FCC ID: 2A6Z6-F84 Coleus

84-key US Layout Indicator LEDs Status Logo LED Color Definition Blue LED WB Coleus BT#1 Blue LED WB Coleus BT#2 Blue LED WB Coleus BT#3 Green LED RF 2.4GHz Connection Red Led Battery status White LED

/Light Blue LED Apple Macintosh

/Microsoft Windows Press directly Shift +

(US layout) Press Fn +

(1 seconds) Press Fn +

(3 seconds) 1 2 3 4 5

RF connection BT #1 connection BT #2 connection BT #3 connection Searching RF Dongle to pair Searching host BT#1 to pair Searching host BT#2 to pair Searching host BT#3 to pair USB connection

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. Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority 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 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 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. The device has been evaluated to meet general RF exposure requirement. The device can be u sed in portable exposure condition without restriction

(KSI Holding, Inc.)

(Feb. 17, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (2A6Z6-F84)

[KSI Holding, Inc.] (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. Sincerely,

(Applicant signature)

(Applicant printed name) Sharon Chan

(KSI Holding, Inc.)

(Feb. 17, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (2A6Z6-F84)

[KSI Holding, Inc.] (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. Sincerely,

(Applicant signature)

(Applicant printed name) Sharon Chan

KSI Holding, Inc.

(2023.02.17) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern:

We, the undersigned, hereby authorize (Shenzhen CTB Testing Technology Co., Ltd.) to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Signature:

Name: Sharon Chan Title: Sales Manager

Attestation Statements

(Feb. 21, 2023) TO: Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046, USA RE: Attestation Statements Part 2.911(d)(7) request

(KSI Holding, Inc. ), the undersigned, hereby authorize (KSI Holding, Inc.) to act as our designated U.S. agent for service of process, (KSI Holding, Inc.) 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.

(KSI Holding, Inc.) accepts the responsibility to act as designated U.S. agent for service of process, provides 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. Applicant Information Company name: KSI Holding, Inc. Contact Name: Sharon Chan Address: 14494 Wicks Blvd, San Leandro, CA 94577 U.S.A. Telephone No: 510 562 5000 ext. 1 Email: daihz@hengyu-tech.com.cn U.S. Agent Information:

Company Name: KSI Holding, Inc. Address: 14494 Wicks Blvd, San Leandro, CA 94577 U.S.A. Contact Name: Sharon Chan Telephone No: 510 562 5000 ext. 1 Email: daihz@hengyu-tech.com.cn FRN: 0032447880 Applicant Signature:

Agent Signature:

Applicant printed name: Sharon Chan Agent printed name: Sharon Chan

KSI Holding, Inc.

(2023.02.17 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Coleus / F84, WF84, CBL84XS FCC ID:

2A6Z6-F84) To Whom It May Concern:

This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the 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 required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Signature:

Name: Sharon Chan Title: Sales Manager

KSI Holding, Inc. Model Difference Data2023.02.17 Product description: Coleus Model name: F84, WF84, CBL84XS Trade Name: Wombat FCC ID: 2A6Z6-F84 All the model are the same circuit and RF module, except model names . Regards Sincerely Clients signature :

Clients name / title : Sharon ChanSales Manager Contact information / address14494 Wicks Blvd, San Leandro, CA 94577 U.S.A.