YB2-C228CD PLAYER

User Manual of CD Player C228 Dear users, Thank you for choosing and using HOTT’s CD player. Please read this manual carefully and keep it properly to use the product better. Have a good experience. Safety Precautions Please carefully read and observe the following safety precautions for safe and correct use of the CD player. ※ Do not knock the product violently. ※ Do not keep this product close to any strong magnetic field or electric field. ※ Do not heat the battery or put it into a fire. ※ Do not apply a too high volume, in order to avoid hearing loss. ※ Keep this product away from moisture, rain, sand, heat sources and chemicals (e.g. benzene and diluent). ※ Clean this product with soft wet cloth. Do not clean it with alcohol, benzene solvents and other chemicals. ※ Do not use this product and any headphone while riding a bicycle or motorcycle or driving a car, in order to avoid danger. ※ Do not disassemble, repair or modify this product by yourself. If the CD player is damaged due to authorized operation, the consequences arising therefrom will be borne by users. ※ Please classify and properly dispose of the discarded packages, batteries, used electronic parts, etc. Warning High volume is harmful to hearing Do not use it for a long time, in order to avoid hearing loss. Parts CD player Manual Power cable Audio cable Headphone Specifications Power input USB 5V-1A Disc format CD original disc, MP3 disc, CD-R, CD-RW Music format CD-DA, MP3, WMA Loudspeaker 8Ω/1W*4 Lithium battery 3.7V 1800mAh Charging time About 4h Playback duration 8-10h for headphone/Bluetooth, about 6h for loudspeaker (70% volume) Bluetooth transmission range 10m Dimensions ∮142X31.2mm Startup Procedures ※ Tips: ※ Functional buttons will be unavailable when the HOLD button is set to the HOLD position, and available when the HOLD button is set to the UNHOLD position. ※ In case of no button operation in 30s after this product is turned on, the screen backlight will be automatically OFF. You can press any button to wake up the backlight. ※ Do not apply any disc with serious scratches, fingerprints and dirt on surfaces; otherwise, discs cannot be played, the CD player may fail, or the service life of the laser head may be affected. ① Open the top cover. ② Put in a disc. ③ Set the HOLD button to the UNHOLD position. ⑥ Adjust the volume. ⑤ Connect the headphone. ④ Press and hold it for more than 3s. Button Operations : Power-on/Power-off Press and hold it for more than 3s to power on or off this product. ■: Stop In case of no operation in 30s after this button is pressed, the product will be automatically shut down. : Pause/Play In the playback status, press it once to pause and again to continue playback. : Previous/FR In the playback status, press it once to replay the current song or twice to play the previous song. Press and hold it to enable the FR mode. : Next/FF In the playback status, press it once to play next song. Press and hold it to enable the FF mode. : EQ sound Press it to change as follows: (BASS) → (POP) → (JAZZ) → (ROCK) → (CLASS) → (Reset). : Playback In the playback status, press it to change as follows: 1: single play loop; ALL: play all in loop; RAND: random playback; INTRO: introscan. : Repeat In the playback status, press it once to set the starting point to A and again to set the starting point to B for repetition between A and B. Press it again to exit the repeat mode. (Note: Shockproof by default, 40s for CD, 120s for MP3) ■ Bluetooth Use Before connecting the Bluetooth, please turn on the Bluetooth device to be connected and turn off other devices, in order to avoid interference. Considering differences in Bluetooth protocol compatibility, some Bluetooth devices may not be able to be paired with the CD player. In this case, connect a Bluetooth device with the supplied audio cable, or via the FM transmission mode in a car. Unplug the headphone before connecting a Bluetooth device. This product does not support the simultaneous audio output of the Bluetooth and headphone. Bluetooth and FM transmission modes cannot be used at the same time. 1. Bluetooth sound/headphone connection: 1) In the playback status, press and hold to enable Bluetooth connection. 2) “Pairing” will appear in the screen, indicating Bluetooth search (search time: about 20s). 3) The Bluetooth list will appear after searching. Press / to select a Bluetooth device to be connected. Then, press to connect it. After the Bluetooth device is connected successfully, the product will automatically return to the main interface for music playback. 4) To connect a second Bluetooth device, press to enable the Bluetooth list. Search and connect a Bluetooth device manually, and press / for search. 2. Car Bluetooth connection: 1) In the playback status, press and hold to enable Bluetooth connection. 2) The Bluetooth icon flashes , indicating the Bluetooth search status. 3) Enable the car Bluetooth, and search the Bluetooth name “HOTT-CD” for pairing and connection. A PIN code (000000 by default) is required for some car Bluetooth devices. 4）After the Bluetooth device is connected successfully, the Bluetooth icon will no longer flash. Y:\Department staff\Zhang Yan\5 Product Data\C228\Manual\Picture\FM Schematic Diagram -01. jpg Y:\Department staff\Zhang Yan\5 Product Data\C228\Manual\Picture\FM Schematic Diagram -01. jpg 3. Bluetooth disabling: Press and hold in the Bluetooth connection status “Bluetooth Off” will appear on the screen, indicating that the Bluetooth device is disconnected. Use of FM Transmission Mode The FM transmission mode of the CD player is only applicable to cars with a FM mode. The CD player supports 5 fixed frequencies:F87:5, F88:1, F89:1, F90:5, F95:5; Bother FM transmission and Bluetooth modes cannot be used at the same time. 1. FM transmission connection to car FM receiver: 1) In the playback status, press and hold to enable the FM transmission mode. 2) Press to change the transmission frequency: F87:5, F88:1, F89:1, F9…

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HONGTIANTAI(H.K.)CO.,LIMITED 2.911 (d)(5)(i) Equipment Type Attestation v1.2 Section 2.911(d)(5)(i) Certification – Equipment Type Company name: HONGTIANTAI(H.K.)CO.,LIMITED Address: 2102Pakpolee Commercial Centre 1A Sai Yeung Choi Street South Monqkok Kowloon Hong Kong Sar, HONGKONG, China Product Name: CD PLAYER FCC ID: YB2-C228 Model(s): C228, C226, C301, C302 2.911(d)(5)(i) Equipment Type We, [HONGTIANTAI(H.K.)CO.,LIMITED] certify that the equipment for which authorization is sought through certification is not:  Prohibited from receiving an equipment authorization pursuant to § 2.903; of the FCC rules.  Identified as an equipment type in the “Covered List” NOTE 1 Yours sincerely, Signature: Name: Wenjin Fan Date: 2023-05-19 Title and Company name: General Manager and HONGTIANTAI(H.K.)CO.,LIMITED NOTE 1 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

HONGTIANTAI(H.K.)CO.,LIMITED 2.911 (d)(5)(ii) Applicant Attestation v1.2 Section 2.911(d)(5)(ii) Certification – Applicant (Covered List ) Company name: HONGTIANTAI(H.K.)CO.,LIMITED Address: 2102Pakpolee Commercial Centre 1A Sai Yeung Choi Street South Monqkok Kowloon Hong Kong Sar, HONGKONG, China Product Name: CD PLAYER FCC ID: YB2-C228 Model(s): C228, C226, C301, C302 2.911(d)(5)(ii) Applicant filing We, [HONGTIANTAI(H.K.)CO.,LIMITED] certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the “Covered List” NOTE 2 ,established pursuant to §1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Signature: Name: Wenjin Fan Date: 2023-05-19 Title and Company name: General Manager and HONGTIANTAI(H.K.)CO.,LIMITED NOTE 1 Delete option not applicable to this application. NOTE 2 “Covered List”; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References; 1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the

HONGTIANTAI(H.K.)CO.,LIMITED Section 2.911(d)(7) USA Agent for Service of Process Company name: HONGTIANTAI(H.K.)CO.,LIMITED Address: 2102Pakpolee Commercial Centre 1A Sai Yeung Choi Street South Monqkok Kowloon Hong Kong Sar, HONGKONG, China Product Name: CD PLAYER FCC ID: YB2-C228 Model(s): C228, C226, C301, C302 2.911(d)(7) USA Designated Agent for Service of Process We, [HONGTIANTAI(H.K.)CO.,LIMITED] designate [Baihetian Innovative Solutions] NOTE1 for the purpose of accepting service of process on behalf of the applicant. Applicant consent:We Acknowledge our consent to accept service of process in the United States for matters related to the applicable equipment, and at the physical U.S. address and email address of the designated agent and acknowledge our acceptance of our obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. Agent obligation:We Acknowledge our obligation to accept service of process in the United States for matters related to the applicable equipment at our physical U.S. address and email add ress for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. HONGTIANTAI(H.K.)CO.,LIMITED USA Agent Company name: Baihetian Innovative Solutions Address: 6837 Chase Rd, Dearborn, MI 48126, USA FRN: 0033401605 Contact Name: Kenneth Young Telephone No: 313-395-3113 Email: [email protected] Applicant Company name: HONGTIANTAI(H.K.)CO.,LIMITED Address: 2102Pakpolee Commercial Centre 1A Sai Yeung Choi Street South Monqkok Kowloon Hong Kong Sar, HONGKONG, China FRN: 0019729060 Contact Name: Wenjin Fan Telephone No: 00852-23327066 Email: [email protected] Signature: Title: Manager Signature: Title: General Manager Date: 2023-05-19 Date: 2023-05-19 NOTE 1: An applicant located in the United States may designate itself as the agent for service of process. Reference; Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-nation al-security-threats-to-the-communications-supply-chain-through-the

Differences Declaration To whom concern, We company HONGTIANTAI(H.K.)CO.,LIMITED hereby declares: The product models C228, C226, C301, C302 are identical in the same PCB layout, interior structure and electrical circuits, The differences are the key(C301 is the same as C228, C302 is the same as C226) and model name for commercial purposefor commercial purpose. Authorized signature: Date: 2023-0 5-19

HONGTIANTAI(H.K.)CO.,LIMITED Letter of Authorization Company: HONGTIANTAI(H.K.)CO.,LIMITED Address: 2102Pakpolee Commercial Centre 1A Sai Yeung Choi Street South Monqkok Kowloon Hong Kong Sar, HONGKONG, China Product Type: CD PLAYER Model Number(s): C228, C226, C301, C302 Product Description: CD PLAYER 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: 2023-05-19 Name: Wenjin Fan Title: General Manager Company: HONGTIANTAI(H.K.)CO.,LIMITED

HONGTIANTAI(H.K.)CO.,LIMITED Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2023-05-19 FCC ID: YB2-C228 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 Operational Description 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 pursuantto 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: Wenjin Fan Title: General Manager

Model No.: C228,C301 Model No.: C226, C302

xxx-xxxxxx xxx-xxxxxx

Model No.: C228, C226, C301, C302

FCC ID: YB2-C228 RF Exposure evaluation According to 447498 D04 Interim General RF Exposure Guidance v01 ERP/EIRP = P T +G T −L C ERP/EIRP is the equivalent (or effective) radiated power [in same units as P T , typically dBW, dBm, or power spectral density (psd)], relative to either a dipole antenna (ERP) or an isotropic antenna (EIRP). P T is the transmitter output power, in dBW, dBm, or psd (power over a specified reference bandwidth). G T is the gain of the transmitting antenna, in dBd (ERP) or dBi (EIRP). L C is the signal attenuation in the connecting cable between the transmitter and the antenna, in dB. For BT EDR mode Frequenc y (MHz) Output power to antenna (dBm) Output power to antenna (mw) Ant gain(dBi) EIRP(dB m) ERP(dBm) ERP(mw) Distance (cm) P th (mW) 2402 -0.44 0.90 0 -0.44 -2.59 0.55 0.5 2.8 ERP = EIRP −2.15 dB WORSE CASE 0.90mW<2.8mW Remark: Then SAR evaluation is not required

Antenna Describe 1： Antenna Describe Antenna PCB Antenna Gain 0dBi Frequency Range 2.4Ghz‐2.483Ghz Connector Type Direct Location of mearement(company name) SHENZHENSHIXINZHONGXIN TECHNOLOGY.CO.,LTD 2：External View Drawing Picture of antenna 3：Measurement Result 3.1 Return Loss (S11 ) 3.2 Smith Chart 3.3 Gain

Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 1 of 19 AppendixA: 20dB Emission Bandwidth Test Result Test Mode Antenna Frequency[MHz] 20db EBW[MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 0.951 2401.541 2402.492 --- --- DH5 Ant1 2441 0.951 2440.544 2441.495 --- --- DH5 Ant1 2480 0.948 2479.547 2480.495 --- --- 2DH5 Ant1 2402 1.311 2401.352 2402.663 --- --- 2DH5 Ant1 2441 1.263 2440.397 2441.660 --- --- 2DH5 Ant1 2480 1.290 2479.376 2480.666 --- --- Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 19 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 2DH5-Ant1-2480 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 19 AppendixB: Occupied Channel Bandwidth Test Result Test Mode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict DH5 Ant1 2402 0.86031 2401.5737 2402.4340 --- --- DH5 Ant1 2441 0.87932 2440.5675 2441.4468 --- --- DH5 Ant1 2480 0.87943 2479.5683 2480.4478 --- --- 2DH5 Ant1 2402 1.1903 2401.4125 2402.6028 --- --- 2DH5 Ant1 2441 1.1945 2440.4125 2441.6070 --- --- 2DH5 Ant1 2480 1.1988 2479.4099 2480.6087 --- --- Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 4 of 19 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 2DH5-Ant1-2480 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 5 of 19 AppendixC: Maximum conducted output power Test Result Peak Test Mode Antenna Frequency[MHz] Conducted Peak Powert[dBm] Conducted Limit[dBm] Verdict DH5 Ant1 2402 -1.14 ≤20.97 PASS DH5 Ant1 2441 -2.00 ≤20.97 PASS DH5 Ant1 2480 -2.61 ≤20.97 PASS 2DH5 Ant1 2402 -0.44 ≤20.97 PASS 2DH5 Ant1 2441 -1.35 ≤20.97 PASS 2DH5 Ant1 2480 -1.83 ≤20.97 PASS Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 6 of 19 Test Graphs DH5-Ant1-2402 DH5-Ant1-2441 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2441 2DH5-Ant1-2480 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 7 of 19 AppendixD: Carrier frequency separation Test Result Test Mode Antenna Frequency[MHz] Result[MHz] Limit[MHz] Verdict DH5 Ant1 Hop 0.684 ≥0.634 PASS 2DH5 Ant1 Hop 1.006 ≥0.874 PASS Test Graphs DH5-Ant1-Hop 2DH5-Ant1-Hop Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 8 of 19 AppendixE: Time of occupancy Test Result Test Mode Antenna Frequency[MHz] BurstWidth [ms] TotalHops [Num] Result[s] Limit[s] Verdict DH5 Ant1 Hop 2.879 106.67 0.307 ≤0.4 PASS DH1 Ant1 Hop 0.375 320 0.12 ≤0.4 PASS DH3 Ant1 Hop 1.630 160 0.261 ≤0.4 PASS 2DH5 Ant1 Hop 2.884 106.67 0.308 ≤0.4 PASS 2DH1 Ant1 Hop 0.385 320 0.123 ≤0.4 PASS 2DH3 Ant1 Hop 1.637 160 0.262 ≤0.4 PASS Note: DH5/2DH5/3DH5:TotalHops=1600/79/6*0.4*79 DH5/2DH5/3DH5: Time of occupancy= TotalHops * ( BurstWidth) /1000 DH3/2DH3/3DH3:TotalHops=1600/79/4*0.4*79 DH3/2DH3/3DH3: Time of occupancy= TotalHops * ( BurstWidth) /1000 DH1/2DH1/3DH1:TotalHops=1600/79/2*0.4*79 DH1/2DH1/3DH1: Time of occupancy= TotalHops * ( BurstWidth) /1000 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 9 of 19 Test Graphs DH5-Ant1-Hop DH1-Ant1-Hop DH3-Ant1-Hop 2DH5-Ant1-Hop 2DH1-Ant1-Hop 2DH3-Ant1-Hop Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 10 of 19 AppendixF: Number of hopping channels Test Result Test Mode Antenna Frequency[MHz] Result[Num] Limit[Num] Verdict DH5 Ant1 Hop 79 ≥15 PASS 2DH5 Ant1 Hop 79 ≥15 PASS Test Graphs DH5-Ant1-Hop 2DH5-Ant1-Hop

Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 11 of 19 AppendixG:Band edge measurements Test Result Test Mode Antenna ChName Frequency[MHz] Ref Level [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 Low 2402 -1.87 -44.08 ≤-21.87 PASS DH5 Ant1 High 2480 -3.24 -48.38 ≤-23.24 PASS 2DH5 Ant1 Low 2402 -1.37 -47.61 ≤-21.37 PASS 2DH5 Ant1 High 2480 -3.02 -48.52 ≤-23.02 PASS DH5 Ant1 Low Hop_2402 -2.18 -48.22 ≤-22.18 PASS DH5 Ant1 High Hop_2480 -3.67 -48.16 ≤-23.67 PASS 2DH5 Ant1 Low Hop_2402 -5.77 -47.6 ≤-25.77 PASS 2DH5 Ant1 High Hop_2480 -4.42 -48.25 ≤-24.42 PASS Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 12 of 19 Test Graphs DH5-Ant1-2402 DH5-Ant1-2480 2DH5-Ant1-2402 2DH5-Ant1-2480 DH5-Ant1-Hop_2402 DH5-Ant1-Hop_2480 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 13 of 19 2DH5-Ant1-Hop_2402 2DH5-Ant1-Hop_2480 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 14 of 19 AppendixH:Conducted Spurious Emission Test Result Test Mode Antenna Frequency[MHz] Freq Range [MHz] Ref Level [dBm] Result [dBm] Limit [dBm] Verdict DH5 Ant1 2402 0~Reference -1.92 -1.92 --- PASS DH5 Ant1 2402 30~1000 -1.92 -60.57 ≤-21.92 PASS DH5 Ant1 2402 1000~26500 -1.92 -48.72 ≤-21.92 PASS DH5 Ant1 2441 0~Reference -3.08 -3.08 --- PASS DH5 Ant1 2441 30~1000 -3.08 -59.32 ≤-23.08 PASS DH5 Ant1 2441 1000~26500 -3.08 -48.9 ≤-23.08 PASS DH5 Ant1 2480 0~Reference -3.01 -3.01 --- PASS DH5 Ant1 2480 30~1000 -3.01 -60.42 ≤-23.01 PASS DH5 Ant1 2480 1000~26500 -3.01 -48.79 ≤-23.01 PASS 2DH5 Ant1 2402 0~Reference -5.24 -5.24 --- PASS 2DH5 Ant1 2402 30~1000 -5.24 -60.42 ≤-25.24 PASS 2DH5 Ant1 2402 1000~26500 -5.24 -49.53 ≤-25.24 PASS 2DH5 Ant1 2441 0~Reference -3.84 -3.84 --- PASS 2DH5 Ant1 2441 30~1000 -3.84 -60.07 ≤-23.84 PASS 2DH5 Ant1 2441 1000~26500 -3.84 -49.41 ≤-23.84 PASS 2DH5 Ant1 2480 0~Reference -5.30 -5.30 --- PASS 2DH5 Ant1 2480 30~1000 -5.30 -61 ≤-25.3 PASS 2DH5 Ant1 2480 1000~26500 -5.30 -49.02 ≤-25.3 PASS Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 15 of 19 Test Graphs DH5-Ant1-2402-0~Reference DH5-Ant1-2402-30~1000 DH5-Ant1-2402-1000~26500 DH5-Ant1-2441-0~Reference DH5-Ant1-2441-30~1000 DH5-Ant1-2441-1000~26500 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 16 of 19 DH5-Ant1-2480-0~Reference DH5-Ant1-2480-30~1000 DH5-Ant1-2480-1000~26500 2DH5-Ant1-2402-0~Reference 2DH5-Ant1-2402-30~1000 2DH5-Ant1-2402-1000~26500 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 17 of 19 2DH5-Ant1-2441-0~Reference 2DH5-Ant1-2441-30~1000 2DH5-Ant1-2441-1000~26500 2DH5-Ant1-2480-0~Reference 2DH5-Ant1-2480-30~1000 2DH5-Ant1-2480-1000~26500 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 18 of 19 AppendixI: Duty Cycle Test Result Test Mode Antenna Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] DH5 Ant1 2402 2.88 3.75 76.80 1.15 DH5 Ant1 2441 2.88 3.75 76.80 1.15 DH5 Ant1 2480 2.88 3.75 76.80 1.15 2DH5 Ant1 2402 2.88 3.75 76.80 1.15 2DH5 Ant1 2441 2.88 3.75 76.80 1.15 2DH5 Ant1 2480 2.88 3.75 76.80 1.15 Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 19 of 19 Test Graphs NTNV-DH5-Ant1-2402 NTNV-DH5-Ant1-2441 NTNV-DH5-Ant1-2480 NTNV-2DH5-Ant1-2402 NTNV-2DH5-Ant1-2441 NTNV-2DH5-Ant1-2480 ------End-----

Global United Technology Services Co., Ltd. Report No.: GTS2023040080F01 Authorized Signature: Robinson Luo Laboratory Manager This results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Page 1 of 33 TEST REPORT Applicant: HONGTIANTAI(H.K.)CO.,LIMITED Address of Applicant: 2102Pakpolee Commercial Centre 1A Sai Yeung Choi Street South Monqkok Kowloon Hong Kong Sar, HONGKONG, China Manufacturer/Factory: HONGTIANTAI(H.K.)CO.,LIMITED Address of Manufacturer/Factory: 2102Pakpolee Commercial Centre 1A Sai Yeung Choi Street South Monqkok Kowloon Hong Kong Sar, HONGKONG, China Equipment Under Test (EUT) Product Name: CD PLAYER Model No.: C228, C226, C301, C302 Trade Mark: HOTT FCC ID: YB2-C228 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of sample receipt: April 04, 2023 Date of Test: April 04, 2023-May 19, 2023 Date of report issued: May 19, 2023 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 2 of 33 2 Version Version No. Date Description 00 May 19, 2023 Original Prepared By: Date: May 19, 2023 Project Engineer Check By: Date: May 19, 2023 Reviewer Report No.: GTS2023040080F01 Global United Technology Services Co., Ltd. No. 123- 128, Tower A, Jinyuan Business Building, No.2, Laodong Industrial Zone, Xixiang Road, Baoan District, Shenzhen, Guangdong, China 518102 Telephone: +86 (0) 755 2779 8480 Fax: +86 (0) 755 2779 8960 Page 3 of 33 3 Contents Page 1 COVER PAGE ........................................................................................................................................... 1 2 VERSION .................................................................................................................................................. 2 3 CONTENTS .............................................................................................................................................. 3 4 TEST SUMMARY ..................................................................................................................................... 4 5 GENERAL INFORMATION ...................................................................................................................... 5 5.1 GENERAL DESCRIPTION OF EUT ......................................................................................................... 5 5.2 TEST MODE ........................................................................................................................................ 7 5.3 DESCRIPTION OF SUPPORT UNITS ....................................................................................................... 7 5.4 DEVIATION FROM STANDARDS ............................................................................................................. 7 5.5 ABNORMALITIES FROM STANDARD CONDITIONS ................................................................................... 7 5.6 TEST FACILITY .................................................................................................................................... 7 5.7 TEST LOCATION ......…

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