2BULU-BIBOARDV1Robot Dog Bittle X V2

FCC Caution. 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. *RF warning for Mobile device: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

Local Representative Letter For Certification Service in the USA Federal Communications Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(7), of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BULU-BIBOARDV1 PTBLTA1, PTBLXA4, PTBLXK4, PTBLTK1, PTBSTA1, PTBSTK1 We hereby acknowledge as follows: i. both signees confirm that the point of contact accepts responsibility to act as a US- American Representative on behalf of the applicant ii. the point of contact provides the physical U.S. address and email as listed below iii. both parties maintain the requirements of this agreement 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. iv. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. US-American Point of Contact Applicant/Approval Holder Signature Date: 2026-1-26 Signature Date: 2026-1-26 Company Name: GLOCERTS TECHNOLOGY INC Petoi LLC FRN: 0036339737 0037929551 Contact Name: Huiying Fan Rongzhong Li Address: 19784 SUNKISSED RIDGE DR, RIVERSIDE, CA 92507 340 E Middlefield Rd Mountain View, CA 94043 Phone: (626) 588-8039 (510) 2888 328 Email: [email protected] [email protected]

Page 1 of 3 FCC ID: 2BULU-BIBOARDV1 External Photo Page 2 of 3 FCC ID: 2BULU-BIBOARDV1 Page 3 of 3 FCC ID: 2BULU-BIBOARDV1

Label 1. The label is silk-screen on the sample FCC ID: 2BULU-BIBOARDV1

Page 1 of 4 FCC ID: 2BULU-BIBOARDV1 Internal Photo Page 2 of 4 FCC ID: 2BULU-BIBOARDV1 PCB ANT Page 3 of 4 FCC ID: 2BULU-BIBOARDV1 Page 4 of 4 FCC ID: 2BULU-BIBOARDV1

Page 1 of 10 Report No.: AiTSZ-260108010FW4 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. RF Exposure evaluation Product Name : Robot Dog Bittle X V2 Brand Name : Petoi Bittle Model : PTBLTA1 Series Model : PTBLXA4, PTBLXK4, PTBLTK1, PTBSTA1, PTBSTK1 FCC ID : 2BULU-BIBOARDV1 Applicant : Petoi LLC Address : 340 E Middlefield Rd Mountain View, CA 94043 Manufacturer : Petoi (Shenzhen) Technology Co., Ltd. Address : Room 303, Building U5, U8 Intelligent Industrial Park, Guxing Community, Xixiang Street, Baoan District, Shenzhen, PRC Standard(s) : 47CFR §1.1310, 47CFR §2.1091 KDB447498 D01 General RF Exposure Guidance v06 Date of Receipt : Jan. 08, 2026 Date of Test : Jan. 08, 2026~ Jan. 14, 2026 Issued Date : Jan. 14, 2026 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 10 Report No.: AiTSZ-260108010FW4 Report Revise Record Report Version Issued Date Notes M0 Jan. 14, 2026 Initial Release Page 3 of 10 Report No.: AiTSZ-260108010FW4 Contents 1 GENERAL INFORMATION .......................................................................................................................................... 4 1.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 4 1.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 6 1.4 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 6 2 METHOD OF MEASUREMENT ................................................................................................................................... 7 2.1 APPLICABLE STANDARD.................................................................................................................................................. 7 2.2 LIMIT ......................................................................................................................................................................... 7 2.3 MPE CALCULATION METHOD ......................................................................................................................................... 8 2.4 MANUFACTURING TOLERANCE ........................................................................................................................................ 8 2.5 STANDALONE MPE RESULT .......................................................................................................................................... 10 2.6 CONCLUSION ............................................................................................................................................................. 10 Page 4 of 10 Report No.: AiTSZ-260108010FW4 1 GENERAL INFORMATION 1.1 Environmental conditions During the measurement the environmental conditions were within the listed ranges: Normal Temperature: 25°C Relative Humidity: 55 % Air Pressure: 101 kPa 1.2 General Description of EUT Product Name: Robot Dog Bittle X V2 Model/Type reference: PTBLTA1 Serial Model: PTBLXA4, PTBLXK4, PTBLTK1, PTBSTA1, PTBSTK1 Model difference All the models are exactly the same as the samples, except for the differences in the appearance color and the touch function on the back of the servo (motor), all the models are electrical identical same mechanical structure and design. Power Rating: Input:7.4V,1A,7.4W Battery: Model: ZCF503060 Charging voltage:5V Limiting voltage:5.2V Capacity:1000mAh Hardware Version: V1.0 Software Version: B10_241217 Sample(s) Status: AiTSZ-260108010-1(Normal sample) AiTSZ-260108010-2(Engineer sample) Bluetooth : Supported type: Bluetooth BR/EDR Modulation: GFSK, π/4DQPSK, 8DPSK Operation frequency: 2402MHz~2480MHz Channel number: 79 Channel separation: 1MHz Antenna type: PCB antenna Antenna gain: 2.7dBi Bluetooth LE: Supported type: Bluetooth LE 1M/2M Modulation: GFSK Operation frequency: 2402MHz~2480MHz Channel number: 40 Channel separation: 2MHz Antenna type: PCB antenna Antenna gain: 2.7dBi Page 5 of 10 Report No.: AiTSZ-260108010FW4 2.4G WIFI: Supported type: 802.11b/802.11g /802.11n(HT20)/802.11n(HT40) Modulation: 802.11b(DSSS):CCK,DQPSK,DBPSK 802.11g(OFDM):BPSK,QPSK,16-QAM,64-QAM 802.11n(OFDM):BPSK,QPSK,16-QAM,64-QAM Operation frequency: 802.11b/802.11g/802.11n(H20): 2412MHz~2462MHz 802.11n(H40): 2422MHz~2452MHz Channel number: 802.11b/802.11g/802.11n(H20): 11 802.11n(H40): 7 Channel separation: 5MHz Antenna type: PCB antenna Antenna gain: 2.7dBi Remark: The above DUT's information was declared by manufacturer. For more detailed features description, please refer to the manufacturer’s specifications or the User's Manual. Page 6 of 10 R…

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Page 1 of 37 Report No.: AiTSZ-260108010FW1 Note: This device has been tested and found to comply with the standard(s) listed, this test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. This report shall not be reproduced except in full, without the written approval of Guangdong Asia Hongke Test Technology Limited. If there is a need to alter or revise this document, the right belongs to Guangdong Asia Hongke Test Technology Limited, and it should give a prior written notice of the revision document. This test report must not be used by the client to claim product endorsement. Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China. TEST REPORT Product Name : Robot Dog Bittle X V2 Brand Name : Petoi Bittle Model : PTBLTA1 Series Model : PTBLXA4, PTBLXK4, PTBLTK1, PTBSTA1, PTBSTK1 FCC ID : 2BULU-BIBOARDV1 Applicant : Petoi LLC Address : 340 E Middlefield Rd Mountain View, CA 94043 Manufacturer : Petoi (Shenzhen) Technology Co., Ltd. Address : Room 303, Building U5, U8 Intelligent Industrial Park, Guxing Community, Xixiang Street, Baoan District, Shenzhen, PRC Standard(s) : FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of Receipt : Jan. 08, 2026 Date of Test : Jan. 08, 2026~ Jan. 14, 2026 Issued Date : Jan. 14, 2026 Issued By: Guangdong Asia Hongke Test Technology Limited B1/F, Building 11, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China Tel.: +86 0755-230967639 Fax.: +86 0755-230967639 Reviewed by: Approved by: Aalen.Ye Allen Wang Page 2 of 37 Report No.: AiTSZ-260108010FW1 Report Revise Record Report Version Issued Date Notes M0 Jan. 14, 2026 Initial Release Page 3 of 37 Report No.: AiTSZ-260108010FW1 Contents 1 TEST SUMMARY ....................................................................................................................................................... 4 1.1 TEST STANDARDS ......................................................................................................................................................... 4 1.2 TEST SUMMARY ........................................................................................................................................................... 4 1.3 TEST FACILITY .............................................................................................................................................................. 5 1.4 MEASUREMENT UNCERTAINTY ........................................................................................................................................ 5 2 GENERAL INFORMATION .......................................................................................................................................... 6 2.1 ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 6 2.2 GENERAL DESCRIPTION OF EUT ...................................................................................................................................... 6 2.3 DESCRIPTION OF TEST MODES AND TEST FREQUENCY .......................................................................................................... 7 2.4 SPECIAL ACCESSORIES ................................................................................................................................................... 8 2.5 EQUIPMENT LIST FOR THE TEST ....................................................................................................................................... 8 3 TEST CONDITIONS AND RESULTS ............................................................................................................................ 10 3.1 CONDUCTED EMISSIONS TEST ....................................................................................................................................... 10 3.2 RADIATED EMISSIONS AND BAND EDGE .......................................................................................................................... 13 3.3 MAXIMUM PEAK OUTPUT POWER................................................................................................................................. 20 3.4 20DB BANDWIDTH ..................................................................................................................................................... 21 3.5 OCCUPIED BANDWIDTH ............................................................................................................................................... 22 3.6 FREQUENCY SEPARATION ............................................................................................................................................. 23 3.7 NUMBER OF HOPPING FREQUENCY ................................................................................................................................. 24 3.8 TIME OF OCCUPANCY (DWELL TIME) .............................................................................................................................. 25 3.9 OUT-OF-BAND EMISSIONS ........................................................................................................................................... 26 3.10 PSEUDORANDOM FREQUENCY HOPPING SEQUENCE .......................................................................................................... 28 3.11 ANTENNA REQUIREMENT ............................................................................................................................................. 29 4 TEST SETUP PHOTOGRAPHS OF EUT ....................................................................................................................... 30 5 PHOTOS OF EUT ........................…

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Antenna Specification Manufacturer: Espressif Systems (Shanghai) Co.,Ltd. Address: Suite 204, Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, China Type: PCB Antenna Frequency Range: 2400–2500MHz Max Gain: 2.7 dBi Polarization: Linear Impedance: 50 Ω VSWR: ≤2.0 Dimensions: Unit: mm Horizontal: 2400 MHz 2450 MHz 2500 MHz Vertical: 2400 MHz 2450 MHz 2500 MHz

Page 1 of 51 Report No.: AiTSZ-260108010FW1 Appendix test data for BT Page 2 of 51 Report No.: AiTSZ-260108010FW1 1. Bandwidth 1.1 Test Result 1.1.1 OBW Mode TX Type Frequency (MHz) Packet Type ANT 99% Occupied Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 0.854 / Pass 2441 DH5 1 0.857 / Pass 2480 DH5 1 0.856 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.170 / Pass 2441 2DH5 1 1.170 / Pass 2480 2DH5 1 1.172 / Pass 8DPSK SISO 2402 3DH5 1 1.177 / Pass 2441 3DH5 1 1.179 / Pass 2480 3DH5 1 1.181 / Pass 1.1.2 20dB BW Mode TX Type Frequency (MHz) Packet Type ANT 20dB Bandwidth (MHz) Verdict Result Limit GFSK SISO 2402 DH5 1 0.955 / Pass 2441 DH5 1 0.952 / Pass 2480 DH5 1 0.951 / Pass Pi/4DQPSK SISO 2402 2DH5 1 1.317 / Pass 2441 2DH5 1 1.318 / Pass 2480 2DH5 1 1.284 / Pass 8DPSK SISO 2402 3DH5 1 1.303 / Pass 2441 3DH5 1 1.302 / Pass 2480 3DH5 1 1.302 / Pass Page 3 of 51 Report No.: AiTSZ-260108010FW1 1.2 Test Graph 1.2.1 OBW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 4 of 51 Report No.: AiTSZ-260108010FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 5 of 51 Report No.: AiTSZ-260108010FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 6 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 7 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 8 of 51 Report No.: AiTSZ-260108010FW1 1.2.2 20dB BW GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 9 of 51 Report No.: AiTSZ-260108010FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 10 of 51 Report No.: AiTSZ-260108010FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 11 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 12 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 13 of 51 Report No.: AiTSZ-260108010FW1 2. Maximum Conducted Output Power 2.1 Test Result 2.1.1 Power Mode TX Type Frequency (MHz) Packet Type Maximum Peak Conducted Output Power (dBm) Verdict ANT1 Limit GFSK SISO 2402 DH5 4.61 <=30 Pass 2441 DH5 4.53 <=30 Pass 2480 DH5 4.32 <=30 Pass Pi/4DQPSK SISO 2402 2DH5 3.18 <=20.97 Pass 2441 2DH5 3.10 <=20.97 Pass 2480 2DH5 2.79 <=20.97 Pass 8DPSK SISO 2402 3DH5 3.52 <=20.97 Pass 2441 3DH5 3.40 <=20.97 Pass 2480 3DH5 3.10 <=20.97 Pass Note1: Antenna Gain: Ant1: 2.7dBi; Page 14 of 51 Report No.: AiTSZ-260108010FW1 2.2 Test Graph 2.2.1 Power GFSK_DH5_LCH_2402MHz_Ant1_NTNV GFSK_DH5_MCH_2441MHz_Ant1_NTNV Page 15 of 51 Report No.: AiTSZ-260108010FW1 GFSK_DH5_HCH_2480MHz_Ant1_NTNV Pi/4DQPSK_2DH5_LCH_2402MHz_Ant1_NTNV Page 16 of 51 Report No.: AiTSZ-260108010FW1 Pi/4DQPSK_2DH5_MCH_2441MHz_Ant1_NTNV Pi/4DQPSK_2DH5_HCH_2480MHz_Ant1_NTNV Page 17 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH5_LCH_2402MHz_Ant1_NTNV 8DPSK_3DH5_MCH_2441MHz_Ant1_NTNV Page 18 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH5_HCH_2480MHz_Ant1_NTNV Page 19 of 51 Report No.: AiTSZ-260108010FW1 3. Carrier Frequency Separation 3.1 Test Result 3.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type Channel Separation (MHz) 20dB Bandwidth (MHz) Limit (MHz) Verdict GFSK SISO HOPP DH5 1.010 0.955 >=0.955 Pass Pi/4DQPSK SISO HOPP 2DH5 1.006 1.318 >=0.879 Pass 8DPSK SISO HOPP 3DH5 1.001 1.303 >=0.869 Pass Page 20 of 51 Report No.: AiTSZ-260108010FW1 3.2 Test Graph 3.2.1 Ant1 GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Page 21 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH5_HOPP_Ant1_NTNV Page 22 of 51 Report No.: AiTSZ-260108010FW1 4. Number of Hopping Frequencies 4.1 Test Result 4.1.1 HoppNum Mode TX Type Frequency (MHz) Packet Type Num of Hopping Frequencies Verdict ANT1 Limit GFSK SISO HOPP DH5 79 >=15 Pass Pi/4DQPSK SISO HOPP 2DH5 79 >=15 Pass 8DPSK SISO HOPP 3DH5 79 >=15 Pass Page 23 of 51 Report No.: AiTSZ-260108010FW1 4.2 Test Graph 4.2.1 HoppNum GFSK_DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Page 24 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH5_HOPP_Ant1_NTNV Page 25 of 51 Report No.: AiTSZ-260108010FW1 5. Time of Occupancy (Dwell Time) 5.1 Test Result 5.1.1 Ant1 Ant1 Mode TX Type Frequency (MHz) Packet Type Duration of Single Pulse (ms) Observation Period (s) Num of Pulse in Observation Period Dwell Time (ms) Limit (ms) Verdict GFSK SISO HOPP DH1 0.386 31.600 318 122.748 <=400 Pass DH3 1.644 31.600 165 271.260 <=400 Pass DH5 2.892 31.600 108 312.336 <=400 Pass Pi/4DQPSK SISO HOPP 2DH1 0.396 31.600 319 126.324 <=400 Pass 2DH3 1.646 31.600 158 260.068 <=400 Pass 2DH5 2.900 31.600 113 327.700 <=400 Pass 8DPSK SISO HOPP 3DH1 0.396 31.600 319 126.324 <=400 Pass 3DH3 1.652 31.600 162 267.624 <=400 Pass 3DH5 2.902 31.600 110 319.220 <=400 Pass Page 26 of 51 Report No.: AiTSZ-260108010FW1 5.2 Test Graph 5.2.1 Ant1 GFSK_DH1_HOPP_Ant1_NTNV GFSK_DH1_HOPP_Ant1_NTNV Page 27 of 51 Report No.: AiTSZ-260108010FW1 GFSK_DH3_HOPP_Ant1_NTNV GFSK_DH3_HOPP_Ant1_NTNV Page 28 of 51 Report No.: AiTSZ-260108010FW1 GFSK_DH5_HOPP_Ant1_NTNV GFSK_DH5_HOPP_Ant1_NTNV Page 29 of 51 Report No.: AiTSZ-260108010FW1 Pi/4DQPSK_2DH1_HOPP_Ant1_NTNV Pi/4DQPSK_2DH1_HOPP_Ant1_NTNV Page 30 of 51 Report No.: AiTSZ-260108010FW1 Pi/4DQPSK_2DH3_HOPP_Ant1_NTNV Pi/4DQPSK_2DH3_HOPP_Ant1_NTNV Page 31 of 51 Report No.: AiTSZ-260108010FW1 Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Pi/4DQPSK_2DH5_HOPP_Ant1_NTNV Page 32 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH1_HOPP_Ant1_NTNV 8DPSK_3DH1_HOPP_Ant1_NTNV Page 33 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH3_HOPP_Ant1_NTNV 8DPSK_3DH3_HOPP_Ant1_NTNV Page 34 of 51 Report No.: AiTSZ-260108010FW1 8DPSK_3DH5_HOPP_Ant1_NTNV 8DPSK_3DH5_HOPP_Ant1_NTNV Page 35 of 51 Report No.: AiTSZ-260108010FW1 6. Unwanted Emissions In Non-restricted Frequency Bands 6.1 Test Result 6.1.1 Ref Mode TX Type Frequency (MHz) Packet Type ANT Level of Reference (dBm) GFSK SISO 2402 DH5 1 4.41 2441 DH5 1 4.33 2480 DH5 1 4.10 Pi/4DQPSK SISO 2402 2DH5 1 2.14 2441 2DH5 1 2.08 2480 2DH5 1 1.7…

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Page 1 of 2 FCC ID: 2BULU-BIBOARDV1 Page 2 of 2 FCC ID: 2BULU-BIBOARDV1