2BMDJ-001Bluetooth headset

Zhongshan Nobo Automation Equipment Co., LTD (November 22, 2024) 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 FCC ID: 2BMDJ-001 [Zhongshan Nobo Automation Equipment 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. Sincerely, (Applicant signature) (Applicant printed name) Deben Zhao Zhongshan Nobo Automation Equipment Co., LTD (November 22, 2024) 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 FCC ID: 2BMDJ-001 [Zhongshan Nobo Automation Equipment 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. Sincerely, (Applicant signature) (Applicant printed name) Deben Zhao

Zhongshan Nobo Automation Equipment Co., LTD (November 22, 2024) 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: Deben Zhao Title: General Manager

Zhongshan Nobo Automation Equipment Co., LTD (November 22, 2024) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Bluetooth headset /001 / FCC ID: 2BMDJ-001) 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 Long-Term Confidentiality Short-Term Confidentiality NOTE 2 ID Label/Location No No Attestation Statement No No External Photos No ☐ Block Diagram ☒ ☐ Schematics ☒ ☐ Test Report No No Test Setup Photos No ☐ User’s Manual ☐ NOTE 1 ☒ Internal Photos ☐ NOTE 1 ☒ Parts List / Tune Up ☐ ☐ RF Exposure Info No No Operational Description ☒ ☐ Cover Letter(s) No No SDR Software / Security Info ☐ 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: Deben Zhao Title: General Manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 10 Model: 001 External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 10 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 10 L Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 10 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 5 of 10 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 6 of 10 R Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 7 of 10 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 8 of 10 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 9 of 10 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 10 of 10

FCC ID LABEL: Label Location: FCC ID: 2BMDJ-001 Model No.: 001

Shenzhen CTB Testing Co., Ltd. FCC ID:2BMDJ-001 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHZ)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f(GHZ) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. EDR: Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion 2.402 1.86 1.53 1±1 2.00 1.58 <5 0.49127 3.00 YES 2.441 2.05 1.60 2±1 3.00 2.00 <5 0.62347 3.00 YES 2.480 1.563 1.43 1±1 2.00 1.58 <5 0.49918 3.00 YES 2.402 2.408 1.74 2±1 3.00 2.00 <5 0.61847 3.00 YES 2.441 2.675 1.85 2±1 3.00 2.00 <5 0.62347 3.00 YES 2.480 2.238 1.67 2±1 3.00 2.00 <5 0.62843 3.00 YES 2.402 2.699 1.86 2±1 3.00 2.00 <5 0.61847 3.00 YES 2.441 2.943 1.97 2±1 3.00 2.00 <5 0.62347 3.00 YES 2.480 2.404 1.74 2±1 3.00 2.00 <5 0.62843 3.00 YES GFSK π /4DQPSK 8DQPSK Conclusion: For the max result : 0.62843≤ FCC Limit 3.0 for 1g SAR.

5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 1 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com Product Name: WiFi/Bluetooth Chip Antenna – CW201 Part Number: H2U34C1H1B0100 Features: z Supporting WiFi/Bluetooth, covering 2400 to 2484 MHz z Surface Mount z Dimensions: 2.0 x 1.2 x 0.6 mm z High performance, small size. z RoHS & REACH Compliant Applications: z ISM 2.4 GHz applications z ZigBee/BLE applications z Bluetooth earphone systems z Hand-held devices when WiFi / Bluetooth functions are needed, e.g., Smart phones z IEEE802.11 b/g/n z Wireless PCMCIA cards or USB dongles 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 2 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com WiFi/Bluetooth Chip Antenna MODEL: CW201 Version: A I. Specifications: Mechanical Specifications Dimensions (mm) 2.0(L) x 1.2 (W) x 0.6 (H) Material Ceramic Termination Ag (environmental Pb free) Environmental Conditions Operation Temperature ( o C) -40 ~ +85 Storage Temperature ( o C) -5 ~ +40 Relative Humidity 10 ~ 70 % Items Specifications Frequencies (MHz) 2400~2484 Efficiency (%) 59.2 Average Gain (dB) -2.3 Peak Gain (dBi) 1.9 Test Condition 40 x 20 mm² (Evaluation board) Impedance (ƻ) 50 Polarization Linear Polarization 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 3 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com II. Layout Guide: Solder Land Pattern: The solder land pattern (gold marking areas) is shown below. Recommendation on matching circuit will be provided according to customer’s installation conditions. Grounding Pin Signal Input Transmission Line with 50ƻ Impedance Characteristic Top View Bottom View 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 4 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com III. Mechanical Dimensions: a) Antenna Dimensions b) PIN Definition PIN 1 2 Soldering Pad Signal Input Tuning/Signal Output TOP View Bottom View Side View Unit: mm Unit: mm 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 5 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com c) Test Board with Antenna Unit: mm 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 6 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com IV. Properties: a) Return loss (dB) b) Efficiency (%) 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 7 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com c) Average Gain (dB) d) Peak Gain (dBi) 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 8 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com V. Antenna Radiation Pattern Measurement: The antenna radiation patterns are measured in Unictron’s 3D Anechoic Chamber. The measurement setup is as show below. Z Y X 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 9 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com 3D Radiation Gain Pattern 2450 MHz (unit: dBi) X Y Z 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 10 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com VI. Frequency tuning: System Matching Circuit Component Location Description Vendor Tolerance 1 N/C - - 2 5.0 pF (0402) MURATA ±0.05 pF 3 0.8 pF (0402) MURATA ±0.05 pF 4 2.7 pF (0201) MURATA ±0.05 pF DC Block 22 pF (0402) MURATA ±5% 1 3 2 DC Block 4 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 11 © Unictron Technologies Corp . All specifications subject to change without notice. www.sanav.com www.unictron.com VII. Soldering conditions: Typical Soldering Profile for Lead-free Process VIII. Reminders for use of Unictron’s ceramic chip antennas: a) This chip antenna is made of ceramic materials which is relatively more rigid and brittle compared to circuit board materials. Furthermore, the length of this antenna is quite long. Bending of circuit board at the locations where chip antenna is mounted may cause the cracking of solder joints or antenna itself. b) Punching/cutting of the break-off tab of PCB panel may cause severe bending of the circuit board which may result in cracking of solder joints or chip antenna itself. Therefore break-off tab shall be located away from the installation site of chip antenna. c) Be cautious when ultrasonic welding process needs to be used near the locations where chip antennas are installed. Strong ultrasonic vibration may cause the cracking of chip antenna solder joints. 5F., No. 83, Kewang Rd., Longtan Dist., Taoyuan City 32556, Taiwan (R.O.C.) Tel: 886-3-4072728焋Fax: 886-3-4072738 焋[email protected] 12 © Unictron Technologies Corp . All specifications subject to change with…

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Report Tel: 4008-707- 283 Web: http://www.ctb-lab.net Page 1 of 56 TEST REPORT Compiled by: Reviewed by: Approved by: Zhou Kui Arron Liu Bin Mei / Director Note: If there is any objection to the inspection results in this report, please submit a written report to the company within 15 days from the date of receiving the report. The test report is effective only with both signature and specialized stamp. This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen CTB Testing Technology Co., Ltd. this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. “*” indicates the testing items were fulfilled by subcontracted lab. “#” indicates the items are not in CNAS accreditation scope. Product Name: Bluetooth headset FCC ID: 2BMDJ-001 Trademark: N/A Model Number: 001 Prepared For: Zhongshan Nobo Automation Equipment Co., LTD Address: Tanzhou Town, Bi'an Road 1108 card, Zhongshan City, Guangdong Province, China Manufacturer: Zhongshan Nobo Automation Equipment Co., LTD Address: Tanzhou Town, Bi'an Road 1108 card, Zhongshan City, Guangdong Province, China Prepared By: Shenzhen CTB Testing Technology Co., Ltd. Address: 1&2/F., Building A, No.26, Xinhe Road, Xinqiao, Xinqiao Street, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: Nov. 11, 2024 Sample tested Date: Nov. 11, 2024 to Nov. 12, 2024 Issue Date: Nov. 12, 2024 Report No.: CTB24111102601RF01 Test Standards FCC CFR Title 47 Part 15 Subpart C Section 15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.:CTB24111102601RF01 Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 56 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................... 4 2. TEST SUMMARY ................................................................... 5 3. MEASUREMENT UNCERTAINTY ..................................................... 6 4. PRODUCT INFORMATION AND TEST SETUP .......................................... 7 4.1 Product Information .................................................................... 7 4.2 Test Setup Configuration ............................................................... 7 4.3 Support Equipment .................................................................... 7 4.4 Channel List .......................................................................... 8 4.5 Test Mode ............................................................................ 8 4.6 Test Environment ...................................................................... 8 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................... 9 5.1 Test Facility ........................................................................... 9 5.2 Test Instrument Used .................................................................. 9 6. AC POWER LINE CONDUCTED EMISSION ............................................ 12 6.1 Block Diagram Of Test Setup .......................................................... 12 6.2 Limit ................................................................................ 12 6.3 Test procedure ....................................................................... 12 6.4 Test Result .......................................................................... 14 7. RADIATED SPURIOUS EMISSION ................................................... 16 7.1 Block Diagram Of Test Setup .......................................................... 16 7.2 Limit ................................................................................ 16 7.3 Test procedure ....................................................................... 17 7.4 Test Result .......................................................................... 18 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 27 8.1 Block Diagram Of Test Setup .......................................................... 27 8.2 Limit ................................................................................ 27 8.3 Test procedure ....................................................................... 27 8.4 Test Result .......................................................................... 28 9. COUDUCTED PEAK OUTPUT POWER ............................................... 35 9.1 Block Diagram Of Test Setup .......................................................... 35 9.2 Limit ................................................................................ 35 9.3 Test procedure ....................................................................... 35 9.4 Test Result .......................................................................... 35 10. 20DB OCCUPIED BANDWIDTH...................................................... 39 10.1 Block Diagram Of Test Setup ......................................................... 39 10.2 Limit ............................................................................... 39 10.3 Test procedure ...................................................................... 39 10.4 Test Result ......................................................................... 39 11. CARRIERFREQUENCIES SEPARATION .............................................. 43 11.1 Block Diagram Of Test Setup ......................................................... 43 11.2 Limit ............................................................................... 43 11.3 Test procedure ...................................................................... 43 11.4 Test Result ......................................................................... 43 12. HOPPING CHANNEL NUMBER ...................................................... 47 12.1 Block Diagram Of Test Setup ......................................................... 47 12.2 Limit .....................................................…

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Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 2 Model: 001 Radiated Emission Below 1G Above 1G Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 2 Conducted emissions