2BC7H-BLEBluetooth Module

This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. Cet équipement doit être installé et utiliséavec une distance minimale de 20cm entre leradiateur & votre corps.

CFR 47 §2.911(d)(7) U.S Agent U.S. AGENT LETTER OF ATTESTATION Date: 2023-11-27 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID:2BC7H-BLE Shenzhen ZTW Model Science & Technology Co.,Ltd ( “the Applicant”) certifies that, as of the date of the filing of the application, Ohio Model Products LLC ( U.S. agent). is our designated U.S. agent for service of process for the above referenced FCC ID. Shenzhen ZTW Model Science & Technology Co.,Ltd (“the Applicant”)accepts to maintain an agent 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. Ohio Model Products LLC ( U.S. agent) accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: Ohio Model Products LLC Address: 4180 Fisher Rd, Columbus, OH 43228, United States FRN: 0034112680 Tel.: (614) 260-9540 Email: [email protected] Signed by (printed name): Ye Deng Signature: Shenzhen ZTW Model Science & Technology Co.,Ltd Add: 2/F, Block 1, GuanFeng Industrial Park, Jiuwei, Xixiang, Baoan, Shenzhen, Guangdong, China FRN: 0034352252 Tel: +86 755 29120026 E-mail: [email protected] Signed by (printed name): Hugo Huang Signature:

Shenzhen ZTW Model Science & Technology Co.,Ltd Add: 2/F, Block 1, GuanFeng Industrial Park, Jiuwei, Xixiang, Baoan, Shenzhen, Guangdong, China Tel: +86 755 29120026 Fax: +86 755 29120026 Email: [email protected] Attestation Letter Date: 2023-11-27 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: Our product Bluetooth Module, model: ZTW BP External BLE Module, ZTW External BLE Module, ZTW Airplane BLE Module, FCC ID:2BC7H-BLE, for marketing purpose, this product only supports BLE 1M. The other functions, bands and modes was disabled to use by manufacturer in the software, the end user has no capability to activate it. Sincerely, Printed Name: Hugo Huang Title: Sales Manager

QA-FR-171-A Shenzhen ZTW Model Science & Technology Co.,Ltd Add: 2/F, Block 1, GuanFeng Industrial Park, Jiuwei, Xixiang, Baoan, Shenzhen, Guangdong, China Tel: +86 755 29120026 Fax: +86 755 29120026 Email: [email protected] FCC Confidential Authorization Date: 2023-11-27 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID:2BC7H-BLE In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, (Shenzhen ZTW Model Science & Technology Co.,Ltd) hereby requests long-term confidential treatment of information accompanying this application as outlined below: • Block Diagram • Schematics • Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely, Signature: Printed Name: Hugo Huang Title: Sales Manager

China Certification ICT Co., Ltd (Dongguan) Report No.: CR230953362-EXP Page 1 of 3 EUT EXTERNAL PHOTOGRAPHS China Certification ICT Co., Ltd (Dongguan) Report No.: CR230953362-EXP Page 2 of 3 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230953362-EXP Page 3 of 3

China Certification ICT Co., Ltd (Dongguan) Report No.: CR230953362-INP Page 1 of 3 EUT INTERNAL PHOTOGRAPHS China Certification ICT Co., Ltd (Dongguan) Report No.: CR230953362-INP Page 2 of 3 Antenna China Certification ICT Co., Ltd (Dongguan) Report No.: CR230953362-INP Page 3 of 3

China Certification ICT Co., Ltd (Dongguan) Report No.: CR230953362-00A Page 52 of 55 5. RF EXPOSURE EVALUATION 5.1 Maximum Permissible Exposure (MPE) 5.1.1 Applicable Standard According to subpart 15.247(i)and subpart §1.1310, 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 Maximum Permissible Exposure (MPE) (§1.1310, §2.1091) (B) Limits for General Population/Uncontrolled Exposure Frequency Range (MHz) Electric Field Strength (V/m) Magnetic Field Strength (A/m) Power Density (mW/cm 2 ) Averaging Time (minutes) 0.3–1.34 614 1.63 *(100) 30 1.34–30 824/f 2.19/f *(180/f²) 30 30–300 27.5 0.073 0.2 30 300–1500 / / f/1500 30 1500–100,000 / / 1.0 30 f = frequency in MHz; * = Plane-wave equivalent power density; According to §1.1310 and §2.1091 RF exposure is calculated. Calculation formula: Prediction of power density at the distance of the applicable MPE limit S = PG/4R² = power density (in appropriate units, e.g. mW/cm 2 ); P = power input to the antenna (in appropriate units, e.g., mW); G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor, is normally numeric gain; R = distance to the center of radiation of the antenna (appropriate units, e.g., cm); Calculated Data: Frequency (MHz) Antenna Gain Conducted output power including Tune- up Tolerance Evaluation Distance (cm) Power Density (mW/cm 2 ) MPE Limit (mW/cm 2 ) (dBi) (numeric) (dBm)(mW) 2402-2480 2.64 1.84 -3.00 0.50 20.00 0.0002 1.0 Result: The device meet FCC MPE at 20 cm distance

Approval sheet Page 1 of 9 ASC_RFECA3216060A1T_V07 May. 2013 RFECA Series – RoHS Compliance CERAMIC ANTENNA Halogens Free Product 2.4 GHz ISM Band Working Frequency P/N: RFECA3216060A1T * Contents in this sheet are subject to change without prior notice. Add: No. 638 Meijing Road, Dalang Town, Dongguan City Guangdong Province China Approval sheet Page 2 of 9 ASC_RFECA3216060A1T_V07 May. 2013 FEATURES 1. Surface Mounted Devices with a small dimension of 3.2 X 1.6 X 0.6 mm 3 meet future miniaturization trend. 2. LTCC process. 3. High stability in Temperature / Humidity Change. 4. Superb performance to place on the middle of PCB edge and excellent peak/ average gain observed by field test application. APPLICATIONS 1 . ISM Band 2.4GHz applications. 2. Bluetooth.. CONSTRUCTION DIMENSIONS Figure Symbol Dimension (mm) L 3.10 ± 0.20 W 1.60 ± 0.20 T 0.60 ± 0.10 A 0.25 ± 0.20 PIN Connection 1 Feeding 2 Soldering terminal Approval sheet Page 3 of 9 ASC_RFECA3216060A1T_V07 May. 2013 SOLDER LAND PATTERN DESIGN Figure (Empty Space 8.0 mm x 3.0 mm) The limited size for ECA3216 is L>30mm and D>6mm Land Pattern TYPE 1 ELECTRONIC CHARACTERISTICS *N ote 1. Central Frequency should be defined after customers’ application approval. Item Specification Working Frequency Range 2.4GHz~2.4835GHz (Note-1) Gain 2.64 dBi (Typical) VSWR 2.1 max. Polarization Linear Azimuth Beamwidth Omni-directional Impedance 50Ω Approval sheet Page 4 of 9 ASC_RFECA3216060A1T_V07 May. 2013 Antenna on Test Board ( Thickness 0.8mm) A ntenna S11 on Test Board Antenna VSWR on Test Board -10.62 dB @ 2.40 GHz -19.34 dB @ 2.45 GHz -9.648 dB @ 2.50 GHz 1.756 @ 2.40 GHz 1.391 @ 2.45 GHz 1.986 @ 2.50 GHz Approval sheet Page 5 of 9 ASC_RFECA3216060A1T_V07 May. 2013 RADIATION PATTERN Radiation Pattern and Gain were dependent on measurement board design. The specification of RFECA3216060A1T antenna was measured based on the PCB size and installation position as shown in the below figure Test Board. Vertical Horizontal Y - Z Plane Average Gain= -1.511 dBi X Cut -40 -30 -20 -10 0 0 30 60 90 120 150 180 210 240 270 300 330 Peak Gain = -2.15 dBi Average Gain = -3.84 dBi X Cut -40 -30 -20 -10 0 0 30 60 90 120 150 180 210 240 270 300 330 Peak Gain= -1.82 dBi Average Gain=-5.33 dBi X - Z Plane Average Gain= -0.571 dBi X Cut -40 -30 -20 -10 0 0 30 60 90 120 150 180 210 240 270 300 330 Peak Gain= 1.02 dBi Average Gain= -2.68 dBi X Cut -40 -30 -20 -10 0 0 30 60 90 120 150 180 210 240 270 300 330 Peak Gain= 0.36 dBi Average Gain= -4.72 dBi X - Y Plane Average Gain= -1.166 dBi X Cut -40 -30 -20 -10 0 0 30 60 90 120 150 180 210 240 270 300 330 P eak Gain= -8.74 dBi Average Gain= -13.63dBi X Cut -40 -30 -20 -10 0 0 30 60 90 120 150 180 210 240 270 300 330 Peak Gain= 2.64dBi Average Gain=-1.42 dBi x Y Z x Y x Y Z X Z X Z Y Z Y Approval sheet Page 6 of 9 ASC_RFECA3216060A1T_V07 May. 2013 RELIABILITY TEST Test item Test condition / Test method Specification Solderability JIS C 0050-4.6 JESD22-B102D *Solder bath temperature：235 ± 5°C *Immersion time：2 ± 0.5 sec Solder：Sn3Ag0.5Cu for lead-free At least 95% of a surface of each terminal electrode must be covered by fresh solder. Leaching (Resistance to dissolution of metallization) IEC 60068-2-58 *Solder bath temperature：260 ± 5°C *Leaching immersion time：30 ± 0.5 sec Solder : SN63A Loss of metallization on the edges of each electrode shall not exceed 25%. Resistance to soldering heat JIS C 0050-5.4 *Preheating temperature：120~150°C, 1 minute. *Solder temperature：270±5°C *Immersion time：10±1 sec Solder：Sn3Ag0.5Cu for lead-free Measurement to be made after keeping at room temperature for 24±2 hrs No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Loss of metallization on the edges of each electrode shall not exceed 25%. Drop Test JIS C 0044 Customer’s specification. *Height：75 cm *Test Surface：Rigid surface of concrete or steel. *Times：6 surfaces for each units；2 times for each side. No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Vibration JIS C 0040 *Frequency：10Hz~55Hz~10Hz(1min) *Total amplitude：1.5mm *Test times：6hrs.(Two hrs each in three mutually perpendicular directions) No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Adhesive Strength of Termination JIS C 0051- 7.4.3 *Pressurizing force： 5N(≦0603)；10N(>0603) *Test time：10±1 sec No remarkable damage or removal of the termination. Approval sheet Page 7 of 9 ASC_RFECA3216060A1T_V07 May. 2013 Bending test JIS C 0051- 7.4.1 The middle part of substrate shall be pressurized by means of the pressurizing rod at a rate of about 1 mm/s per second until the deflection becomes 1mm/s and then pressure shall be maintained for 5±1 sec. Measurement to be made after keeping at room temperature for 24±2 hours No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Temperature cycle JIS C 0025 1. 30±3 minutes at -40°C±3°C, 2. 10~15 minutes at room temperature, 3. 30±3 minutes at +85°C±3°C, 4. 10~15 minutes at room temperature, Total 100 continuous cycles Measurement to be made after keeping at room temperature for 24±2 hrs No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. High temperature JIS C 0021 *Temperature：85°C±2°C *Test duration：1000+24/-0 hours Measurement to be made after keeping at room temperature for 24±2 hrs No mechanical damage. Electrical specification shall satisfy the descriptions in electrical characteristics under the operational temperature range within -40 ~ 85°C. Humidity (steady cond…

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China Certification ICT Co., Ltd (Dongguan) Report No.: CR230953362-00A-TSP TEST SETUP PHOTOGRAPHS Radiated Emission Below 1GHz View Radiated Emission Below 1GHz View China Certification ICT Co., Ltd (Dongguan) Report No.: CR230953362-00A-TSP Radiated Emission Above 1GHz View Radiated Emission Above 1GHz View