2AKMBYHE500AHeadphones

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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Kingstate Electronics (Dongguan) Co., Ltd Agent Authorization Company: Kingstate Electronics (Dongguan) Co., Ltd Address: Shi Chong Industrial Park, Shi Chong Avenue, Xiang Xi Village, Shi Pai Town, Dong Guan City, Guang Dong Province, China. Product Name: Headphones Model Number(s): YH-E500A Product Description: Headphones with Bluetooth function 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: 2020/06/28 Name: Jason Guo Title: Engineer Company: Kingstate Electronics (Dongguan) Co., Ltd

Kingstate Electronics (Dongguan) Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2020/06/28 Subject; Request for Confidentiality FCC ID: 2AKMBYHE500A 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, Signature: Name: Jason Guo Title: Engineer

Page 75 of 86 16. Photos of The EUT Model No.: YH-E500A Page 76 of 86 Page 77 of 86 Page 78 of 86

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Page 79 of 86 Model No.: YH-E500A Page 80 of 86 BT Antenna Page 81 of 86 Page 82 of 86 Page 83 of 86 Page 84 of 86 Page 85 of 86 Page 86 of 86 END OF REPORT

Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R20011706-3E14 Page 1 of 5 RF EXPOSURE REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : Kingstate Electronics (Dongguan) Co., Ltd Address : Shi Chong Industrial Park, Shi Chong Avenue, Xiang Xi Village, Shi Pai Town, Dong Guan City, Guang Dong Province, China. Equipment under Test : Headphones Model No. : YH-E500A Trade Mark : YAMAHA FCC ID : 2AKMBYHE500A Manufacturer : Kingstate Electronics (Dongguan) Co., Ltd Address : Shi Chong Industrial Park, Shi Chong Avenue, Xiang Xi Village, Shi Pai Town, Dong Guan City, Guang Dong Province, China. ■Report No.: DDT-R20011706-3E14 ■Issued Date: May 14, 2020 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R20011706-3E14 Page 2 of 5 TABLE OF CONTENTS Test report declares.......................................................................................................3 1. General information ........................................................................................................ 5 1.1. Description of Equipment ............................................................................................... 5 1.2. Assess laboratory ........................................................................................................... 5 2. RF Exposure evaluation for FCC ................................................................................... 5 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R20011706-3E14 Page 3 of 5 TEST REPORT DECLARE Standard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is assessed by Dongguan Dongdian Testing Service Co., Ltd and in the configuration assessed the equipment complied with the standards specified above. The assessed results are contained in this report and Dongguan Dongdian Testing Service Co., Ltd is assumed of full responsibility for the accuracy and completeness of these assess. After evaluation, our opinion is that the equipment In Accordance with above standard. Report No: DDT-R20011706-3E14 Date of Receipt: Mar. 12, 2020 Date of Test: Mar. 12, 2020 ~ May 13, 2020 Prepared By: Approved By: _______________ _____________________ Talent Zhang/Engineer Damon Hu/EMC Manager Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Dongguan Dongdian Testing Service Co., Ltd. Applicant : Kingstate Electronics (Dongguan) Co., Ltd Address : Shi Chong Industrial Park, Shi Chong Avenue, Xiang Xi Village, Shi Pai Town, Dong Guan City, Guang Dong Province, China. Equipment under Test : Headphones Model No. : YH-E500A Trade mark : YAMAHA Manufacturer : Kingstate Electronics (Dongguan) Co., Ltd Address : Shi Chong Industrial Park, Shi Chong Avenue, Xiang Xi Village, Shi Pai Town, Dong Guan City, Guang Dong Province, China. Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R20011706-3E14 Page 4 of 5 Revision history Rev. Revisions Issue Date Revised By --- Initial issue May. 14, 2020 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R20011706-3E14 Page 5 of 5 1. General information 1.1. Description of Equipment 1.2. Assess laboratory Dongguan Dongdian Testing Service Co., Ltd. Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel: +86-0769-38826678, http://www.dgddt.com, Email: [email protected] 2. RF Exposure evaluation for FCC According to 447498 D01 General RF Exposure Guidance v06 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 Estimation Result Worse case is as below: [2402MHz, 6.88 dBm, 4.88 mW) output power] (4.88/5)·[√2.402(GHz)] =1.513<3.0 for 1-g SAR Then SAR evaluation is not required END OF REPORT EUT* Name : Headphones Model Number : YH-E500A EUT function description : Please reference user manual of this device Power supply : DC 5 V/0.5A from Charging case DC 3.7 V Polymer Li-ion built-in battery Radio Specification : Bluetooth V5.0 Operation frequency : 2402MHz-2480MHz Modulation : GFSK, /4-DQPSK, 8DPSK Data rate : 1 Mbps, 2 Mbps, 3 Mbps Antenna Type : Broad antenna, maximum PK gain: 2.45 dBi Sample Type : Series production

Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R20011706-3E4 Page 1 of 72 FCC ID AND ISED CERTIFICATION TEST REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add.: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel.: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : Kingstate Electronics (Dongguan) Co., Ltd Address : Shi Chong Industrial Park, Shi Chong Avenue, Xiang Xi Village, Shi Pai Town, Dong Guan City, Guang Dong Province, China. Equipment under Test : Headphones Model No. : YH-E500A Trade Mark : YAMAHA FCC ID : 2AKMBYHE500A IC : 12522A-YHE500A Manufacturer : Kingstate Electronics (Dongguan) Co., Ltd Address : Shi Chong Industrial Park, Shi Chong Avenue, Xiang Xi Village, Shi Pai Town, Dong Guan City, Guang Dong Province, China. ■Report No.: DDT-R20011706-3E4 ■Issued Date: May 14, 2020 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R20011706-3E4 Page 2 of 72 Table of Contents Test report declares.......................................................................................................4 1. Summary of Test Results ............................................................................................... 6 2. General Test Information ............................................................................................... 7 2.1. Description of EUT ......................................................................................................... 7 2.2. Accessories of EUT ........................................................................................................ 8 2.3. Assistant equipment used for test .................................................................................. 8 2.4. Block diagram of EUT configuration for test .................................................................. 8 2.5. Deviations of test standard............................................................................................. 8 2.6. Test environment conditions .......................................................................................... 8 2.7. Test laboratory ............................................................................................................... 9 2.8. Measurement uncertainty ............................................................................................... 9 3. Equipment Used During Test ....................................................................................... 10 4. Maximum Peak Output Power ..................................................................................... 12 4.1. Block diagram of test setup .......................................................................................... 12 4.2. Limits ............................................................................................................................ 12 4.3. Test procedure ............................................................................................................. 12 4.4. Test result ..................................................................................................................... 12 4.5. Original test data .......................................................................................................... 13 5. 20dB Bandwidth and 99% Bandwidth .......................................................................... 16 5.1. Block diagram of test setup .......................................................................................... 16 5.2. Limits ............................................................................................................................ 16 5.3. Test procedure ............................................................................................................. 16 5.4. Test result ..................................................................................................................... 16 5.5. Original test data .......................................................................................................... 17 6. Carrier Frequency Separation ...................................................................................... 20 6.1. Block diagram of test setup .......................................................................................... 20 6.2. Limits ............................................................................................................................ 20 6.3. Test procedure ............................................................................................................. 20 6.4. Test result ..................................................................................................................... 20 6.5. Original test data .......................................................................................................... 20 7. Number of Hopping Channel ....................................................................................... 22 7.1. Block diagram of test setup .......................................................................................... 22 7.2. Limits ............................................................................................................................ 22 7.3. Test procedure ............................................................................................................. 22 7.4. Test result ..................................................................................................................... 22 7.5. Original test data .......................................................................................................... 22 8. Dwell Time .................................................................................................................... 24 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R20011706-3E4 Page 3 of 72 8.1. Block diagram of test setup .......................................…

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R20011706-3E4 Page 73 of 85 15. Test Setup Photograph Model No.: YH-E500A Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R20011706-3E4 Page 74 of 85