2BBTZ-D3PRO-END3 pro

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Page 1 of 5 FCC ID: 2BBTZ-D3PRO-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. External Photos Photo 1 Photo 2 Page 2 of 5 FCC ID: 2BBTZ-D3PRO-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 3 Photo 4 Page 3 of 5 FCC ID: 2BBTZ-D3PRO-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 5 Photo 6 Page 4 of 5 FCC ID: 2BBTZ-D3PRO-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 7 Photo 8 Page 5 of 5 FCC ID: 2BBTZ-D3PRO-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 9 ------End------

Label FCC ID: 2BBTZ-D3PRO-EN

Page 1 of 3 FCC ID: 2BBTZ-D3PRO-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Internal Photos Photo 1 Photo 2 Page 2 of 3 FCC ID: 2BBTZ-D3PRO-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 3 Photo 4 Page 3 of 3 FCC ID: 2BBTZ-D3PRO-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Photo 5 Photo 6 ------End------ Antenna

RF Exposure evaluation FCC ID: 2BBTZ-D3PRO-EN 1.1. Applicable Standard According to §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 §1.1310 and §2.1093 RF exposure requirement KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 1.2. Requirement According to KDB447498 D01 General RF Exposure Guidance v06 Section 4.3.1 Standalone SAR test exclusion considerations: “Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.23 “ [(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 • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm according to 5) in section 4.1 is applied to determine SAR test exclusion. 1.3. Manufacturing tolerance Frequency (MHz) GFSK(BLE 1M) 2402 2440 2480 Target (dBm) 2 2 2 Tolerance ± (dB) 1.0 1.0 1.0 Frequency (MHz) GFSK(BLE 2M) 2402 2440 2480 Target (dBm) 2 2 2 Tolerance ± (dB) 1.0 1.0 1.0 Page 2 of 2 2. E v a l u a t i o n R e s u l t Evaluation Results Band/Mode f (GHz) Antenna Distance (mm) RF output power (including tune-up tolerance) SAR Test Exclusion Threshold SAR Test Exclusion dBm mW BLE 2.5 5 3.0 1.995 0.631 <3.0 Yes 3. C o n c l u s i o n The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06 .....................End of Report.........................

Page 1 of 34 Report No.: AIT23063001FW1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. TEST REPORT Client Information: Applicant: Shanghai WhalesBot Technology Co., Ltd Applicant add.: 3 / F, building 19, No. 60, Zhonghui Road, Minhang District, Shanghai Manufacturer: Shanghai WhalesBot Technology Co., Ltd Manufacturer add.: 3 / F, building 19, No. 60, Zhonghui Road, Minhang District, Shanghai Product Information: Product Name: D3 pro Model/HVIN: D3 pro-EN Brand Name: WhalesBot FCC ID: 2BBTZ-D3PRO-EN Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Prepared By: Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang,Dongguan, Guangdong, China Tel.: +86-769-8202 0499 Fax.: +86-769-8202 0495 Date of Receipt: June 30,2023 Date of Test: June 30,2023~July 03,2023 Date of Issue: July 04,2023 Test Result: Pass This device described above has been tested by Dongguan Yaxu (AiT) Technology Limited and the test results show that the equipment under test (EUT) is in compliance with the FCC requirements. And it is applicable only to the tested sample identified in the report. Note: This report shall not be reproduced except in full, without the written approval of Dongguan Yaxu (AiT) Technology Limited, this document may be altered or revised by Dongguan Yaxu (AiT) Technology Limited, personal only, and shall be noted in the revision of the document. This test report must not be used by the client to claim product endorsement. Reviewed by: Approved by: Simba Huang Seal.chen Page 2 of 34 Report No.: AIT23063001FW1 Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. 1 Contents Page COVER PAGE 1 CONTENTS ...................................................................................................................................................................... 2 2 TEST SUMMARY ............................................................................................................................................................ 4 2.1 Statement of the Measurement Uncertainty ................................................................................. 4 2.2 Measurement Uncertainty ............................................................................................................. 4 3 TEST FACILITY ............................................................................................................................................................... 5 3.1 Deviation from standard ................................................................................................................ 5 3.2 Abnormalities from standard conditions ........................................................................................ 5 3.3 Test Location ................................................................................................................................. 5 4 GENERAL INFORMATION ........................................................................................................................................... 6 4.1 Test frequencies ............................................................................................................................ 7 4.2 EUT Peripheral List ....................................................................................................................... 7 4.3 Test Peripheral List ........................................................................................................................ 7 4.4 TEST METHODOLOGY ................................................................................................................ 8 4.4.1 EUT Configuration ............................................................................................................................. 8 4.4.2 EUT Exercise ..................................................................................................................................... 8 4.4.3 General Test Procedures ................................................................................................................... 8 4.5 Description of Test Modes ............................................................................................................. 9 5 EQUIPMENT USED DURING TEST ...........................................................................................................................10 6 TEST RESULTS AND MEASUREMENT DATA .......................................................................................................11 6.1 Antenna requirement ................................................................................................................... 11 6.2 On Time and Duty Cycle ............................................................................................................. 12 6.3 Maximum Conducted Output Power Measurement .................................................................... 13 6.4 6 dB Spectrum Bandwidth Measurement.................................................................................... 15 6.5 99% Occupy Bandwidth .............................................................................................................. 16 6.6 Power Spectral Density ............................................................................................................... 17 6.7 Conducted Spurious Emissions and Band Edges Test ............................................................... 18 6.8 Restrict-band Band-edge Measurements ................................................................................... 19 6.9 Radiated Emissions Measurement ............................................................................................. 22 6.10 Conducted Emissions .................................................................................................................. 33…

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A n t e n n a t e s t r e p o r t C u s t o m e r N a m e: Feng Wang P r o j e c t N a m e : D3 pro D e s i g n e r : Z h a n g Y a n g D a t e : 20 2 3 / 0 2 / 0 2 2 The customer name Feng Wang Project Name D3 pro Detailed abo e NO. project Detailed abo v e 1 spectrum Lora / WIFI 2 Project type The controller 2 Project type The controller 3 Antenna space area Fd it 4 F ee d po i n t type 5 The sensitivity 6 Type of antennaThe length 7 of the PCB board 8 note Debugging prototype RF Feng Wang 18017141733 [email protected] 3 1 、 Test system and test equipment System Brand: MVG(SATIMO) measurement features: gain • pattern beamwidth cross polarization resolution sidelobe level 3D cavity reflectance at any polarization cavity reflectance (line or arc) antenna efficiency TRP, TIS, EIRP and EIS. Frequency band: StarLab 2402MHz-2480MHz The object under test Link antenna Test Equipment Antenna position Lora antenna WIFI antenna Efficient ( Lora+ WiFi ) PEAK GAIN LORA: Frequency range Efficiency(%) Gain(dBi) 2402M H z-2480M H z 20.05 -2 WIFI: ~ 2.4G-WIFI 2402M H z 2480M H z 34.67 0 Efficient ( 2402MHz-2480MHz ） 2402MHz Ef f i c i e n t ( 2 . 4 G W I F I ) 2402MHz-2480MHz 2 4 5 0 . 0 0 0 M H z H 2 4 5 0 . 0 0 0 M H 2 4 5 0 . 0 0 0 M H z E 1 z E 2

Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 1 of 36 Appendix B RF Test Data for BT (BLE) (Conducted Measurement) Product Name: D3 pro Trade Mark: D3 pro-EN Test Model: WhalesBot Environmental Conditions Temperature: 25.7 C Relative Humidity: 52.3% ATM Pressure: 100.0 kPa Test Engineer: Simba Huang Supervised by: Seal Chen Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 2 of 36 Contents Page COVER PAGE 1 Duty Cycle....................................................................................................................................................................................... 3 1.1 Test Result .......................................................................................................................................................................... 3 1.2 Test Graphs ......................................................................................................................................................................... 4 2 Maximum Conducted Output Power ................................................................................................................................................ 7 2.1 Test Result .......................................................................................................................................................................... 7 2.2 Test Graphs ......................................................................................................................................................................... 8 3 -6dB Bandwidth ............................................................................................................................................................................. 11 3.1 Test Result ........................................................................................................................................................................ 11 3.2 Test Graphs ....................................................................................................................................................................... 12 4 Maximum Power Spectral Density Level ....................................................................................................................................... 15 4.1 Test Result ........................................................................................................................................................................ 15 4.2 Test Graphs ....................................................................................................................................................................... 16 5 Band Edge .................................................................................................................................................................................... 19 5.1 Test Result ........................................................................................................................................................................ 19 5.2 Test Graphs ....................................................................................................................................................................... 20 6 Conducted RF Spurious Emission ................................................................................................................................................. 24 6.1 Test Result ........................................................................................................................................................................ 24 6.2 Test Graphs ....................................................................................................................................................................... 25 7 Restrict Band ................................................................................................................................................................................ 31 7.1 Test Result ........................................................................................................................................................................ 31 7.2 Test Graphs ....................................................................................................................................................................... 33 Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 3 of 36 1 Duty Cycle 1.1 Test Result Mode Frequency (MHz) Duty Cycle (%) 1/T (kHz) BLE 1M 2402 64.42 2.56 BLE 1M 2440 64.42 2.5 BLE 1M 2480 64 2.56 BLE 2M 2402 34.42 4.76 BLE 2M 2440 35.2 4.76 BLE 2M 2480 35.21 4.76 Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 4 of 36 1.2 Test Graphs Test Graphs BLE 1M 2402MHz BLE 1M 2440MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 5 of 36 BLE 1M 2480MHz BLE 2M 2402MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 6 of 36 BLE 2M 2440MHz BLE 2M 2480MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 7 of 36 2 Maximum Conducted Output Power 2.1 Test Result Mode Frequency (MHz) Conducted Power (dBm) Limit (dBm) Verdict BLE 1M 2402 1.2 30 Pass BLE 1M 2440 2.32 30 Pass BLE 1M 2480 2.1 30 Pass BLE 2M 2402 1.24 30 Pass BLE 2M 2440 2.38 30 Pass BLE 2M 2480 2.11 30 Pass Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 8 of 36 2.2 Test Graphs Test Graphs BLE 1M 2402MHz BLE 1M 2440MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 9 of 36 BLE 1M 2480MHz BLE 2M 2402MHz Dongguan Yaxu(AiT) Technology Limited Report No.: AIT23063001FW1 FCC ID: 2BBTZ-D3PRO-EN Page 10 of 36 BLE 2M 2440MHz BLE 2M 2480MHz Dongguan Yaxu(AiT) Technology Limi…

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Page 1 of 1 FCC ID:2BBTZ-D3PRO-EN Dongguan Yaxu (AiT) Technology Limited No.22, Jinqianling 3rd Street, Jitigang, Huangjiang, Dongguan, Guangdong, China. Test Setup Photo Radiated Emission ------End------