2BUG8-VBT52832R1Bluetooth module

V 1.0.0 Datasheet Copyright© Visualite Technology Enterprise Bluetooth LE Module V BT52832R1 (ShenZhen)LTD Visualite 02 VBT52832R1 Datasheet Version Note VersionDetailsContributor(s)DateNotes 1.0.0First editMichelle2025.12.01 Part Numbers ModelHardware Code VBT52832R1 1Y32AI VBT52832R2 2Y32AI VBT52832R3 3Y32AI Visualite V TB52832R1 -nRF52832 The VTB52832R1 is an RF transceiver using the nRF52832 which has an ARM core Cortex-M4F, the MCU has a faster operating speed, with the core running at up to 64Mhz. 512KB of FLASH program space, 64KB of RAM and other powerful supporting resources. It is suitable for low-power systems, ultra-low sleep current and low power consumption during operation. Fully-certified, leads to 30 I/O ports, cost-effective Bluetooth 5.4 module Tel(0755)-8401-2312(822) E-mail [email protected] Copyright© Visualite Technology Enterprise(ShenZhen)LTD APPLICATION CERTIFICATION Smart Buildings Consumer Electronics Intelligent Medical care Security Equipment Automotive Equipment Smart Agriculture FEATURES Bluetooth 5.4Fully certifiedLeads to 30 I/O portsHigh quality-price ratio KEY PARAMETER Chip Model Module Size Flash Receiving Sensitivity Current(TX) 20×12×2.3 nRF528321 mm 512KB -96dBm 0dBm-5.3mA Antenna GPIO RAM Transmission Power Current(RX) PCB/Ceramic/IPEX 30 64KB -40 ~ +4dBm 5.4mA VT52832R1-nRF52832 03 Visualite VBT52832R1 Dtasheet 11.Storage Conditions 12.Handling Conditions INDEX 1.Block Diagram05 2.Electrical Specification 05 3.Pin Description 06 4.Pin Definition 06 07 5.Mechanical Drawing 08 6.Electrical Schematic 09 7.PCB Layout 09 8.Reflow and Soldering 10 9.Package Information 11 10.FCC warning 14 14 14.Copyright Statement 15.Related Documents 15 15 13.Quality 14 Tel(0755)-8401-2312(822) E-mail [email protected] Copyright© Visualite Technology Enterprise(ShenZhen)LTD 04 Visualite VBT52832R1 Dtasheet BLOCK DIAGRAM 1 2 ELECTRICAL SPECIFICATION Working Voltage Working Temperature Transmission Power Current(RX) Current(TX) Module Dimension Quantity of IO Port To ensure RF work, supply voltage suggest not lower than 2.3V Storage temperature is -40~+125 Configurable RF receiving current under 1Mbps pattern RF transmission current under 0dBm pattern 1.7V-3.6V -40~+85 -40 ~ +4dBm 5.4mA 5.3mA 20*12*2.3mm 30 ParametersValueNotes Tel(0755)-8401-2312(822) E-mail [email protected] Copyright© Visualite Technology Enterprise(ShenZhen)LTD 05 Visualite VBT52832R1 Datasheet 3 4 PIN DESCRIPTION PCB Antenna Ceramic Antenna IPEX Antenna PIN DEFINITION 12 1/2/13/25 38 37 3-9/16-24/26-36/39-41 VCC GND SWDIO SWCLK P0.00 to P0.31 Power source Ground Burn data pins Burn-in Clock Pins GPIOs, of which P0.02, P0.03, P0.04, P0.05, P0.28, P0.29, P0.30, P0.31 are analog input pins that can be used as ADCs VCC Ground SWDIO SWCLK GPIO Pin NumberSymbolTypeDefinition Tel(0755)-8401-2312(822) E-mail [email protected] Copyright© Visualite Technology Enterprise(ShenZhen)LTD 06 VBT52832R1 Datasheet Visualite PCB Antenna Ceramic Antenna IPEX Antenna 5 MECHANICAL DRAWING Tel(0755)-8401-2312(822) E-mail [email protected] Copyright© Visualite Technology Enterprise(ShenZhen)LTD 07 VBT52832R 1 Datasheet Default unitmm Default tolerance±0.15 NoticeThe recommended pad size is 1.7*0.6mm with a pad extension of 0.5mm Visualite 08 6 ELECTRICAL SCHEMATIC NoticeBefore placing an order, please confirm the specific configuration required with the salesperson. Tel VBT52832R1 Visualite Datasheet (0755)-8401-2312(822) E-mail [email protected] Copyright© Visualite Technology Enterprise(ShenZhen)LTD 3) For module SMT, it is recommended to make the steel mesh thicker by 0.13-0.15mm, and then expand the pin length by 1-1.3mm; 4) After opening, if the entire package is not used at once, it should be stored in a vacuum to prevent long-term exposure to air, which can cause moisture absorption and pad oxidation. If there is a gap of 7 to 30 days before reuse, it is recommended to bake the tape at 65-70°C for 24 hours without unrolling it before returning to SMT. 5) ESD protection measures should be implemented before using SMT. 7 8 PCB LAYOUT REFLOW AND SOLDERING 09 There should be no GND plane or metal cross wiring in the module antenna area, and no components should be placed nearby. It is best to make a hollow or clear area, or place it on the edge of the PCB board. The reference example is as follows: Layout Notes 1)The module's antenna area should be completely clear of any metal obstructions to avoid affecting antenna performance (as shown in the diagram). 2)Outside the module's antenna area, try to maintain a solid copper pour to minimize interference from the mainboard signal lines or other sources. 3)A clear area of at least 4mm should surround the module's antenna (including its casing) to reduce interference with the antenna. 4)Ensure good grounding for components to minimize parasitic induc- tance. 5)Do not place copper under the module's antenna to prevent interfer- ence with signal radiation, which could affect transmission distance. 6)The antenna should be kept away from other circuits to maintain radiation efficiency and avoid impacting the normal operation of other circuits. 7)Position the module as close to the edge of the circuit board as possible, away from other circuitry. 8) It is recommended to use a ferrite bead for isolation when connecting the module to the power supply. Notice: It is strongly recommended to use the first design method. The module antenna design is debugged according to the first wiring. 1) Perform SMT according to the reflow oven temperature profile provided below, with a maximum temperature of 260°C; 2) Follow IPC/JEDEC standards; Peak temperature: < 260°C; Number of reflows: ≤2 times; For SMT involving double-sided placement, it is recommended that the module side undergoes reflow soldering only once. For any special processes, please contact our company. Tel VBT52832R1 Visualite Datasheet (0755)-8401-…

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FCC ID: 2BUG8-VBT52832R1 Fig. 1 Fig. 2 FCC ID: 2BUG8-VBT52832R1 Fig. 3 Fig. 4 FCC ID: 2BUG8-VBT52832R1 Fig. 5 Fig. 6 FCC ID: 2BUG8-VBT52832R1 Fig. 7 Fig. 8 FCC ID: 2BUG8-VBT52832R1 Fig. 9

FCC ID: 2BUG8-VBT52832R1 _______________________________________________________________________________________________ Page 1 of 2 1. TEST SETUP PHOTOGRAPHS Photo of Radiated Emissions Measurement Fig. 1 Fig. 2 FCC ID: 2BUG8-VBT52832R1 _______________________________________________________________________________________________ Page 2 of 2 Photo of Conducted Emission Measurement Fig. 3 Fig. 4

Approval sheet Page 1 of 9 ASC_RFANT5220110A0T_V13 Sep. 2012 MULTILAYER CERAMIC ANTENNA RFANT Pb free Series – RoHS Compliance Halogens Free Product 2.4 GHz ISM Band Working Frequency P/N: RFANT5220110A0T *Contents in this sheet are subject to change without prior notice. Approval sheet Page 2 of 9 ASC_RFANT5220110A0T_V13 Sep. 2012 FEATURES 1. Surface Mounted Devices with a small dimension of 5.2 x 2.0 x 1.1 mm 3 meet future miniaturization trend. 2. Embedded and LTCC (Low Temperature Co-fired Ceramic) technology is able to future integrate with system design as well as beautifying the housing of final product. 3. High Stability in Temperature / Humidity Change APPLICATIONS 1. Bluetooth 2. Wireless LAN 3. HormRF 4. ISM band 2.4GHz wireless applications DESCRIPTION Walsin Technology Corporation develops a new ceramic embedded antenna specified for 2.4 GHz ISM Band application, as shown in below “CONSTRUCTION”. Both of Wireless LAN IEEE 802.11b and Bluetooth TM typically located on this unlicensed frequency band which range covers from 2.4GHz to 2.4835GHz. To fulfil the friendly usage for antenna, this antenna has been designed to a typical 150MHz bandwidth through Walsin’s advanced LTCC (Low Temperature Co-fired Ceramic) technology and superior product design via 3D EM Simulation Skill. This antenna has a rectangular ceramic body with a tiny dimension of 5.2x 2.0 x 1.1 mm 3 meet the future SMT automation and miniaturization requirements on modern portable devices. CONSTRUCTION Identification mark Soldering terminal W T C W T C Feeding Identification mark Soldering terminal W T C W T C Feeding DIMENSIONS Figure Symbol Dimension L 5.20 ± 0.20 mm W 2.00 ± 0.20 mm T 1.15 ± 0.10 mm A 0.40 ± 0.25 mm Approval sheet Page 3 of 9 ASC_RFANT5220110A0T_V13 Sep. 2012 SOLDER LAND PATTERN DESIGN Figure ELECTRICAL CHARACTERISTICS RFANT5220110A0T Specification Working Frequency Range 2.4 GHz ～ 2.5GHz Gain 3.00 dBi (Typical) VSWR 2 max. Polarization Linear Azimuth Bandwidth Omni-directional Impedance 50Ω Rated Power (max.) 3 Watts Maximum Input Power 5 Watts for 5 minutes Operation Temperature -40 ̊C ~ +85 ̊C Re mark: The specification is defined based on the test board dimension as in below Approval sheet Page 4 of 9 ASC_RFANT5220110A0T_V13 Sep. 2012 Antenna on Test Board ( FR4 Thickness 0.8mm) Antenna S11 on Test Board Bandwidth >150MHzBandwidth >150MHz Empty Area Empty Area 18x9 mm 50Ω ΩΩ ΩFeed line GROUND 30x18 mm 1mm 3.3mm 1.5mm WTC 2.5mm 18mm Empty Area Empty Area 18x9 mm 50Ω ΩΩ ΩFeed line GROUND 30x18 mm 1mm 3.3mm 1.5mm WTC 2.5mm 18mm Approval sheet Page 5 of 9 ASC_RFANT5220110A0T_V13 Sep. 2012 RADIATION PATTERN Radiation Pattern and Gain were dependent on measure ment board design. The specification of RFANT5220110A0T 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= -0.82 dBi Peak Gain = 1.69 dBi Average Gain =-3.22 dBi Peak Gain= -5.42 dBi Average Gain=-8.98 dBi X - Z Plane Average Gain=-0.91 dBi Peak Gain= -5.97 dBi Average Gain=-3.24dBi Peak Gain= 3.00 dBi Average Gain= -8.61 dBi X - Y Plane Average Gain= -0.68 dBi Peak Gain= -5.97 dBi Average Gain=-3.12 dBi Peak Gain= 2.59 dBi Average Gain= -9.24 dBi Y Z WTC X Y Z WTC X Y Z WTC X Y Z WTC X Y Z WTC X Y Z WTC X z Y z Y z X z X X Y X Y Empty Area GROUND 30x18 mm WTC X Y Z Empty Area GROUND 30x18 mm WTC X Y Z X Y Z Approval sheet Page 6 of 9 ASC_RFANT5220110A0T_V13 Sep. 2012 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. Samples shall satisfy electrical specification after test. Loss of metallization on the edges of each electrode shall not exceed 25%. Drop Test JIS C 0044 *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. Samples shall satisfy electrical specification after test. 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. 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. Samples shall satisfy electrical specification after test. Approval sheet Page 7 of 9 ASC_RFANT5220110A0T_V13 Sep. 2012 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. Samples shall satisfy electrical specification after test. 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. Samples shall satisfy electrical specification after test. 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. S…

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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............................................. : GTS20251127013-1-01 2BUG8-VBT52832R1 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 .................................... : Dec.23, 2025 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 ............................ : Visualite Technology Enterprise Limited Address ............................................ : RM 503, Block A, 5/F Proficient industrial Centre 6 Wang Kwun Road kowloon Bay Hong Kong, 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 ..................... : Bluetooth module Trade Mark ....................................... : N/A Manufacturer .................................... : Visualite Technology Enterprise Limited Model/Type reference ...................... : VBT52832R1 Listed Models .................................. : N/A Modulation Type ............................... : GFSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version ............................ : N/A Software Version .............................. : N/A Rating ............................................... : DC 1.7-3.6V Result ............................................... : PASS Report No.:GTS20251127013-1-01 Page 2 of 38 T E S T R E P O R T Test Report No. : GTS20251127013-1-01 Dec.23, 2025 ____________________________________________________________________________________________ Date of issue Equipment under Test : Bluetooth module Model /Type : VBT52832R1 Listed model : N/A Applicant : Visualite Technology Enterprise Limited Address : RM 503, Block A, 5/F Proficient industrial Centre 6 Wang Kwun Road kowloon Bay Hong Kong, China Manufacturer : Visualite Technology Enterprise Limited Address : RM 503, Block A, 5/F Proficient industrial Centre 6 Wang Kwun Road kowloon Bay Hong Kong, 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.:GTS20251127013-1-01 Page 3 of 38 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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FCCID:2BUG8-VBT52832R1 1 Case No. : GTS20251127013-1-01 Ambient Condition: 23 °C, 49 %RH According Standard: ■Part15C Test Date: 2025.12.09-2025-12.22Test Engineer: Evan ouyang AppendixA.1: DTS Bandwidth Test Result TestMode Antenna Freq(MHz) DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE Ant1 2402 0.676 2401.660 2402.336 0.5 PASS 2440 0.688 2439.664 2440.352 0.5 PASS 2480 0.688 2479.668 2480.356 0.5 PASS FCCID:2BUG8-VBT52832R1 2 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 BLE_Ant1_2480 FCCID:2BUG8-VBT52832R1 3 FCCID:2BUG8-VBT52832R1 4 AppendixA.2: Occupied Channel Bandwidth Test Result TestMode Antenna Freq(MHz) OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE Ant1 2402 1.0420 2401.5075 2402.5495 --- --- 2440 1.0502 2439.5054 2440.5556 --- --- 2480 1.0476 2479.5119 2480.5595 --- --- FCCID:2BUG8-VBT52832R1 5 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 BLE_Ant1_2480 FCCID:2BUG8-VBT52832R1 6 FCCID:2BUG8-VBT52832R1 7 AppendixA.3: Maximum conducted output power Test Result Peak TestMode Antenna Freq(MHz) Conducted Peak Powert[dBm] Conducted Limit[dBm] Verdict BLE Ant1 2402 0.52 ≤30 PASS 2440 1.17 ≤30 PASS 2480 0.84 ≤30 PASS . FCCID:2BUG8-VBT52832R1 8 AppendixA.4: Maximum power spectral density Test Result TestMode Antenna Freq(MHz) Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE Ant1 2402 -20.05 ≤8.00 PASS 2440 -18.45 ≤8.00 PASS 2480 -18.74 ≤8.00 PASS FCCID:2BUG8-VBT52832R1 9 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 BLE_Ant1_2480 FCCID:2BUG8-VBT52832R1 10 FCCID:2BUG8-VBT52832R1 11 AppendixA.5:Band edge measurements Test Result TestMode Antenna ChName Freq(MHz) RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE Ant1 Low 2402 -1.71 -48.5 ≤-21.71 PASS High 2480 -0.31 -47.84 ≤-20.31 PASS FCCID:2BUG8-VBT52832R1 12 Test Graphs BLE_Ant1_Low_2402 BLE_Ant1_High_2480 FCCID:2BUG8-VBT52832R1 13 AppendixA.6:Conducted Spurious Emission Test Result TestMode Antenna Freq(MHz) FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict BLE Ant1 2402 Reference -1.85 -1.85 --- PASS 30~1000 -1.85 -60.69 ≤-21.85 PASS 1000~26500 -1.85 -45.77 ≤-21.85 PASS 2440 Reference -0.19 -0.19 --- PASS 30~1000 -0.19 -60.14 ≤-20.19 PASS 1000~26500 -0.19 -37.99 ≤-20.19 PASS 2480 Reference -0.51 -0.51 --- PASS 30~1000 -0.51 -60.59 ≤-20.51 PASS 1000~26500 -0.51 -47.96 ≤-20.51 PASS FCCID:2BUG8-VBT52832R1 14 Test Graphs BLE_Ant1_2402_0~Reference BLE_Ant1_2402_30~1000 BLE_Ant1_2402_1000~26500 FCCID:2BUG8-VBT52832R1 15 BLE_Ant1_2440_0~Reference BLE_Ant1_2440_30~1000 FCCID:2BUG8-VBT52832R1 16 BLE_Ant1_2440_1000~26500 BLE_Ant1_2480_0~Reference BLE_Ant1_2480_30~1000 FCCID:2BUG8-VBT52832R1 17 BLE_Ant1_2480_1000~26500 FCCID:2BUG8-VBT52832R1 18 AppendixA.7: Duty Cycle Test Result TestMode Antenna Freq(MHz) ON Time [ms] Period [ms] X DC [%] Duty Cycle Factor[dB] 1/T Factor[KHz] BLE Ant1 2402 0.10 0.62 0.1613 16.13 7.92 10.00 2440 0.10 0.62 0.1613 16.13 7.92 10.00 2480 0.10 0.62 0.1613 16.13 7.92 10.00 FCCID:2BUG8-VBT52832R1 19 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 BLE_Ant1_2480 FCCID:2BUG8-VBT52832R1 20 FCCID:2BUG8-VBT52832R1 21 AppendixA.8:Emissions in Restricted Bands Test Result TestMode Antenna ChName Freq (MHz) Detector Freq [MHz] Result [dBm] Limit [dBm] Result [dBuV/m] Limit [dBuV/m] Verdict BLE Ant1 Low 2402 AV 2310.000 -49.29 ≤-41.20 45.91 ≤54 PASS AV 2388.935 -48.82 ≤-41.20 46.38 ≤54 PASS AV 2390.000 -48.92 ≤-41.20 46.28 ≤54 PASS Peak 2310.000 -41.42 ≤-21.20 53.78 ≤74 PASS Peak 2343.155 -38.6 ≤-21.20 56.60 ≤74 PASS Peak 2390.000 -40.76 ≤-21.20 54.44 ≤74 PASS High 2480 AV 2483.500 -48.1 ≤-41.20 47.10 ≤54 PASS AV 2483.520 -48.1 ≤-41.20 47.10 ≤54 PASS AV 2500.000 -48.57 ≤-41.20 46.63 ≤54 PASS Peak 2483.500 -31.49 ≤-21.20 63.71 ≤74 PASS Peak 2483.600 -29.16 ≤-21.20 66.04 ≤74 PASS Peak 2500.000 -40.93 ≤-21.20 54.27 ≤74 PASS Note： 1. The Antenna Gain is compensated in the graph. 2. The Duty Cycle Factor and RBW Factor is compensated in the graph. 3. 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:2BUG8-VBT52832R1 22 Test Graphs BLE_Ant1_Low_2402_AV BLE_Ant1_Low_2402_Peak BLE_Ant1_High_2480_AV FCCID:2BUG8-VBT52832R1 23 BLE_Ant1_High_2480_Peak

2.4G-2.48G Band Onboard PIFA antenna test report SPECIFICATIONS Frequency（MHz）2400-2480 Peak Gain（dBi） 2.50 Average Gain（dBi）＞-4 VSWR＜3.2 Impedance（Ω）50Ω Antenna TypePlannar Inverted F Antenna on board Model VBT52832R1 Test environment: CStechnology darkroom test system Z X Y Physical object and physical size of the antenna Visualite Technology Enterprise(ShenZhen)LTD AddressNO. 7, BEIGUANG INDUSTRIAL, LIANGBAI ROAD, EGONGLING VILLAGE, PINGHU TOWN, LONGGANSHENZHEN 518111 CHINA Antenna passive S parameter： VSWRReturnLoss and Smith Chart Frequency（MHz Antenna efficiency and gain ）Gain（dBi）Effciency（%）AverageGain（dBi）Efficiency（dB） 24001.43359.329%-2.717-2.267 24100.92751.861%-3.416-2.852 24200.82952.112%-3.166-2.831 24300.88149.299%-3.258-3.072 24401.19250.672%-3.144-2.952 24501.68853.067%-2.735-2.752 24602.19459.423%-2.276-2.260 24702.11856.680%-2.438-2.466 24802.49961.727%-2.112-2.095 Average1.52954.908%-2.806-2.616 Peak2.49961.727%-2.112-2.095 Antenna 2440MHz 2D-Theta Pattern Antenna 2440MHz 2D-Phi Pattern Antenna 2400MHz 3D Antenna 2440MHz 3D Antenna 2480MHz 3D

Manufacturer Visualite Technology Enterprise(ShenZhen)LTD Address NO. 7, BEIGUANG INDUSTRIAL, LIANGBAI ROAD, EGONGLING VILLAGE, PINGHU TOWN, LONGGANSHENZHEN 518111 CHINA Model VBT52832R1 Antenna type Linear antenna Antenna Gain 2.50dBi for 2.4G 1.Test equipment and conditions: 1.1.Network Analyzer 1.2.Communication test equipment 1.3.Test system 1.4.Matching circuit 2.Test Data: 2.1. Standing wave ratio 2.2.Efficiency Fred (MHz) Effi (%) Effi (%) Gain (dBi) UHIS (%) DHIS (%) 2400 44.38 -2.79 2.26 40.28 13.32 2410 44.63 -2.46 2.16 42.42 13.54 2420 44.94 -2.12 2.17 40.96 14.77 2430 44.27 -2.70 2.40 43.24 15.23 2440 44.75 -2.39 2.00 40.71 15.79 2450 44.82 -1.83 2.50 41.19 16.18 2460 44.28 -2.63 2.13 42.39 18.25 2470 44.49 -2.34 2.44 41.78 18.80 2480 45.08 -2.23 2.00 40.89 19.05 2490 44.21 -2.68 2.25 43.21 19.23 2500 44.46 -2.32 2.11 40.44 19.62 2.3.Directivity diagram 3.Antenna drawing(MM):

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. ......................................... : GTS20251127013-1-02 2BUG8-VBT52832R1 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 .................................... : Dec.23, 2025 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 Applicant’s name ............................ : Visualite Technology Enterprise Limited Address ............................................ : RM 503, Block A, 5/F Proficient industrial Centre 6 Wang Kwun Road kowloon Bay Hong Kong, China Test specification ........................ : Standard ........................................ : 47CFR §1.1310 Basis and purpose 47CFR §2.1091 Radiofrequency radiation exposure evaluation: mobile devices 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 .................. : Bluetooth module Trade Mark .................................... : N/A Manufacturer ................................. : Visualite Technology Enterprise Limited Model/Type reference ................... : VBT52832R1 Listed Models .............................. : N/A Hardware Version ........................ : N/A Software Version ........................... : N/A Rating ............................................ : DC 1.7-3.6V Result ............................................ : PASS Report No.:GTS20251127013-1-02 Page 2 of 11 T E S T R E P O R T Test Report No. : GTS20251127013-1-02 Dec.23, 2025 ______________________________________________________________________________________________ Date of issue Equipment under Test : Bluetooth module Model /Type : VBT52832R1 Listed model : N/A Applicant : Visualite Technology Enterprise Limited Address : RM 503, Block A, 5/F Proficient industrial Centre 6 Wang Kwun Road kowloon Bay Hong Kong, China Manufacturer : Visualite Technology Enterprise Limited Address : RM 503, Block A, 5/F Proficient industrial Centre 6 Wang Kwun Road kowloon Bay Hong Kong, 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.:GTS20251127013-1-02 Page 3 of 11 Contents 1. SUMMARY ................................................................................................................................................................. 4 1.1 EUT CONFIGURATION ........................................................................................................................................................ 4 1.2 PRODUCT DESCRIPTION ..................................................................................................................................................... 4 2. TEST ENVIRONMENT ................................................................................................................................................. 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. METHOD OF MEASUREMENT .................................................................................................................................... 6 3.1 APPLICABLE STANDARD ...................................................................................................................................................... 6 3.2 REQUIREMENT ..............................…

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