FCC ID: 2AVYG-SUGAR20 Wireless Earphone

TWS 1 2 1 2 3 coonected 4 , 3 5 4

/ 2 2 1 1 2 1 2 2 1 252 10 3 power on power o power o Dudu Dudu battery low pairing connected disconnected 3 5-35%35-70%70-100%

24 8 5%4 32 1 2 3 4 5-15C50C 60C 7 8 TRUE WIRELESS EARPHONE Attention Please remove the sticker on the back cover of the earphones for a better visual experience. I I C case T C Ear Cap Take out the earphones from the charging case, the two earphones flash blue lights quickly. Turn on the bluethooth and find the corresponding Bluetooth name, then click to connect Take out the earphones from the charging case, the earphones will turn on automatically. Turn off the Bluetooth of mobile phone, the earphone will automatically shut in five minutes. Put your finger on the touch area for 4 seconds, the earphones will be shut. and hold Put the earphones into the charging case and the earphone will display a red light while charging. Pls use the usb-c cable to get charged which is packed in the color box. 1) Delete the bluetooth name which you got connected before from your phone. 2) Touch the left and right earphones for 5 times respectively; You will see red and blue light flash for 2 seconds at the same time. The earphones will turn on. The earphone will turn on and be waiting for pairing meanwhile. Within 10 minutes, it will finish connecting and the earphones will flash blue light. 3) Reconnect the bluetooth with your phone. Apple Iphones and some Android phones support volume control, but for some Android phones, you can only adjust the volume of the earphone. ( When you adjust the volume of the earphones, you are also adjusting the volume of your phone.) Do not touch the touch area while holding the earphones. The earphones are paired with each other Successfully paired with the phone When put the earphones into the charging box, the indicate light will be on correspondingly. Charging finishing Green light will turn off after 8 seconds. While 5% battery, the red light will flash quickly for 4 seconds and then light off. B Try to listen at low volume. Listening at high volume for an extended period may result in permanent damage to your hearing. Keep your earphones and accessories out of reach of children. Children should use the earphones under the supervision of adult. To avoid damaging to your earphones, do not disassemble or tamper with them, and do not insert any foreign matter into them. 112.24 FCC Requirement Any changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and

(2) this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is measures:

connected. Consult the dealer or an experienced radio/TV technician for help.

Baftery:300mAh_Input:5V=300mA RoHS Made in China Model: SUGAR 20 =__ E CID: 2AVYG-SUGAR20

! TRUE WIRELESS EARPHONE |

I Battery:300mAh_ Input:5V=300mA RoHS Made in China Model: SUGAR 20 m/-

! FCC ID: 2AVYG-SUGAR20 |

22ENAZ/Silkscreen content: 2HMSE RYAJvDimension: 38x4mm BRE/Colour: jeKLight Grey

Yibai Science & Technology (Shenzhen) Co., Ltd. Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AVYG-

SUGAR20 Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Exhibit Type File Name 1. Block Diagram, 1. 2ZAVYG-SUGAR20 -Block diagram 2. Schematics, 2. 2ZAVYG-SUGAR20-SCH 3. Operational Description 3. 2ZAVYG-SUGAR20-Operational description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for an initial period of xxxx (ie- 45, 90 or 180) days:

Exhibit Type File Name N/A N/A Signature: Keyw que Contact name: Keyu Guo Company name: Yibai Science & Technology (Shenzhen) Co., Ltd. Address: No. 1112, Building 5A, Tusincere Technology Park. Huanggekeng Community Longcheng Street, Longgang District.Shenzhen, China Date: 04/17/2018 VCB F-01: Operating Procedures Form FCC Confidentiality v02 Page 7 of 1

Yibai Science & Technology (Shenzhen) Co., Ltd. Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2022-1-5 SUBJECT: FCC Application for (FCC ID: 2AVYG-SUGAR20 ) To Whom It May Concern:

We, the undersigned, hereby authorize Yoyo Zhou_ in Shenzhen Huaxia Testing Technology Co.,Ltd at 1F., Block A of Tongsheng Technology Building, Huahui Road, Dalang Street, Longhua District, Shenzhen, China on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen Huaxia Testing Technology Co., Ltd on our behalf shall have the same effect as acts of our own. |

This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely,

(Must be signed by the person that is listed on the FCC Website) Signature: eyu quo Contact name: Keyu Guo Company name: Yibai Science & Technology (Shenzhen) Co., Ltd. Address: No. 1112, Building 5A, Tusincere Technology Park.Huanggekeng Community Longcheng Street, Longgang District.Shenzhen, China Date: 04/17/2018 VCB_F-01: Operating Procedures Form FCC Authorization v02 Page 1 of 1