2A4WDZK-TB21

FCC ID

Application Frequency Range	Final Action Date Granted
hm7WK/NkYV14TAu7Xq1fbA== 2402.0-2480.0	2022-02-28 APPROVED

File Name	Document Type	Date	Direct
RF Exposure	RF Exposure Info	2022-02-28 00:00:00	pdf
Model family declaration	Attestation Statements	2022-02-28 00:00:00	pdf
User manual	Users Manual	2022-02-28 00:00:00	pdf
Test setup photos	Test Setup Photos	2022-02-28 00:00:00	pdf
Test reports	Test Report	2022-02-28 00:00:00	pdf
ID label and location	ID Label/Location Info	2022-02-28 00:00:00	pdf
Internal photos	Internal Photos	2022-02-28 00:00:00	pdf
External photos	External Photos	2022-02-28 00:00:00	pdf
Confidentiality	Cover Letter(s)	2022-02-28 00:00:00	pdf
Letter Authorization	Cover Letter(s)	2022-02-28 00:00:00	pdf
Block Diagram	Block Diagram		N/A
Operational Description	Operational Description		N/A
Schematics	Schematics		N/A

Equipment	Bluetooth Audio Power Amplifier
FRN	0032008856
Grantee Code	2A4WD
Product Code	ZK-TB21
Applicant Business	Qingdao Wuzhi Intelligent Technology Co., Ltd.
Business Address	No. 438, Xiaoxinhe Road Huangdao District, Qingdao City,, Shandong Province,N/A China
TCB Scope	A4: UNII devices & low power transmitters using spread spectrum techniques
TCB Email	[email protected]
Applicant	CHENCHEN ZHANG – General manager
Applicant Phone
Applicant Fax	13538218145
Applicant Email	[email protected]
Applicant MailStop
Test Firm	Shenzhen CTB Testing Technology Co., Ltd.
Test Firm Contact	Simon Lee
Test Firm Phone
Test Firm Fax
Test Firm Email	[email protected]
Certified By	ZHANGCHENCHEN – General manager