2A2QD-HT-OM450Speakerphone

RF exposure statement This equipment complies with the FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. FCC Warning 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 1: 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. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

ZHEJIANG HUACHUANG VISION TECHNOLOGY CO., LTD. 16th Floor, Building 1, N0.1168 Bin, an Road, Binjiang Dis七rict,Hangzhou, P.R. China (FCC ID : 2A2QD-HT-OM450) POWER OF ATTORNEY DATE: 2022-11-09 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland M ills Road Columbia, MD 21046 T o Whom It May Concern: We, 七he undersigned, hereby authorize Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So on our behalf, to apply to the Federal Communications Commission on our e quipment. Any and all acts carried out by Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So 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, ZHEJIANG HUACHUANG VISION TECHNOLOGY CO., LTD. are not subject to a denial of f ederal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject 七o a denial of federal benefits pursuant to tha七 section. Sincerely, ZHEJIANG HUACHUANG VISION TECHNOLOGY CO., LTD. 心忙义卢汉； (LinXiao Xi) (Manager)

Reference No.: WTX22X10203768W001/002 Page 2 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 Reference No.: WTX22X10203768W001/002 Page 3 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 3 EUT View 4 Reference No.: WTX22X10203768W001/002 Page 4 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 5 EUT View 6 Reference No.: WTX22X10203768W001/002 Page 5 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 7

Reference No.: WTX22X10203768W001/002 Page 1 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format FCC ID: 2A2QD-HT-OM450 Specifications: The label shall be securely affixed to a permanently attached part of the device, in a location where it is visible or easily accessible to the user, and shall not be readily detachable. The label shall be sufficiently durable to remain fully legible and intact on the device in all normal conditions of use throughout the device’s expected lifetime. Proposed Label Location on EUT FCC ID Label Location

Reference No.: WTX22X10203768W001/002 Page 6 of 14 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 Solder Board-Component View 1 Reference No.: WTX22X10203768W001/002 Page 7 of 14 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 2 Solder Board-Component View 3 Reference No.: WTX22X10203768W001/002 Page 8 of 14 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 4 Solder Board-Component View 5

Reference No.: WTX22X10203768W001/002 Page 9 of 14 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 6 Solder Board-Component View 7 Reference No.: WTX22X10203768W001/002 Page 10 of 14 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 8 Solder Board-Component View 9 Reference No.: WTX22X10203768W001/002 Page 11 of 14 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 10 Antenna View

1. RF Exposure Requirements 1.1 General Information Client Information Applicant: ZHEJIANG HUACHUANG VISION TECHNOLOGY CO., LTD. Address of applicant: Floor 16, Building 1, No. 1168 BinAn Road, Binjiang District, Hangzhou, Zhejiang, China Manufacturer: ZHEJIANG HUACHUANG VISION TECHNOLOGY CO., LTD. Address of manufacturer: Floor 16, Building 1, No. 1168 BinAn Road, Binjiang District, Hangzhou, Zhejiang, China General Description of EUT: Product Name: Speakerphone Trade Name Hitrolink Model No.: HT-OM450 Adding Model(s): HT-OM450H, HT-OM450E, HT-OM450 Serise, HT-OM450H Serise, HT-OM450E Serise, HTI-OM450, HTI-OM450H, HTI-OM450E, HTI-OM450 Serise, HTI-OM450H Serise, HTI-OM450E Serise, OM450, OM450H, OM450E, OM450 Serise, OM450H Serise, OM450E Serise Rated Voltage: Battery DC 3.7V Battery Capacity: 1000*2mAh FCC ID: 2A2QD-HT-OM450 Equipment Type: Portable device Technical Characteristics of EUT: Bluetooth (BLE mode) Bluetooth Version: V5.1 (BLE mode) Frequency Range: 2402-2480MHz RF Output Power: -11.73dBm (Conducted) Data Rate: 1Mbps Modulation: GFSK Quantity of Channels: 40 Channel Separation: 2MHz Type of Antenna: Chip Antenna Antenna Gain: -1.43dBi Bluetooth (BR/EDR mode) Bluetooth Version: V5.1 (BR/EDR mode) Frequency Range: 2402-2480MHz RF Output Power: -10.67dBm (Conducted) Data Rate: 1Mbps, 2Mbps, 3Mbps Modulation: GFSK, π/4 DQPSK, 8DPSK Quantity of Channels: 79 Channel Separation: 1MHz Type of Antenna: Chip Antenna Antenna Gain: -1.43dBi 1.2 RF Exposure Exemption According to §1.1307(b)(3) and 447498 D04 Interim General RF Exposure Guidance v01, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. Option A: FCC Rule Part 1.1307 (b)(3)(i)(A):The available maximum time-averaged power is no more than 1mW, regardless of separation distance. Option B: FCC Rule Part 1.1307 (b)(3)(i)(B): The available maximum time-averaged power or effective radiated power (ERP), whichever is greater, is less than or equal to the threshold P th (mW) described in the following formula. P th is given by: Option C: FCC Rule Part 1.1307 (b)(3)(i)(C): The minimum separation distance (R in meters) from the body of a nearby person for the frequency (f in MHz) at which the source operates, the ERP (watts) is no more than the calculated value prescribed for that frequency. R must be at least λ/2π, where λ is the free-space operating wavelength in meters. Single RF Sources Subject to Routine Environmental Evaluation RF Source frequency (MHz) Threshold ERP (watts) 0.3-1.34 1,920 R 2 1.34-30 3,450 R 2 /f 2 30-300 3.83 R 2 300-1,500 0.0128 R 2 f 1,500-100,000 19.2R 2 For Multiple RF sources: FCC Rule Part 1.1307(b)(3)(ii): (A) The available maximum time-averaged power of each source is no more than 1 mW and there is a separation distance of two centimeters between any portion of a radiating structure operating and the nearest portion of any other radiating structure in the same device, except if the sum of multiple sources is less than 1 mW during the time-averaging period, in which case they may be treated as a single source (separation is not required). (B) In the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation. 1.3 Calculated Result Radio Access Technology Min. Frequency Max. Output Power Max. Tune-Up Output Power Antenna Gain Duty Cycle Tune-Up EIRP (MHz) (dBm) (dBm) (dBi) (%) (dBm) Bluetooth 2402 -10.67 -10.50 -1.43 100 -11.93 Frequency Option Min. Distance Tune-Up ERP Exposure Limit Ratio Result (MHz) (cm) (dBm) (mW) (mW) Pass/Fail 2402 B 0.5 -14.08 0.04 2.79 0.01 Pass Note: 1. ERP=EIRP-2.15dB; EIRP= Output Power + Antenna gain 2. Option A, B and C refers as clause 1.2. 3. For option B, Pth(mW) convert to Exposure Limit(mW); For option C, ERP(W) convert to Exposure Limit(mW). 4. Ratio= Tune-Up ERP(mW)/ Exposure Limit (mW) Mode for Simultaneous Multi-band Transmission: Radio Access Technology Ratio 1 Ratio 2 Simultaneous Ratio Limit Result Pass/Fail -- -- -- -- -- -- Result: Pass

Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 37 TEST REPORT Reference No. .................... : WTX22X10203768W002 FCC ID ................................ : 2A2QD-HT-OM450 Applicant ........................... : ZHEJIANG HUACHUANG VISION TECHNOLOGY CO., LTD. Address.............................. : Floor 16, Building 1, No. 1168 BinAn Road, Binjiang District, Hangzhou, Zhejiang, China Manufacturer ..................... : The same as Applicant Address.............................. : The same as Applicant Product Name ................... : Speakerphone Model No.. .......................... : HT-OM450 Standards .......................... : FCC Part 15.247 Date of Receipt sample .... : 2022-10-13 Date of Test........................ : 2022-10-13 to 2022-10-26 Date of Issue ..................... : 2022-10-27 Test Report Form No. ....... : WTX_Part 15_247W Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Email: [email protected] Tested by: Approved by: Jack Huang Silin Chen Reference No.: WTX22X10203768W002 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 2 of 37 TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................4 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .........................................................................4 1.2 TEST STANDARDS .................................................................................................................................................5 1.3 TEST METHODOLOGY ...........................................................................................................................................5 1.4 TEST FACILITY ......................................................................................................................................................5 1.5 EUT SETUP AND TEST MODE ..............................................................................................................................6 1.6 MEASUREMENT UNCERTAINTY .............................................................................................................................7 1.7 TEST EQUIPMENT LIST AND DETAILS ...................................................................................................................7 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 10 3. ANTENNA REQUIREMENT ................................................................................................................................ 11 3.1 STANDARD APPLICABLE ..................................................................................................................................... 11 3.2 EVALUATION INFORMATION ................................................................................................................................ 11 4. POWER SPECTRAL DENSITY ........................................................................................................................... 12 4.1 STANDARD APPLICABLE ..................................................................................................................................... 12 4.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 12 4.3 TEST PROCEDURE .............................................................................................................................................. 12 4.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 12 5. DTS BANDWIDTH ................................................................................................................................................. 13 5.1 STANDARD APPLICABLE ..................................................................................................................................... 13 5.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 13 5.3 TEST PROCEDURE .............................................................................................................................................. 13 5.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 13 6. RF OUTPUT POWER ............................................................................................................................................ 14 6.1 STANDARD APPLICABLE ..................................................................................................................................... 14 6.2 TEST SETUP BLOCK DIAGRAM ........................................................................................................................... 14 6.3 TEST PROCEDURE .............................................................................................................................................. 14 6.4 SUMMARY OF TEST RESULTS/PLOTS ................................................................................................................. 14 7. FIELD STRENGTH OF SPURIOUS EMISSIONS .......................................…

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Fanson 2022/09/29 Customer Aispeech Agent JuHeng Project name M4 Conference Speakerphone Model. IC AC6966B Model. ANT WAN3216F245C04 Feeding mode PIFA & Single Feeding Manufacturer Onewave 1 Antenna Specification 2 3216 Chip antenna For Bluetooth / WLAN Applications Fre.(MHz) 2400 2450 2483 S11(dB) ‐10.0 ‐20.5 ‐14.1 Ant. S11 Parameter 3 4 • Passive Test （ free space ） Ant. Gain Pattern @2.45GHz‐3D F requency (MHz) 2400.0 2410.0 24 20.0 2430.0 2440.0 2450.0 2460.0 2470. 0 2480.0 2490.0 2500.0 Gain (dBi) -1.6 4 -1.47 -1.43 -1.50 -1.61 -1.69 -1.85 -2.13 -2.41 -2.66 -2.96 Eff iciency (%) 28. 56 29.83 30.66 30.46 29.84 29.33 28.12 26.05 24.44 23.00 21.50 X Z Y

Reference No.: WTX22X10203768W001/002 Page 11 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 4 - TEST SETUP PHOTOGRAPHS Conducted Emission Test Setup Radiation Emission Test Setup (Below 30MHz) Reference No.: WTX22X10203768W001/002 Page 12 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (30MHz to 1GHz) Radiation Emission Test Setup (1GHz to 18GHz) Reference No.: WTX22X10203768W001/002 Page 13 of 13 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (Above 18GHz) ***** END OF REPORT *****