FCC ID: 2AVJ8-CB4620 CONTROL BOX

Issue departmentBedding Division Product Function instruction CB.46 Date Author 2017-08-23 Kyle NoCB4620 Version 1.1 Page 1 of 3 CB4620 Function instruction 1. Function Picture 1. Process of test 1.1. HEAD Connect to head actuator,control by remote single:

Click head up button on the remote, head actuator moves out, stop when released Click head down buttonhead actuator moves in, stop when released This function takes effect only by pressing the corresponding button on the remote. 1.2. FOOT Connect to foot actuator,control by remote single:

Click foot up buttonfoot actuator moves outstop when released Click foot down buttonfoot actuator moves instop when released This function takes effect only by pressing the corresponding button on the remote. 1.3. Power LED & PAIRING LED Power supply for control box, PAIRING LED of control box is blue, POWER LED is green 1.4. Power Connect to the 29V DC;

1 Issue departmentBedding Division Product Function instruction CB.46 Date Author 2017-08-23 Kyle NoCB4620 Version 1.1 Page 2 of 3 FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this de vice may not cause harmful interference, and (2) this device must accept any interference received, including in terference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the users aut hority to operate the equipment. 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 insta lled and used in accordance with the instructions, may cause harmful interference to radio communications. Howe ver, 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 measures:

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

Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. ISED Statement

English: This device complies with Industry Canada licenseexempt RSS standard(s). Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) This d evice must accept any interference, including interference that may cause undesired operation of the device. The digital apparatus complies with Canadian CAN ICES3 (B)/NMB3(B). 2 Issue departmentBedding Division Product Function instruction CB.46 Date Author 2017-08-23 Kyle NoCB4620 Version 1.1 Page 3 of 3 French: Le prsentappareilestconforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitationestautorise aux deux conditions suivantes: (1) l'appareil ne doit pas produ ire de brouillage, et (2) l'utilisateur de l'appareildoit accepter tout brouillageradiolectriquesubi, mmesi le brouill ageest susceptible d'encompromettre le fonctionnement. This radio transmitter (ISED certification number: 25804-CB4620) has been approved by Industry Canada to operate with the antenna types listed with the maximum permissible gain indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device. Le prsent metteur radio (ISED certification number: 25804-CB4620) a t approuv par Industrie Canada pour fonctionner avec les types d'antenne numrs ci-dessous et ayant un gain admissible maximal. Les types d'antenne non inclus dans cette liste, et dont le gain est suprieur au gain maximal indiqu, sont strictement interdits pour l'exploitation de l'metteur. Radiation Exposure Statement This equipment complies with Canada radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. Dclaration d'exposition aux radiations Cet quipement est conforme Canada limites d'exposition aux radiations dans un environnement non contrl. Cet quipement doit tre install et utilis distance minimum de 20cm entre le radiateur et votre corps. 3

CB.46.20.01 CONTROL BOX CB4620 Prod Date:03/19 SW:V1 \44 FCC ID:2AVJ8-CB4620 Indoor use only 1C:25804-CB4620 a bewertokin Technology Brand For Patents contact www.dewertokin.com/patents ke A

C5266091_X24_Ed.2 Attestation Statements TO:

Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 The Commission adopted rules for covered telecommunications equipment and video surveillance equipment produced by entities identified on the Commissions Covered List1, which is periodically updated. See the Covered List for more details. This Attestation Statement is to confirm that we follow the Section 2.911(d)(5)(i)-(ii) that prohibit equipment authorization Applicant Company name: DewertOkin Technology Group Co., Ltd. Grantee code: 2AVJ8 FCC ID:

Contact Name:

Address:

Kanghe Road, Xiuzhou District, Jiaxing City, Zhejiang Province 314016 China Telephone No:

Fax No:

Email: Mia.Ye@refinedchina.com

+86-573-82281072

+86-0573-82280968 2AVJ8-CB4620 Mia Ye Room 247, Floor 6, Jiaxing Photovoltaic Science and Innovation Park, 1288 i. ii. DewertOkin Technology Group Co., Ltd. (the applicant) certifies that the equipment for which authorization is sought is not covered equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. The applicant must sign this certification. DewertOkin Technology Group Co., Ltd. (the applicant) certifies that, as of the date of the filing of the application, the applicant is not (as a specifically named entity or any of its subsidiaries or affiliates) identified on the Covered List as an entity producing covered equipment. The applicant must sign this certification. DewertOkin Technology Group Co., Ltd. (the applicant) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing covered equipment . Date: 2023/08/11 Applicants Name: Mia Ye Title: Manager Signature 1 The Commissions Covered List is published by the Public Safety and Homeland Security Bureau and posted on the Commissions website. This Covered List, which is periodically updated, identifies particular equipment, produced by particular entities, that constitutes covered equipment. https://www.fcc.gov/supplychain/coveredlist 1/1

DewertOkin Technology Group Co., Ltd. FCC Class II Permissive Change Request Letter Date: Aug.-12-2023 To FCC:

RE: FCC Permissive II Change Request for Company: DewertOkin Technology Group Co., Ltd. FCC ID: 2AVJ8-CB4620 We are submitting an application for a class II permissive change to the FCC approval of the Company name:

DewertOkin Technology Group Co., Ltd., product description: CONTROL BOX (FCC: 2AVJ8-CB4620, Original Grant Date: 03/23/2023). The transmitter module itself has not changed. Here are the changes:

1. Only added 2 resistors, Due to the change of load, the previous resistance is changed to two welding, so that the load resistance of the whole machine is stronger.This change only affects the motor control part, which is separate from the RF part, so it does not affect the RF circuit. New Product Name: CONTROL BOX Model: CB4620 (add 2 resistor ) Original Model: CB4620 Sincerely, Title Manager Name: Mia Ye Address Room 247, Floor 6, Jiaxing Photovoltaic Science and Innovation Park, 1288 Kanghe Road Xiuzhou District, Jiaxing City, Zhejiang Province China Signature FCC Class II Permissive Change Request Letter Page 1 of 1

DewertOkin Technology Group Co., Ltd. C5266091_X10_Ed.2 Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject: Request for Confidentiality FCC ID: 2AVJ8-CB4620 To Whom It May Concern, Date: 2023-08-12 Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules

(47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits ID Label/Location Attestation Statement External Photos Block Diagram Schematics Test Report Test Setup Photos Users Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) SDR Software / Security Info Long-Term Confidentiality No No No No No NOTE 1 NOTE 1 No No Short-Term Confidentiality NOTE 2 No No No No No No NOTE 1: Long-Term Confidentiality may be permitted under special conditions (See II. LONG-TERM CONFIDENTIALITY, Section 3 of KDB 726920, use last in force) NOTE 2: Short-Term Confidentiality can be requested for a maximum of 180 days from the date of the grant. 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. In case of short-term Confidentiality, the applicant requests the exhibits selected above are withheld from public view for a period of ______ days from the date of the Grant of Equipment Authorization and prior to marketing. 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. Sincerely, Mia Ye 1/1

C5266091_X8_Ed.1 DewertOkin Technology Group Co., Ltd. Letter of Authorization Company:

DewertOkin Technology Group Co., Ltd. Address:

Room 247, Floor 6, Jiaxing Photovoltaic Science and Innovation Park, 1288 Kanghe Road Xiuzhou District,Jiaxing City, Zhejiang Province China Product Name:

CONTROL BOX Model Number: CB4620 FCC Identifier:

2AVJ8-CB4620 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name:

Mia Ye Date: 2023-08-12 Title: Manager Signature of applicant:

1/1

DewertOkin Technology Group Co., Ltd. US Agent for Service of Process LETTER OF ATTESTATION TO:

Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 03/13/2023 Ref: Attestation Statement Part 2.911(d)(7) Filing Applicant:

Company name: DewertOkin Technology Group Co., Ltd. Grantee code: 2AVJ8 Contact Name: Mia Ye Address: Room 247, Floor 6, Jiaxing Photovoltaic Science and Innovation Park, 1288 Kanghe Road, Xiuzhou District, Jiaxing City, Zhejiang Province 314016 China Telephone No: +86-573-82281072 Email: Mia.Ye@refinedchina.com DewertOkin Technology Group Co., Ltd. certifies that, as of the dates of this application, Americas Compliance Consulting LLC dba iCertifi iCertifi is our designated U.S. agent for service of process for the above referenced FCC ID. DewertOkin Technology Group Co., Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any commission-related proceeding involving the equipment. The Applicant is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause 2.911. iCertifi accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service process for the above referenced FCC ID. The US Agent for Service of Process is aware of and agrees to comply with the requirements outlined in the FCC Equipment Authorization Program, Report and Order FCC 22-84, and clause 2.911. Designated U.S. Agent Information:

Name: Americas Compliance consulting, LLC dba iCertifi FCC FRN: 0033399411 Address: 1001 SW Disk Drive, Suite 250, Bend, Oregon 97702 Contact Person: Paul Preston Tel: 866-885-4575 Email: fccagent@icertifi.com Sincerely, DewertOkin Technology Group Co., Ltd. Americas Compliance Consulting LLC dba iCertifi Paul Preston Mia Ye V02072023