2AXGO-DREAMDream

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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Dongguan Lezun Technology Co., Ltd Model Difference 2023-01-03 EUT NAME: Dream MODEL : Dream, Idea, Beyond, Fly, Action, Running, Forward, Excellent, Leap, Creation, Innovation FCC ID: 2AXGO-DREAM All the model are the same circuit and RF module, only for model name. Regards Sincerely Client’s signature: Client’s name / title : Leo Zheng / Manager Contact information / address: Room 301-401, Building 1, No. 15, East Second Street, Baiyun Front, Dalang Town, Dongguan, Guangdong, China

Dongguan Lezun Technology Co., Ltd 2023.01.03 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Dream Trademark: Lonzuer MODEL : Dream, Idea, Beyond, Fly, Action, Running, Forward, Excellent, Leap, Creation, Innovation FCC ID : 2AXGO-DREAM 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 - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Leo Zheng / Manager Contact information / address: Room 301-401, Building 1, No. 15, East Second Street, Baiyun Front, Dalang Town, Dongguan, Guangdong, China

Dongguan Lezun Technology Co., Ltd 2023.01.03 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing 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, Client’s signature: Client’s name / title : Leo Zheng / Manager Contact information / address: Room 301-401, Building 1, No. 15, East Second Street, Baiyun Front, Dalang Town, Dongguan, Guangdong, China

External Photos

Size:40*20mm Dream FCC ID: 2AXGO-DREAM 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. Label location

Internal Photos Antenna

RF EXPOSURE EVALUATION METHOD FCC ID: 2AXGO-DREAM Applicable standard： In accordance with FCC 47 CFR part 2 (2.1093) this device has been defined as a portable device which is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20 centimeters of the body of the user. Portable devices must be evaluated using the specified in FCC 47 CFR part 2 (2.1093) and ANSI/IEEEC95.1-1992. and had been tested in accordance with the measurement methods and procedures specified in IEEE 1528-2003. Per FCC KDB 447498 D01 v06, the 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances s 50 mm are determined by: SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(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 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 is applied to determine SAR test exclusion. Modulation Test Channel Output Power (dBm) Limit (dBm) GFSK Low 0.42 21 GFSK Middle -2.27 21 GFSK High -5.17 21 π/4DQPSK Low 0.42 21 π/4DQPSK Middle -2.31 21 π/4DQPSK High -5.16 21 8DPSK Low 0.39 21 8DPSK Middle -2.3 21 8DPSK High -5.17 21 max possible output power (PK,conducted)：0±1dBm 3.38dBi logarithmic terms convert to numeric result is nearly 2.18 1dBm=1.26mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.26/5*√2.402=0.391≤3.0 2441MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.26/5*√2.441=0.394≤3.0 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 1.26/5*√2.48=0.397≤3.0 Conclusion: 1. [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] * [√f(GHz)] < 3.0. 2. SAR Test Exclusion Thresholds is 3.0 for separation distance 5mm. Therefore, SAR test is not required.

1. Technical Information Note: Provide by manufacturer. 1.1. Manufacturer Manufacturer: SHANGHAI MOUNTAIN VIEW SILICON CO,. LTD Manufacturer Address: Suite 4C, Building 3, 1238 Zhangjiang Road, Pudong New District, Shanghai, China PRODUCT SPECIFICATION 2. Test Results 2.1. Applied Reference Documents Leading reference documents for testing: No. Identity Document Title 1 ANSI/IEEE Std 149-2008 IEEE Standard Test Procedures for Antennas 2.2. Test Conditions Test Environment Conditions： Relative Humidity: 25 ... 75 % Temperature: +10 °C to +30 °C 2.3. Test Results lists 2.3.1. Gain Frequency Gain(dBi) 2400MHz2.81 2410MHz2.74 2420MHz3.38 2430MHz2.73 2440MHz1.01 2450MHz1.26 2460MHz1.50 2470MHz1.49 2480MHz1.42 2490MHz0.36 2500MHz0.33 2.3.2. Return Loss/VSWR/Input Impedance Frequency Return Loss (dB) VSWR Input Impedance(Ω) 2400MHz -7.23 2.53 25.37 2440MHz -6.47 2.80 17.99 2450MHz -6.22 2.90 17.18 2480MHz -5.18 3.44 15.55 2500MHz -4.56 3.89 15.48 Annex A 1. Test Setup Annex B Figures 1. 2D Radiation Pattern Phi=0° Phi=90° Theta=90° 2. 3D Radiatioon Patterrn 2400MHz 2450MHz z z 3. Retturn Losss 2500MHzz 4. VSWR 5. Input Impedance Antenna Photo & Length (mm)

No.：BCTC/RF-EMC-005 Page 1 of 82 Edition：A.5 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2210763608E Applicant: Dongguan Lezun Technology Co., Ltd Product Name: Dream Model/Type Ref.: Dream Tested Date: 2022-10-20 to 2022-11-25 Issued Date: 2022-11-25 Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 2 of 82 Edition：A.5 FCC ID: 2AXGO-DREAM 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 BCTC Testing Co., Ltd, this report can’t be reproduced except in full. The tested sample(s) and the sample information are provided by the client. Product Name: Dream Trademark: Lonzuer Model/Type Ref.: Dream Idea, Beyond, Fly, Action, Running, Forward, Excellent, Leap, Creation, Innovation Prepared For: Dongguan Lezun Technology Co., Ltd Address: Room 301-401, Building 1, No. 15, East Second Street, Baiyun Front, Dalang Town, Dongguan, Guangdong, China Manufacturer: Dongguan Lezun Technology Co., Ltd Address: Room 301-401, Building 1, No. 15, East Second Street, Baiyun Front, Dalang Town, Dongguan, Guangdong, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2022-10-20 Sample tested Date: 2022-10-20 to 2022-11-25 Issue Date: 2022-11-25 Report No.: BCTC2210763608E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is Bluetooth Classic radio test report. Tested by: Approved by: Lei Chen/Project Handler Zero Zhou/Reviewer Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 3 of 82 Edition：A.5 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 8 4.4 Channel List .......................................................................................................... 9 4.5 Test Mode ............................................................................................................. 9 4.6 Table Of Parameters Of Text Software Setting ..................................................... 9 5. Test Facility And Test Instrument Used ............................................................... 10 5.1 Test Facility ......................................................................................................... 10 5.2 Test Instrument Used .......................................................................................... 10 6. Conducted Emissions .......................................................................................... 12 6.1 Block Diagram Of Test Setup .............................................................................. 12 6.2 Limit .................................................................................................................... 12 6.3 Test Procedure ................................................................................................... 12 6.4 EUT Operating Conditions .................................................................................. 12 6.5 Test Result .......................................................................................................... 13 7. Radiated Emissions ............................................................................................. 15 7.1 Block Diagram Of Test Setup .............................................................................. 15 7.2 Limit .................................................................................................................... 16 7.3 Test Procedure ................................................................................................... 17 7.4 EUT Operating Conditions .................................................................................. 18 7.5 Test Result .......................................................................................................... 18 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 22 8.1 Block Diagram Of Test Setup .............................................................................. 22 8.2 Limit .................................................................................................................... 22 8.3 Test Procedure ................................................................................................... 23 8.4 EUT Operating Conditions .................................................................................. 23 8.5 Test Result .......................................................................................................... 24 9. Conducted Emission ........................................................................................... 25 9.1 Block Diagram Of Test Setup .............................................................................. 25 9.2 Limit .................................................................................................................... 25 9.3 Test Procedure ................................................................................................... 25 9.4 Test Result .......................................................................................................... 26 10. 20 DB Bandwidth …

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Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 42 of 82 Edition：A.5 Band Edge(Hopping) NVNT 1-DH1 2480MHz Hopping Ref Band Edge(Hopping) NVNT 1-DH1 2480MHz Hopping Emission Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 43 of 82 Edition：A.5 Band Edge(Hopping) NVNT 2-DH1 2402MHz Hopping Ref Band Edge(Hopping) NVNT 2-DH1 2402MHz Hopping Emission Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 44 of 82 Edition：A.5 Band Edge(Hopping) NVNT 2-DH1 2480MHz Hopping Ref Band Edge(Hopping) NVNT 2-DH1 2480MHz Hopping Emission Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 45 of 82 Edition：A.5 Band Edge(Hopping) NVNT 3-DH1 2402MHz Hopping Ref Band Edge(Hopping) NVNT 3-DH1 2402MHz Hopping Emission Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 46 of 82 Edition：A.5 Band Edge(Hopping) NVNT 3-DH1 2480MHz Hopping Ref Band Edge(Hopping) NVNT 3-DH1 2480MHz Hopping Emission Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 47 of 82 Edition：A.5 10. 20 DB Bandwidth 10.1 Block Diagram Of Test Setup 10.2 Limit N/A 10.3 Test Procedure 1. Set RBW = 30kHz. 2. Set the video bandwidth (VBW) ≥ 3 x RBW. 3. Detector = Peak. 4. Trace mode = max hold. 5. Sweep = auto couple. 6. Allow the trace to stabilize. 7. Measure the maximum width of the emission that is constrained by the frequencies associated with the two outermost amplitude points (upper and lower frequencies) that are attenuated by 20 dB relative to the maximum level measured in the fundamental emission. . Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 48 of 82 Edition：A.5 10.4 Test Result Temperature： 26°C Relative Humidity： 54% Test Voltage ： DC 7.4V Remark N/A Modulation Test Channel Bandwidth(MHz) GFSK Low 1.019 GFSK Middle 1.03 GFSK High 1.042 π/4DQPSK Low 1.291 π/4DQPSK Middle 1.296 π/4DQPSK High 1.286 8DPSK Low 1.276 8DPSK Middle 1.28 8DPSK High 1.259 Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 49 of 82 Edition：A.5 Test Graphs -20dB Bandwidth NVNT 1-DH1 2402MHz -20dB Bandwidth NVNT 1-DH1 2441MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 50 of 82 Edition：A.5 -20dB Bandwidth NVNT 1-DH1 2480MHz -20dB Bandwidth NVNT 2-DH1 2402MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 51 of 82 Edition：A.5 -20dB Bandwidth NVNT 2-DH1 2441MHz -20dB Bandwidth NVNT 2-DH1 2480MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 52 of 82 Edition：A.5 -20dB Bandwidth NVNT 3-DH1 2402MHz -20dB Bandwidth NVNT 3-DH1 2441MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 53 of 82 Edition：A.5 -20dB Bandwidth NVNT 3-DH1 2480MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 54 of 82 Edition：A.5 11. Maximum Peak Output Power 11.1 Block Diagram Of Test Setup 11.2 Limit FCC Part15 (15.247), Subpart C Section Test Item Limit Frequency Range (MHz) Result 15.247(b)(1) Peak Output Power 0.125 watt or 21dBm 2400-2483.5 PASS 11.3 Test Procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 2MHz. VBW = 6MHz. Sweep = auto; Detector Function = Peak. 3. Keep the EUT in transmitting at lowest, medium and highest channel individually. Record the max value. Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 55 of 82 Edition：A.5 11.4 Test Result Temperature： 26°C Relative Humidity： 54% Test Voltage ： DC 7.4V Remark: N/A Modulation Test Channel Output Power (dBm) Limit (dBm) GFSK Low 0.42 21 GFSK Middle -2.27 21 GFSK High -5.17 21 π/4DQPSK Low 0.42 21 π/4DQPSK Middle -2.31 21 π/4DQPSK High -5.16 21 8DPSK Low 0.39 21 8DPSK Middle -2.3 21 8DPSK High -5.17 21 Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 56 of 82 Edition：A.5 Test Graphs Power NVNT 1-DH1 2402MHz Power NVNT 1-DH1 2441MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 57 of 82 Edition：A.5 Power NVNT 1-DH1 2480MHz Power NVNT 2-DH1 2402MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 58 of 82 Edition：A.5 Power NVNT 2-DH1 2441MHz Power NVNT 2-DH1 2480MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 59 of 82 Edition：A.5 Power NVNT 3-DH1 2402MHz Power NVNT 3-DH1 2441MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 60 of 82 Edition：A.5 Power NVNT 3-DH1 2480MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 61 of 82 Edition：A.5 12. Hopping Channel Separation 12.1 Block Diagram Of Test Setup 12.2 Limit Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400-2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 0.125W. 12.3 Test Procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 30kHz. VBW = 100kHz , Span = 2.0MHz. Sweep = auto; Detector Function = Peak. Trace = Max hold. 3. Allow the trace to stabilize. Use the marker-delta function to determine the separation between the peaks of the adjacent channels. The limit is specified in one of the subparagraphs of this Section Submit this plot. Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 62 of 82 Edition：A.5 12.4 Test Result Modulation Test Channel Separation (MHz) Limit(MHz) Result GFSK Low 1.004 0.679 PASS GFSK Middle 0.998 0.687 PASS GFSK High 0.998 0.695 PASS π/4DQPSK Low 1.002 0.861 PASS π/4DQPSK Middle 0.998 0.864 PASS π/4DQPSK High 0.992 0.857 PASS 8DPSK Low 1 0.851 PASS 8DPSK Middle 1 0.853 PASS 8DPSK High 1 0.839 PASS Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 63 of 82 Edition：A.5 Test Graphs CFS NVNT 1-DH1 2402MHz CFS NVNT 1-DH1 2441MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 64 of 82 Edition：A.5 CFS NVNT 1-DH1 2480MHz CFS NVNT 2-DH1 2402MHz Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 …

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Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 80 of 82 Edition：A.5 17. EUT Test Setup Photographs Conducted Measurement Photo Radiated Measurement Photos Report No.: BCTC2210763608E No.：BCTC/RF-EMC-005 Page 81 of 82 Edition：A.5