2BDPI-JSPMINIGuitar Amplifier

说明：MD-MINI中英文说明书（20230906） ERP：A07-006-017 尺寸：148*210mm，128克铜版纸 正反面印刷，折叠（中间线为折叠线不用印） 折叠线 折叠线 FCC Statement 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. 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication 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)(5)(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows: We, applicant Company Name: HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address: SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Phone: +86-13829999768 certify 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. FCC ID: 2BDPI-JSPMINI If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-06 Name / Title: Yanting Zhao / General Manager Company: HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address: SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Phone: +86-13829999768 Fax Number: N/A E-Mail: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication 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)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BDPI-JSPMINI MD-MINI We, applicant Company Name: HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address: SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Phone: +86-13829999768 certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-06 Name / Title: Yanting Zhao / General Manager Company: HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address: SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Phone: +86-13829999768 Fax Number: N/A E-Mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2BDPI-JSPMINI MD-MINI For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-12-06 Name / Title: Yanting Zhao / General Manager Company: HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address: SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Phone: +86-13829999768 Fax Number: N/A E-Mail: [email protected]

FCC ID: 2BDPI-JSPMINI Fig. 1 Fig. 2 FCC ID: 2BDPI-JSPMINI Fig. 3 Fig. 4 FCC ID: 2BDPI-JSPMINI Fig. 5 Fig. 6 FCC ID: 2BDPI-JSPMINI Fig. 7

_____________________________________________________________________________________________________ LABEL AND LOCATION (Size: L5.0cm x 3.0cm) Label Location

FCC ID: 2BDPI-JSPMINI Fig. 1 Fig. 2 Antenna FCC ID: 2BDPI-JSPMINI Fig. 3 Fig. 4 FCC ID: 2BDPI-JSPMINI Fig. 5 Fig. 6 FCC ID: 2BDPI-JSPMINI Fig. 7 Fig. 8

Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong RF Exposure evaluation Report Reference No. .................... : FCC ID. ............................................ : GTS20231018019-1-3 2BDPI-JSPMINI Compiled by ( position+printed name+signature) .. : File administrators Peter Xiao Supervised by ( position+printed name+signature) .. : Test Engineer Evan Ouyang Approved by ( position+printed name+signature) .. : Manager Jason Hu Date of issue ..................................... : Nov.22, 2023 Representative Laboratory Name : Shenzhen Global Test Service Co.,Ltd. Address ............................................. : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong,China Applicant’s name ............................ : HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address ............................................. : SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Test specification .......................... : Standard ........................................... : 47CFR §1.1310 47CFR §2.1093 KDB447498 D01 General RF Exposure Guidance v06 TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ....................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .................... : Guitar Amplifier Trade Mark ....................................... : N/A Manufacturer ..................................... : HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Model/Type reference ....................... : MD-MINI Listed Models ................................... : N/A Exposure category ............................ : General population/uncontrolled environment EUT Type .......................................... : Portable Hardware Version ............................ : N/A Software Version .............................. : N/A Rating ............................................... : DC 3.7V by battery Recharged by DC 5.0V Result ................................................ : PASS Report No.: GTS20231018019-1-3 Page 2 of 10 T E S T R E P O R T Test Report No. : GTS20231018019-1-3 Nov.22, 2023 ______________________________________________________________________________________________ Date of issue Equipment under Test : Guitar Amplifier Model /Type : MD-MINI Listed model : N/A Applicant : HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address : SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Manufacturer : HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address : SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Test Result: PASS The 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. Report No.: GTS20231018019-1-3 Page 3 of 10 Contents 1. S U M M A R Y .................................................................................. 4 1.1. EUT configuration ....................................................................................................................................... 4 1.2. Product Description .................................................................................................................................... 4 2. T E S T E N V I R O N M E N T ................................................................... 5 2.1. Address of the test laboratory ................................................................................................................... 5 2.2. Test Facility .................................................................................................................................................. 5 2.3. Environmental conditions .......................................................................................................................... 5 2.4. Statement of the measurement uncertainty ............................................................................................. 5 3 . M E T H O D O F M E A S U R EM E N T ......................................................... 6 3.1. Applicable Standard .................................................................................................................................... 6 3.2. Evaluation Method and Limit...................................................................................................................... 6 4. C O N D U C T ED P O W E R R E S U L T S ...................................................... 7 5. M A N U F A C T U R I N G T O L E R ANCE ...................................................... 8 6 . E V A L U A T I O N R E S U L TS ................................................................ 9 6.1. Standalone Evaluation ................................................................................................................................ 9 7. C O N C L U S I O N ............................................................................ 10 Report No.: GTS20231018019-1-3 Page 4 of 10 1. S U M M A R Y 1.1. EUT configuration The following peripheral devices and interface cables were connected during the measurement: ● - supplied by the manufacturer ○ - supplied …

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1)Antennas need space(MD-MINI&MD-MINI PRO) 2)13.2mm*4.6mm 3)Antennasize 3) Gain:1.6db Manufacturer:HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address:SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China 4)Bandwidth:150MHz 5)Directionaldiagram

FCCID: 2BDPI-JSPMINI 1 Case No. : GTS20231018019-1-2 Ambient Condition: 23 °C, 49 %RH, Atmos100.1Kpa, Test Date: 2023.11.6 Test Engineer: Evan ouyang Appendix B.1: DTS Bandwidth Test Result Test Mode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE Ant1 2402 0.620 2401.796 2402.416 0.5 PASS 2440 0.512 2439.788 2440.300 0.5 PASS 2480 0.512 2479.796 2480.308 0.5 PASS FCCID: 2BDPI-JSPMINI 2 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 FCCID: 2BDPI-JSPMINI 3 BLE_Ant1_2480 FCCID: 2BDPI-JSPMINI 4 Appendix B.2: Occupied Channel Bandwidth Test Result Test Mode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE Ant1 2402 1.0649 2401.587 2402.652 --- --- 2440 1.0635 2439.583 2440.647 --- --- 2480 1.1090 2479.542 2480.651 --- --- FCCID: 2BDPI-JSPMINI 5 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 FCCID: 2BDPI-JSPMINI 6 BLE_Ant1_2480 FCCID: 2BDPI-JSPMINI 7 Appendix B.3: Maximum conducted output power Test Result Peak Test Mode Antenna Frequency[MHz] Conducted Peak Powert[dBm] Conducted Limit[dBm] Verdict BLE Ant1 2402 1.51 ≤30 PASS 2440 2.62 ≤30 PASS 2480 2.10 ≤30 PASS FCCID: 2BDPI-JSPMINI 8 Appendix B.4: Maximum power spectral density Test Result Test Mode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE Ant1 2402 -18.8 ≤8.00 PASS 2440 -17.92 ≤8.00 PASS 2480 -18.91 ≤8.00 PASS FCCID: 2BDPI-JSPMINI 9 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 FCCID: 2BDPI-JSPMINI 10 BLE_Ant1_2480 FCCID: 2BDPI-JSPMINI 11 Appendix B.5: Band edge measurements Test Result Test Mode Antenna ChName Frequency[MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE Ant1 Low 2402 1.21 -48.76 ≤-18.79 PASS High 2480 1.95 -48.35 ≤-18.05 PASS FCCID: 2BDPI-JSPMINI 12 Test Graphs BLE_Ant1_Low_2402 BLE_Ant1_High_2480 FCCID: 2BDPI-JSPMINI 13 Appendix B.6: Conducted Spurious Emission Test Result Test Mode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict BLE Ant1 2402 Reference 0.61 0.61 --- PASS 30~1000 0.61 -37.89 ≤-19.39 PASS 1000~26500 0.61 -43.53 ≤-19.39 PASS 2440 Reference 2.35 2.35 --- PASS 30~1000 2.35 -54.71 ≤-17.65 PASS 1000~26500 2.35 -41.52 ≤-17.65 PASS 2480 Reference 1.74 1.74 --- PASS 30~1000 1.74 -57.19 ≤-18.26 PASS 1000~26500 1.74 -42.75 ≤-18.26 PASS FCCID: 2BDPI-JSPMINI 14 Test Graphs BLE_Ant1_2402_0~Reference BLE_Ant1_2402_30~1000 FCCID: 2BDPI-JSPMINI 15 BLE_Ant1_2402_1000~26500 BLE_Ant1_2440_0~Reference FCCID: 2BDPI-JSPMINI 16 BLE_Ant1_2440_30~1000 BLE_Ant1_2440_1000~26500 BLE_Ant1_2480_0~Reference FCCID: 2BDPI-JSPMINI 17 BLE_Ant1_2480_30~1000 BLE_Ant1_2480_1000~26500 FCCID: 2BDPI-JSPMINI 18 Appendix B.7: Emissions in Restricted Bands Test Result Test Mode Antenna ChName Frequency [MHz] Detector Freq [MHz] Result [dBm] Limit [dBm] Result [dBuV/m] Limit [dBuV/m] Verdict BLE Ant1 Low 2402 AV 2310.000 -48.89 ≤-41.20 46.31 ≤54 PASS AV 2378.120 -48.17 ≤-41.20 47.03 ≤54 PASS AV 2390.000 -48.35 ≤-41.20 46.85 ≤54 PASS Peak 2310.000 -39.36 ≤-21.20 55.84 ≤74 PASS Peak 2386.940 -38.18 ≤-21.20 57.02 ≤74 PASS Peak 2390.000 -41.08 ≤-21.20 54.12 ≤74 PASS High 2480 AV 2483.500 -48.21 ≤-41.20 46.99 ≤54 PASS AV 2499.040 -47.93 ≤-41.20 47.27 ≤54 PASS AV 2500.000 -48.05 ≤-41.20 47.15 ≤54 PASS Peak 2483.500 -36.94 ≤-21.20 58.26 ≤74 PASS Peak 2483.520 -36.94 ≤-21.20 58.26 ≤74 PASS Peak 2500.000 -40.36 ≤-21.20 54.84 ≤74 PASS Note： 1. The Antenna Gain is compensated in the graph. 2. The limit in dBm for average detector is conversion from 54dBuV/m, according to 15.209(a). The limit in dBm for peak detector is 20dB above the limit of average detector in dBm. FCCID: 2BDPI-JSPMINI 19 Test Graphs BLE_Ant1_Low_2402_AV BLE_Ant1_Low_2402_Peak FCCID: 2BDPI-JSPMINI 20 BLE_Ant1_High_2480_AV BLE_Ant1_High_2480_Peak

Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ..................... : FCC ID............................................. : GTS20231018019-1-2 2BDPI-JSPMINI Compiled by ( position+printed name+signature) . : File administrators Peter Xiao Supervised by ( position+printed name+signature) . : Test Engineer Evan Ouyang Approved by ( position+printed name+signature) . : Manager Jason Hu Date of issue .................................... : Nov.22, 2023 Representative Laboratory Name . : Shenzhen Global Test Service Co.,Ltd. Address ............................................ : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong,China Applicant’s name ............................ : HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address ............................................ : SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Test specification ........................... : Standard ........................................... : FCC Part 15.247 TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ...................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : Guitar Amplifier Trade Mark ....................................... : N/A Manufacturer .................................... : HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Model/Type reference ...................... : MD-MINI Listed Models .................................. : N/A Modulation Type ............................... : GFSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version ............................ : N/A Software Version .............................. : N/A Rating ............................................... : DC 3.7V by battery Recharged by DC 5.0V Result ............................................... : PASS Report No.: GTS20231018019-1-2 Page 2 of 24 T E S T R E P O R T Test Report No. : GTS20231018019-1-2 Nov.22, 2023 ______________________________________________________________________________________________ Date of issue Equipment under Test : Guitar Amplifier Model /Type : MD-MINI Listed model : N/A Applicant : HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address : SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Manufacturer : HUIZHOU JUSTPRO MUSICAL INSTRUMENTS CO., LIMITED Address : SHIKENGZAI DIDUAN BLK, DANSHUI ST, FLAT 8, 10 FL, SHENDA FORTUNE BLDG., HUIYANG DIST, China Test Result: PASS The 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. Report No.: GTS20231018019-1-2 Page 3 of 24 Contents 1. TEST STANDARDS ......................................................................................................................................... 4 2. SUMMARY ....................................................................................................................................................... 5 2.1. General Remarks ................................................................................................................................... 5 2.2. Product Description ................................................................................................................................ 5 2.3. Equipment Under Test ........................................................................................................................... 6 2.4. Short description of the Equipment under Test (EUT) ........................................................................... 6 2.5. EUT operation mode .............................................................................................................................. 6 2.6. Block Diagram of Test Setup ................................................................................................................. 6 2.7. EUT Exercise Software .......................................................................................................................... 7 2.8. Special Accessories ............................................................................................................................... 7 2.9. External I/O Cable .................................................................................................................................. 7 2.10. Related Submittal(s) / Grant (s) ........................................................................................................... 7 2.11. Modifications ........................................................................................................................................ 7 3. TEST ENVIRONMENT ..................................................................................................................................... 8 3.1. Address of the test laboratory ................................................................................................................ 8 3.2. Test Facility .................................................................................................…

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FCC ID: 2BDPI-JSPMINI _______________________________________________________________________________________________ Page 1 of 2 1. TEST SETUP PHOTOGRAPHS 1.1. Photo of Radiated Emissions Measurement Fig. 1 Fig. 2 FCC ID: 2BDPI-JSPMINI _______________________________________________________________________________________________ Page 2 of 2 Photo of Conducted Emission Measurement Fig. 3