2BDDCBY-480BTThermal label printer

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. 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. To maintain compliance with FCC’ s RF Exposure guidelines, This equipment should be installed and operated with minimum 20cm distance between the radiator and your body: Use only the supplied antenna.

(Guangzhou BEEPRT Technology Co., LTD) (October 27, 2023) 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: 2BDDCBY-480BT) [Guangzhou BEEPRT Technology 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) Shen Hui (Guangzhou BEEPRT Technology Co., LTD) (October 27, 2023) 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: 2BDDCBY-480BT) [Guangzhou BEEPRT Technology 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) Shen Hui

Guangzhou BEEPRT Technology Co., LTD Model Difference Data：October 27, 2023 Product description: Thermal label printer Model name: BY-480BT, E70BT, E70BW, BY-482BT, BY-243BT, BY-426BT, BY- 245BT, SH70BT, SH70BW, XM740BT, XM740BW, DT643, DT645, DT646 Trade Name: N/A FCC ID: 2BDDCBY-480BT All the model are the same circuit and RF module, except model names . Regards Sincerely Client’s signature : Client’s name / title : Shen Hui（managert ） Contact information / address：Room 215, 222 Wenchuan Road, Huangpu District, Guangzhou

Guangzhou BEEPRT Technology Co., LTD (October 27, 2023) Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: CONFIDENTIALITY REQUEST FOR (Thermal label printer / BY-480BT, E70BT, E70BW, BY-482BT, BY-243BT, BY-426BT, BY-245BT, SH70BT, SH70BW, XM740BT, XM740BW, DT643, DT645, DT646 / FCC ID: 2BDDCBY- 480BT) 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: Shen Hui Title: manager

Guangzhou BEEPRT Technology Co., LTD (October 27, 2023) 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: Shen Hui Title: manager

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 4 Model: BY-480BT External Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 4 Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 4 of 4

FCC ID LABEL: Label Location: FCC ID: 2BDDCBY-480BT Model No.: BY-480BT 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.

Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 1 of 3 Model: BY-480BT Internal Photos Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 3 ANT Shenzhen CTB Testing Technology Co., Ltd. Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 3 of 3

FCC §15.247 (i), §2.1091 – RF Exposure FCC ID: 2BDDCBY-480BT Applied procedures / limit According to FCC §15.247(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. Limits for Occupational / Controlled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842 / f 4.89 / f (900 / f)* 6 30-300 61.4 0.163 1.0 6 300-1500 F/300 6 1500-100,000 5 6 Note: ƒ is frequency in MHz * = Power density limit is applicable at frequencies greater than 100 MHz Limits for General Population / Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/ cm 2 ) Averaging Time |E| 2 ,|H| 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-100,000 1.0 30 Note: f = frequency in MHz * = Plane-wave equivalent power density MPE PREDICTION Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 Where: S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna,R=20cm Test Result of RF Exposure Evaluation Modes& Channel Freq. (MHz) Tune up Produce power Maximu m peak output power (dBm) Output power to antenna (mW) Antenna Gain (numeric) Power Density (S) (mW/ cm2) Limit (mW / cm2 ) Result 2.4G WIFI 802.11b&2 473 14±1 15 31.6228 0.879 (-0.56dBi) 0.0055 1 Pass BLE GFSK&HC H 0±1 1 1.2589 0.879 (-0.56dBi) 0.0002 1 Pass EDR 8DPSK&H CH 0±1 1 1.2589 0.879 (-0.56dBi) 0.0002 1 Pass

ShenZhen Feasycom Technology Co.,Ltd www.feasycom.com -1- Bluetooth and WIFI antenna specification 1，Index Item Content Page Remark 1 Index 1 2 Spec Drawing 2‐3 3 Specification 4 4 Antenna On Test Board 5 5 Return Loss 5 6 Radiation Pattern 6 7 Gain and Efficiency 6 8 Bluetooth 2D Radiation Pattern 7 9 WIFI 2D Radiation Pattern 8 Document Type: 2.4GHZ & 5.8GHZ PCB antenna Document Version: V1.0 Release Date: 2019-12-11 ShenZhen Feasycom Technology Co.,Ltd Telephone: 86-755-27924639 www.feasycom.com ShenZhen Feasycom Technology Co.,Ltd www.feasycom.com -2- 2，Spec Drawing Unit：mm RF4 sheet thickness：0.8mm Top view ShenZhen Feasycom Technology Co.,Ltd www.feasycom.com -3- Bottom view ShenZhen Feasycom Technology Co.,Ltd www.feasycom.com -4- 3，Specification Product Number: 2.4GHZ FPC antenna Sample Photo: A. Electrical Characteristics Bluetooth Frequency 2400 ~ 2500 MHz WIFI Frequency（2.4GHZ） 2400 ~ 2500 MHz WIFI Frequency（5GHZ） 5180 ~ 5850 MHz S.W.R. <=3.0 Gain 0 dBi Efficiency ~ 30% Polarization Linear Impedance 50 Ohm B. Material & Mechanical Characteristics Material of Radiator copper C. Environmental Operation Temperature - 40°C ~ + 85°C Storage Temperature - 40°C ~ + 105°C ShenZhen Feasycom Technology Co.,Ltd www.feasycom.com -5- 4，Antenna On Test Board 5, Return Loss ShenZhen Feasycom Technology Co.,Ltd www.feasycom.com -6- 6，Radiation Pattern Radiation Pattern and Gain were dependent on measurement board design. The specification of coil antenna was measur ed based on the PCB size and installation position as shown in the below figure Test Board. 6.1，Gain and Efficiency Frequency Gain(dBi) Efficiency Frequency Gain(dBi) Efficiency 2400 -2.49 26.54 5100 -2.68 17.21 2410 -1.9 29.34 5200 -2.01 20.24 2420 -1.83 29.58 5300 -2.42 20.42 2430 -1.73 30.29 5400 -1.81 22.4 2440 -1.56 30.65 5500 -2.83 17.93 2450 -1.59 30.32 5600 -5.65 12.01 2460 -1.67 30.05 5700 -2.23 19.69 2470 -1.79 29.19 5800 -2.35 22.95 2480 -1.93 26.84 5900 -2.78 22.07 ShenZhen Feasycom Technology Co.,Ltd www.feasycom.com -7- 6.2，Bluetooth 2D Radiation Pattern Theta=90° Phi=0° ShenZhen Feasycom Technology Co.,Ltd www.feasycom.com -8- Phi=90° 6.3，WIFI 2D Radiation Pattern Theta=90° ShenZhen Feasycom Technology Co.,Ltd www.feasycom.com -9- Phi=0° Phi=90°

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: Thermal label printer FCC ID: 2BDDCBY-480BT Trademark: N/A Model Number: BY-480BT, E70BT, E70BW, BY-482BT, BY-243BT, BY-426BT, BY-245BT, SH70BT, SH70BW, XM740BT, XM740BW, DT643, DT645, DT646 Prepared For: Guangzhou BEEPRT Technology Co., LTD Address: Room 215, 222 Wenchuan Road, Huangpu District, Guangzhou Manufacturer: Guangzhou BEEPRT Technology Co., LTD Address: Room 215, 222 Wenchuan Road, Huangpu District, Guangzhou 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: Oct. 18, 2023 Sample tested Date: Oct. 18, 2023 to Oct. 26, 2023 Issue Date: Oct. 26, 2023 Report No.: CTB231025065RFX Test Standards FCC Part15.247 ANSI C63.10:2013 Test Results PASS Remark: This is Bluetooth radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB231025065RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 35 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ........................................................................................................................................ 3 2. TEST SUMMARY ........................................................................................................................... 4 3. MEASUREMENT UNCERTAINTY ................................................................................................. 5 4. PRODUCT INFORMATION AND TEST SETUP ............................................................................ 6 4.1 Product Information .......................................................................................................................... 6 4.2 Test Setup Configuration .................................................................................................................. 6 4.3 Support Equipment........................................................................................................................... 6 4.4 Channel List ..................................................................................................................................... 7 4.5 Test Mode ........................................................................................................................................ 7 4.6 Test Environment ............................................................................................................................. 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................................................... 8 5.1 Test Facility ...................................................................................................................................... 8 5.2 Test Instrument Used ....................................................................................................................... 8 6. AC POWER LINE CONDUCTED EMISSION ................................................................................ 10 6.1 Block Diagram Of Test Setup ......................................................................................................... 10 6.2 Limit ................................................................................................................................................ 10 6.3 Test procedure ............................................................................................................................... 10 6.4 Test Result ..................................................................................................................................... 12 7. RADIATED SPURIOUS EMISSION ............................................................................................. 14 7.1 Block Diagram Of Test Setup ......................................................................................................... 14 7.2 Limit ................................................................................................................................................ 14 7.3 Test procedure ............................................................................................................................... 15 7.4 Test Result ..................................................................................................................................... 16 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS ............................................... 23 8.1 Block Diagram Of Test Setup ......................................................................................................... 23 8.2 Limit ................................................................................................................................................ 23 8.3 Test procedure ............................................................................................................................... 23 8.4 Test Result ..................................................................................................................................... 24 9. COUDUCTED OUTPUT POWER ................................................................................................. 26 9.1 Block Diagram Of Test Setup ........................................................…

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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: Thermal label printer FCC ID: 2BDDCBY-480BT Trademark: N/A Model Number: BY-480BT, E70BT, E70BW, BY-482BT, BY-243BT, BY-426BT, BY-245BT, SH70BT, SH70BW, XM740BT, XM740BW, DT643, DT645, DT646 Prepared For: Guangzhou BEEPRT Technology Co., LTD Address: Room 215, 222 Wenchuan Road, Huangpu District, Guangzhou Manufacturer: Guangzhou BEEPRT Technology Co., LTD Address: Room 215, 222 Wenchuan Road, Huangpu District, Guangzhou 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: Oct. 18, 2023 Sample tested Date: Oct. 18, 2023 to Oct. 26, 2023 Issue Date: Oct. 26, 2023 Report No.: CTB231025067RFX Test Standards FCC Part15.247 ANSI C63.10:2013 Test Results PASS Remark: This is WIFI-2.4GHz band radio test report. Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB231025067RFX Report Tel: 4008-707-283 Web: http://www.ctb-lab.net Page 2 of 62 TABLE OF CONTENT Test Report Declaration Page 1. VERSION .......................................................................... 3 2. TEST SUMMARY ................................................................... 4 3. MEASUREMENT UNCERTAINTY ..................................................... 5 4. PRODUCT INFORMATION AND TEST SETUP .......................................... 6 4.1 Product Information .................................................................... 6 4.2 Test Setup Configuration ............................................................... 6 4.3 Support Equipment .................................................................... 6 4.4 Channel List .......................................................................... 7 4.5 Test Mode ............................................................................ 7 4.6 Test Environment ...................................................................... 7 5. TEST FACILITY AND TEST INSTRUMENT USED ....................................... 8 5.1 Test Facility ........................................................................... 8 5.2 Test Instrument Used .................................................................. 8 6. AC POWER LINE CONDUCTED EMISSION ............................................ 10 6.1 Block Diagram Of Test Setup .......................................................... 10 6.2 Limit ................................................................................ 10 6.3 Test procedure ....................................................................... 10 6.4 Test Result .......................................................................... 12 7. RADIATED SPURIOUS EMISSION ................................................... 14 7.1 Block Diagram Of Test Setup .......................................................... 14 7.2 Limit ................................................................................ 14 7.3 Test procedure ....................................................................... 15 7.4 Test Result .......................................................................... 16 8. BAND EDGE AND RF COUNDUCTED SPURIOUS EMISSIONS .......................... 38 8.1 Block Diagram Of Test Setup .......................................................... 38 8.2 Limit ................................................................................ 38 8.3 Test procedure ....................................................................... 38 8.4 Test Result .......................................................................... 39 9. COUDUCTED OUTPUT POWER ..................................................... 46 9.1 Block Diagram Of Test Setup .......................................................... 46 9.2 Limit ................................................................................ 46 9.3 Test procedure ....................................................................... 46 9.4 Test Result .......................................................................... 47 10. 6DB OCCUPIED BANDWIDTH ....................................................... 48 10.1 Block Diagram Of Test Setup ......................................................... 48 10.2 Limit ............................................................................... 48 10.3 Test procedure ...................................................................... 48 10.4 Test Result ......................................................................... 49 11. POWER SPECTRAL DENSITY ...................................................... 54 11.1 Block Diagram Of Test Setup ......................................................... 54 11.2 Limit ............................................................................... 54 11.3 Test procedure ...................................................................... 54 11.4 Test Result ......................................................................... 55 12. ANTENNA REQUIREMENT ......................................................... 60 13. EUT TEST SETUP PHOTOGRAPHS .................................................. 61 (Note: N/A means not applicable) Shenzhen CTB Testing Technology Co., Ltd. Report No.: CTB231025067RFX Rep…

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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: BY-480BT 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