2AXUXWIHPANCPREM ANC HEADPHONES

Front Back 600*260mm 90g Designed in London by Magnum Brands Group Ltd. Ruislip, HA4 0EJ, UK © www.magnumbrands.com Magnum Brands Group Ltd, Herbert House, 18-22 Pembroke Rd, Dublin 4 © www.magnumbrands.com E&OE images and illustrations may differ from actual product.

MAGNUM BRANDS LTD Agent Authorization Company: MAGNUM BRANDS LTD Address: Unit L, Braintree Industrial Estate, Braintree Road HA4 0EJ, Ruislip LONDON United Kingdom Product Name: PREM ANC HEADPHONES Model Number(s): WIHPANCBK-PRM (7474501) Product Description: PREM ANC HEADPHONES 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: 2021-01-13 Name: Fiona Li Company: MAGNUM BRANDS LTD

MAGNUM BRANDS LTD Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020-10-28 Subject; Request for Confidentiality FCC ID: 2AXUXWIHPANC 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 MAGNUM BRANDS LTD Contact person: Fiona Li

External Photos ALL VIEW-1 OF EUT EXTERNAL VIEW-1 OF EUT EXTERNAL VIEW-2 OF EUT EXTERNAL VIEW-3 OF EUT EXTERNAL VIEW-4 OF EUT EXTERNAL VIEW-5 OF EUT EXTERNAL VIEW-6 OF EUT EXTERNAL VIEW-7 OF EUT

FCC ID Label Location FCC ID: 2AXUXWIHPANC

Internal Photos INTERNAL VIEW-1 OF EUT INTERNAL VIEW-2 OF EUT INTERNAL VIEW-3 OF EUT INTERNAL VIEW-4 OF EUT Antenna INTERNAL VIEW-5 OF EUT

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description PREM ANC HEADPHONES Model Name WIHPANCBK-PRM (7474501) FCC ID 2AXUXWIHPANC 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 = 3.469dBm=2.22mW 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=(2.22mW /5mm) .[√2.480GHz)]=0.70<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 63 FCC Test Report Report No.: AGC01147201006FE03 FCC ID : 2AXUXWIHPANC APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : PREM ANC HEADPHONES BRAND NAME : MAGNUM BRANDS MODEL NAME : WIHPANCBK-PRM (7474501) APPLICANT : MAGNUM BRANDS LTD DATE OF ISSUE : Jan. 08, 2021 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd Report No.: AGC01147201006FE03 Page 2 of 63 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / Jan. 08, 2021 Valid Initial Release Report No.: AGC01147201006FE03 Page 3 of 63 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 2.10. ANTENNA REQUIREMENT .................................................................................................................. 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 ........................................................................................................... 18 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 18 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................. 19 9. CONDUCTED SPURIOUS EMISSION ........................................................................................................ 23 9.1. MEASUREMENT PROCEDURE ........................................................................................................... 23 Report No.: AGC01147201006FE03 Page 4 of 63 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 23 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 23 9.4. LIMITS AND MEASUREMENT RESULT ............................................................................................... 23 10. RADIATED EMISSION ............................................................................................................................... 34 10.1. MEASUREMENT PROCEDURE ......................................................................................................... 34 10.2. TEST SETUP ....................................................................................................................................... 36 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................. 37 10.4. TEST RESULT ..................................................................................................................................... 37 11. NUMBER OF HOPPING FREQUENCY ..................................................................................................... 47 11.1. MEASUREMENT PROCEDURE ......…

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Report No.: AGC01147201006FE03 Page 48 of 63 12. TIME OF OCCUPANCY (DWELL TIME) 12.1. MEASUREMENT PROCEDURE The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: 1. Span: Zero span, centered on a hopping channel. 2. RBW shall be≤channel spacing and where possible RBW should be set >> 1 / T, where T is the expected dwell time per channel. 3. Sweep: As necessary to capture the entire dwell time per hopping channel; where possible use a video trigger and trigger delay so that the transmitted signal starts a little to the right of the start of the plot. The trigger level might need slight adjustment to prevent triggering when the system hops on an adjacent channel; a second plot might be needed with a longer sweep time to show two successive hops on a channel. 4. Detector function: Peak. Trace: Max hold. 5. Use the marker-delta function to determine the transmit time per hop. 6. Repeat the measurement using a longer sweep time to determine the number of hops over the period specified in the requirements. The sweep time shall be equal to, or less than, the period specified in the requirements. Determine the number of hops over the sweep time and calculate the total number of hops in the period specified in the requirements, using the following equation: (Number of hops in the period specified in the requirements) = (number of hops on spectrum analyzer) × (period specified in the requirements / analyzer sweep time) 7. The average time of occupancy is calculated from the transmit time per hop multiplied by the number of hops in the period specified in the requirements. 12.2. TEST SETUP (BLOCK DIAGRAM OF CONFIGURATION) Same as described in section 8.2 12.3. MEASUREMENT EQUIPMENT USED The same as described in section 6 12.4. LIMITS AND MEASUREMENT RESULT Channel Time of Pulse for DH5 (ms) Number of hops in the period specified in the requirements Sweep Time (ms) Limit (ms) Low 2.918 28*4 326.816 400 Middle 2.926 27*4 316.008 400 High 2.916 30*4 349.920 400 Note: The π /4-DQPSK modulation is the worst case and recorded in the report. Report No.: AGC01147201006FE03 Page 49 of 63 TEST PLOT OF LOW CHANNEL Report No.: AGC01147201006FE03 Page 50 of 63 TEST PLOT OF MIDDLE CHANNEL Report No.: AGC01147201006FE03 Page 51 of 63 TEST PLOT OF HIGH CHANNEL Report No.: AGC01147201006FE03 Page 52 of 63 13. FREQUENCY SEPARATION 13.1. MEASUREMENT PROCEDURE The EUT shall have its hopping function enabled. Use the following spectrum analyzer settings: 1. Span: Wide enough to capture the peaks of two adjacent channels. 2. RBW: Start with the RBW set to approximately 30% of the channel spacing; adjust as necessary to best identify the center of each individual channel. 3. Video (or average) bandwidth (VBW) ≥ RBW. 4. Sweep: Auto. e) Detector function: Peak. f) Trace: Max hold. g) Allow the trace to stabilize. Use the marker-delta function to determine the separation between the peaks of the adjacent channels. 13.2. TEST SETUP (BLOCK DIAGRAM OF CONFIGURATION) Same as described in section 6.2 13.3. MEASUREMENT EQUIPMENT USED The same as described in section 6.3 13.4. LIMITS AND MEASUREMENT RESULT CHANNEL CHANNEL SEPARATION LIMIT RESULT MHz Pass CH38-CH39 1.001 >= 2/3 20 dB BW TEST PLOT FOR FREQUENCY SEPARATION Note: The GFSK modulation is the worst case and recorded in the report. Report No.: AGC01147201006FE03 Page 53 of 63 14. FCC LINE CONDUCTED EMISSION TEST 14.1. LIMITS OF LINE CONDUCTED EMISSION TEST Frequency Maximum RF Line Voltage Q.P. (dBμV) Average (dBμV) 150kHz~500kHz 66-56 56-46 500kHz~5MHz 56 46 5MHz~30MHz 60 50 Note: 1. The lower limit shall apply at the transition frequency. 2. The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz. 14.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST EUT & Support Units Report No.: AGC01147201006FE03 Page 54 of 63 14.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST 1. The equipment was set up as per the test configuration to simulate typical actual usage per the user’s manual. When the EUT is a tabletop system, a wooden table with a height of 0.8 meters is used and is placed on the ground plane as per ANSI C63.10 (see Test Facility for the dimensions of the ground plane used). When the EUT is a floor-standing equipment, it is placed on the ground plane which has a 3-12 mm non-conductive covering to insulate the EUT from the ground plane. 2. Support equipment, if needed, was placed as per ANSI C63.10. 3. All I/O cables were positioned to simulate typical actual usage as per ANSI C63.10. 4. All support equipment received AC120V/60Hz power from a LISN, if any. 5. The EUT received DC 5V power from adapter which received AC120V/60Hz power from a LISN. 6. The test program was started. Emissions were measured on each current carrying line of the EUT using a spectrum Analyzer / Receiver connected to the LISN powering the EUT. The LISN has two monitoring points: Line 1 (Hot Side) and Line 2 (Neutral Side). Two scans were taken: one with Line 1 connected to Analyzer / Receiver and Line 2 connected to a 50 ohm load; the second scan had Line 1 connected to a 50 ohm load and Line 2 connected to the Analyzer / Receiver. 7. Analyzer / Receiver scanned from 150 kHz to 30MHz for emissions in each of the test modes. 8. During the above scans, the emissions were maximized by cable manipulation. 9. The test mode(s) were scanned during the preliminary test. Then, the EUT configuration and cable configuration of the above highest emission level were recorded for reference of final testing. 14.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST 1. EUT and support equipment was set up on the test bench as per step 2 of the preliminary test. 2. A scan was taken on both power lines, Line 1 and Line 2, recording at least the six highest emissions. Emission frequency and amplitude were recorded into a computer in which correction factors were used to calculate the emission level and compare reading to the appl…

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