2AN4C-YHL700AHeadphone

FCC NOTICE (U.S.A.) This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency (RF) Exposure Guidelines. This equipment has very low levels of RF energy that is deemed to comply without testing of specific absorption rate (SAR). IC NOTICE (Canada) This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence- exempt RSS(s). Operation is subject to the following two conditions: 1. This device may not cause interference. 2. This device must accept any interference, including interference that may cause undesired operation of the device. PLEASE READ CAREFULLY BEFORE USE. BE SURE TO FOLLOW THESE INSTRUCTIONS. The precautions listed below are to prevent risk of harm to the user and others, as well as to prevent property damage, and to help the user use this unit properly and safely. Be sure to follow these instructions. After reading this manual, be sure to keep it in a safe place where it can be referenced at any time. • Be sure to request inspections or repairs from the dealer where you purchased the unit or from qualified Yamaha service personnel. • Yamaha cannot be held responsible for injury to you or damage of the products caused by improper use or modifications to the unit. • This product is for ordinary homes. Do not use for applications requiring high reliability, such as managing lives, health care or high-value assets. This content indicates “risk of serious injury or death.” Handling • Do not listen with the earphones or headphones while driving or cycling. Also avoid using them where hearing must not be impaired, like at a railroad crossing and a site of construction. Reduced ability to hear surrounding sound increases the risk of an accident. If you notice any abnormality • If any of the following abnormalities occur, stop using the device immediately. - An unusual smell, unusual sound or smoke is emitted from the unit. - Foreign material or water gets into the interior of the unit. - The unit produces an unusual amount of heat. (Risk of burns or injuries) - There is a crack or damage in the unit. - The unit is dropped. Continued use could cause electric shocks, a fire, or malfunctions. Immediately request an inspection or repair from the dealer where you purchased the unit or from qualified Yamaha service personnel. Charging • Be sure to use the supplied USB power cable. Failure to observe the above may cause a fire, burns, or malfunctions. • To charge the unit, connect it to the USB port of a commercially available USB power adaptor (5 V DC/min. 0.5 A output). Incorrect connection may cause fire, electric shock, or malfunction. For details on charging, refer to this User Guide. • When charging this product, plug the commercially-available USB AC adaptor you will use into a power outlet that is within eyesight, where you are able to reach. This is so that you can easily unplug the cable if need be.Even when switched off, this product will not be completely isolated from the power supply unless you unplug it from the power outlet. • Charges within the specified charging temperature range. Charging at a temperature outside the range may cause leakage, overheating, explosion, or damage. • Do not use the supplied USB power cable for other units. Failure to observe the above may cause a fire, burns, or malfunctions. • Do not cover the unit with blankets, clothing, etc. while being used or charged. It may cause overheating and fire. • Never charge when the unit is wet. Doing so may cause electric shock, fire, or malfunction due to short circuiting. • Do not do anything that could damage the supplied power USB power cable. - Do not place it near a heater. - Do not bend it excessively or alter it. - Do not scratch it. - Do not place it under a heavy object. Using the power cord with the core of the cord exposed could cause electric shocks or a fire. Battery use • Disposal of a battery into fire or a hot oven, or mechanically crushing or cutting of a battery, that can result in an explosion. • Leaving a battery in an extremely high temperature surrounding environment that can result in an explosion or the leakage of flammable liquid or gas. • A battery subjected to extremely low air pressure that may result in an explosion or the leakage of flammable liquid or gas. Do not disassemble • Do not disassemble or modify this unit. Failure to observe this may cause a fire, electric shocks, injury, or malfunctions. Water warning • Do not expose the unit to rain, use it near water or in damp or wet conditions, or place on it any containers (such as vases, bottles or glasses) containing liquids which might spill into any openings or places where water may drop. A liquid such as water getting into the unit may cause a fire, electric shocks, or malfunctions. • Do not handle this unit with wet hands. Failure to observe this may cause electric shocks or malfunctions. Fire warning • Do not place any burning items or open flames near the unit, since they may cause a fire. Handling • Be careful not to drop or apply strong impact to this unit. Failure to observe this may cause electric shocks, a fire, or malfunctions. Wireless unit • Do not use this unit in areas where the use of radio waves is restricted. Radio waves from this unit may affect electro-medical devices. When using this unit in an airplane, follow the instructions of the crew. • Do not use this unit within 15 cm (6 in) of persons with a heart pacemaker implant or a defibrillator implant. Radio waves from this unit may affect electro-medical devices, such as a heart pacemaker implant or defibrillator implant. This content indicates “risk of injury.” Hearing loss • Do not use the unit for a long period of time at a high or uncomfortable volume level. Otherwise, hearing loss may result. Do not exceed 40 hours/week at 80 dB(A) or 5 hours/ week at 89 dB(A). If you experience any problems, con…

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Shenzhen Grandsun Electronic Co., Ltd. Date: 8/31/2020 Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 To whom it may concern: I, the undersigned, hereby authorize UL Verification Services Inc. to act on our behalf in all manners relating to application for equipment authorization, including signing of all documents relating to these matters. Any and all acts carried out by UL Verification Services Inc. on our behalf shall have the same effect as acts of our own. I, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 853(a). In authorizing UL Verification Services Inc. as our representative, we still recognize that we are responsible to: a) comply with the relevant provisions of the certification program; b) make all necessary arrangements for the conduct of the evaluation, including provision for examining documentation and access to all areas, records (including internal audit reports) and personnel for the purposes of evaluation (e.g. testing, inspection, assessment, surveillance, reassessment) and resolution of complaints; c) make claims regarding certification only in respect of the scope for which certification has been granted; d) do not use our product certification in such a manner as to bring the Certification Division into disrepute and not make any statement regarding our product certification which the Certification Division may consider misleading or unauthorized; e) upon suspension or cancellation of certification, discontinue use of all advertising matter that contains any reference thereto and return any certification documents as required by the Certification Division; f) use certification only to indicate the products are certified as being in conformity with specified standards; g) endeavor to ensure that no certificate or report nor any part thereof is used in a misleading manner; h) ensure that any reference to our product certification in communication media such as documents, brochures or advertising, complies with the requirements of the Certification Division; i) keep a record of all complaints made known to us relating to the product’s compliance with requirements of the relevant standard and to make these records available to the when requested; j) take appropriate action with respect to such complaints and any deficiencies found in products or services that affect compliance with the requirements for certification; k) document the actions taken. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signed by: Company Name: Shenzhen Grandsun Electronic Co., Ltd. Contact Name: Felix Lee Title of Person: Certification Engineer Address: Pingdi Gaoqiao Industry Zone, Longgang District, Shenzhen, China

Shenzhen Grandsun Electronic Co., Ltd. Federal Communications Commission 7435 Oakland Mills Road Columbia MD 21046 Subject: Request for Confidentiality FCC ID: 2AN4C-YHL700A To Whom It May Concern: Pursuant to the provisions of Sections 0.457 and 0.459 of the Commission’s rules (47 CFR §§ 0.457, 0.459), we are requesting the Commission to withhold the following attachments as confidential document from public disclosure indefinitely. Schematic Diagram Block Diagram Theory of Operation Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Best Regards Company Name: Shenzhen Grandsun Electronic Co., Ltd. Contact Name: Felix Lee Title of Person: Certification Engineer Address: Pingdi Gaoqiao Industry Zone, Longgang District, Shenzhen, China Date: 8/31/2020

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Lithium ion / 3.7V Rating :5Vdc,0.5A max input MADE IN CHINA 10-1 Nakazawa-cho,Naka-ku,Hamamatsu430-8650,Japan YH-L700A SER.NO. *****-**-*****

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FCC ID: 2AN4C-YHL700A According to KDB 447498 D01 General RF Exposure Guidance v06, section 4.3.1 At 100 MHz to 6 GHz and for test separation distances ≤ 50mm, the SAR test exclusion threshold is determined according to the following [(max. power of channel, including tune-up tolerance, ㎽) / (min. test separation distance, ㎜)] x [√f(㎓)] ≤ 3.0 1. SAR test exclusion threshold Frequency: 2 480 MHz (min. separation distances = 5 mm) SAR test exclusion thresholds (5 ㎜) = 3 x 5 / (√ 2.480) = 9.525 ㎽ Test mode Max. Tune-up Tolerance (mW) SAR Test Exclusion Thresholds (5mm) (mW) GFSK 1.585 9.525 Calculation value: 2.00 (㎽) / 5 (㎜) x √ 2.480 = 0.630 So, Calculation value ≤ 3.0 Remark: -For Max. conducted power is 1.585 (㎽), so 2.00 (㎽) was calculated. -When the minimum test separation distance is < 5 ㎜, a distance of 5 ㎜ is applied to determine SAR test exclusion. 2. Conclusion: No SAR is required.

The results reported herein have been performed in accordance with the laboratory’s terms of accreditation. This report shall not be reproduced except in full without the written approval of the Laboratory. The results in this report apply to the test sample(s) mentioned above at the time of the testing period only and are not to be used to indicate applicability to other similar products. This report does not imply that the product(s) has met the criteria for certification. CFR 47 FCC PART 15 SUBPART C ISED RSS-247 ISSUE 2 CERTIFICATION TEST REPORT For Headphone MODEL NUMBER: YH-L700A FCC ID: 2AN4C-YHL700A IC: 10276A-YHL700A REPORT NUMBER: 4789527609-3 ISSUE DATE: July 07, 2020 Prepared for Shenzhen Grandsun Electronics Co.,Ltd. Gaoqiao Industry Zone,Pingdi Town,Longgang District,Shenzhen,China Prepared by UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch Building 10, Innovation Technology Park, No. 1, Li Bin Road, Song Shan Lake Hi- Tech Development Zone Dongguan, 523808, People’s Republic of China Tel: +86 769 22038881 Fax: +86 769 33244054 Website: www.ul.com REPORT NO.: 4789527609-3 Page 2 of 100 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0087 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Revision History Rev. Issue Date Revisions Revised By V0 07/07/2020 Initial Issue REPORT NO.: 4789527609-3 Page 3 of 100 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0087 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. Summary of Test Results Clause Test Items FCC/ISED Rules Test Results 1 6dB Bandwidth and 99% Occupied Bandwidth FCC Part 15.247 (a) (2) RSS-247 Clause 5.2 (a) ISED RSS-Gen Clause 6.7 Pass 2 Peak Conducted Output Power FCC Part 15.247 (b) (3) RSS-247 Clause 5.4 (d) Pass 3 Power Spectral Density FCC Part 15.247 (e) RSS-247 Clause 5.2 (b) Pass 4 Conducted Bandedge and Spurious Emission FCC Part 15.247 (d) RSS-247 Clause 5.5 Pass 5 Radiated Bandedge and Spurious Emission FCC Part 15.247 (d) FCC Part 15.209 FCC Part 15.205 RSS-247 Clause 5.5 RSS-GEN Clause 8.9 Pass 6 Conducted Emission Test for AC Power Port FCC Part 15.207 RSS-GEN Clause 8.8 Pass 7 Antenna Requirement FCC Part 15.203 RSS-GEN Clause 6.8 Pass Note: 1.This test report is only published to and used by the applicant, and it is not for evidence purpose in China. 2. The measurement result for the sample received is <Pass> according to < CFR 47 FCC PART 15 SUBPART C >< ISED RSS-247 > when <Accuracy Method> decision rule is applied. REPORT NO.: 4789527609-3 Page 4 of 100 UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch FORM No.: 10-SL-F0087 This report shall not be reproduced except in full, without the written approval of UL Verification Services (Guangzhou) Co., Ltd, Song Shan Lake Branch. TABLE OF CONTENTS 1. ATTESTATION OF TEST RESULTS .................................................................................... 6 2. TEST METHODOLOGY ........................................................................................................ 7 3. FACILITIES AND ACCREDITATION .................................................................................... 7 4. CALIBRATION AND UNCERTAINTY .................................................................................. 8 4.1. MEASURING INSTRUMENT CALIBRATION ................................................................ 8 4.2. MEASUREMENT UNCERTAINTY ................................................................................. 8 5. EQUIPMENT UNDER TEST ................................................................................................. 9 5.1. DESCRIPTION OF EUT ................................................................................................. 9 5.2. CHANNEL LIST .............................................................................................................. 9 5.3. MAXIMUM PEAK OUTPUT POWER ............................................................................. 9 5.4. TEST CHANNEL CONFIGURATION ........................................................................... 10 5.5. THE WORSE CASE POWER SETTING PARAMETER ............................................... 10 5.6. DESCRIPTION OF AVAILABLE ANTENNAS .............................................................. 10 5.7. DESCRIPTION OF TEST SETUP ................................................................................ 11 6. MEASURING INSTRUMENT AND SOFTWARE USED ..................................................... 12 7. ANTENNA PORT TEST RESULTS .................................................................................... 14 7.1. ON TIME AND DUTY CYCLE ...................................................................................... 14 7.2. 6 dB DTS BANDWIDTH AND 99% OCCUPIED BANDWIDTH .................................... 15 7.3. CONDUCTED OUTPUT POWER ................................................................................ 17 7.4. POWER SPECTRAL DENSITY ................................................................................... 18 7.5. CONDUCTED BANDEDGE AND SPURIOUS EMISSIONS ........................................ 20 8. RADIATED TEST RESULTS .............................................................................................. 22 8.1. RESTRICTED BANDEDGE ......................................................................................... 28 8.1.1. LE MODE .............................................................................................................. 28 8.1.2. LE 2M MODE ........................................................................................................ 32 8.2. SPURIOUS EMISSIONS (1GHz ~ 3GHz) .......................................................…

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Appendix II Setup Photographs RADIATED RF MEASUREMENT SETUP (ABOVE 1 GHz) MEASUREMENT POSITION (X axis) MEASUREMENT POSITION (Y axis) MEASUREMENT POSITION (Z axis) RADIATED RF MEASUREMENT SETUP (30MHz~1GHz) RADIATED RF MEASUREMENT SETUP (Below 30MHz) POWERLINE CONDUCTED EMISSIONS MEASUREMENT SETUP