1GHz at 3 meters chamber room for test. The table was rotated 360 degrees to determine the position of the highest radiation. 2. Set to the maximum power setting and enable the EUT transmit continuously 3. The EUT was set 3 meters away from the interference – receiving antenna, which was mounted on the top of a variable – height antenna tower. 4. The height of antenna is varied from one meter to four meters above the ground to determine the maximum value of the field strength. Both horizontal and vertical polarizations of the antenna are set to make the measurement. 5. For each suspected emission, the EUT was arranged to its worst case and then the antenna was tuned to heights from 1 meter to 4 meters and the rotatable table was turned from 0 degrees to 360 degrees to find the maximum reading. 6. Use the following test receiver settings According to C63.10: (1) Span shall wide enough to fully capture the emission being measured; (2) Set RBW=100 kHz to 120KHz for f < 1 GHz; VBW≥ RBW; Sweep = auto; Detector function = QP; Trace = max hold; (3) Set RBW = 1 MHz, VBW= 3MHz for f ≥1 GHz for peak measurement. For average measurement: The resolution bandwi…

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