2ARDU-SINGER-3Doorsiren

CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 1 of 4 EXTERNAL PHOTOGRAPHS OF EUT 1) EUT Photo 2) EUT Photo Label Location CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 2 of 4 3) EUT Photo 4) EUT Photo CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 3 of 4 5) EUT Photo 6) EUT Photo CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 4 of 4 7) EUT Photo

X XXXXX XXXXX X Doorsiren MODEL: SINGER-3B SEL:XXXXXXXXXXXX 100-240V~ 0.5AMAD E IN XXXXX FCC ID: 2ARDU-SINGER-3 Label Location

X XXXXX XXXXX X Doorsiren MODEL: SINGER-3W SEL:XXXXXXXXXXXX 100-240V~ 0.5A MADE IN XXXXX FCC ID: 2ARDU-SINGER-3 Label Location

CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 1 of 7 INTERNAL PHOTOGRAPHS OF EUT 1) EUT Photo 2) EUT Photo CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 2 of 7 3) EUT Photo 4) EUT Photo Antenna CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 3 of 7 5) EUT Photo 6) EUT Photo CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 4 of 7 7) EUT Photo 8) EUT Photo CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 5 of 7 9) EUT Photo 10) EUT Photo RF Chip CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 6 of 7 11) EUT Photo 12) EUT Photo CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 7 of 7 13) EUT Photo

CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC03 Cerpass Technology Corp. Issued date : Jul. 28, 2026 D-FD-511-0 V1.1 Page No. : 1 of 7 FCC RF EXPOSURE REPORT Applicant : IC Realtime LLC Address : 3050 N. Andrews AVE EXT, Pompano Beach, Florida, United States, 33064 Equipment : Doorsiren Model No. : SINGER-3W, SINGER-3B Trade Name : N/A Date of Sample Receipt : Jul. 06, 202 Date(s) of Test : Jul. 22, 2026~Jul. 27, 2026 FCC ID. : 2ARDU-SINGER-3 I HEREBY CERTIFY THAT: The test result refers exclusively to the test presented test model / sample. Without written approval of Cerpass Technology Corp., the test report shall not be reproduced except in full. Approved by: Leevin Li / Supervisor CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC03 Cerpass Technology Corp. Issued date : Jul. 28, 2026 D-FD-511-0 V1.1 Page No. : 2 of 7 Contents 1. Test Configuration of Equipment under Test ........................................................................................... 4 1.1 Feature of Equipment ............................................................................................................................... 4 1.2 General Information of Test ....................................................................................................................... 5 2. Radio Frequency Exposure ....................................................................................................................... 6 CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC03 Cerpass Technology Corp. Issued date : Jul. 28, 2026 D-FD-511-0 V1.1 Page No. : 3 of 7 History of this test report Version No. Report No Date Description Rev.01 26070024-DRFCC03 Jul. 28, 2026 Initial Issue CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC03 Cerpass Technology Corp. Issued date : Jul. 28, 2026 D-FD-511-0 V1.1 Page No. : 4 of 7 1. Test Configuration of Equipment under Test 1.1 Feature of Equipment Equipment Doorsiren Model Name SINGER-3W, SINGER-3B Model Discrepancy The models are identical to each other except for model name and appearance color. SINGER-3W is the representative for the final test. Frequency Range BLE/ Wi-Fi 2.4GHz: 2400-2483.5MHz Modulation Type BLE: GFSK Wi-Fi 2.4GHz: 802.11b: CCK, DQPSK, DBPSK 802.11g/n: BPSK, QPSK, 16QAM, 64QAM 802.11ax: BPSK, QPSK, 16QAM, 64QAM, 256QAM, 1024QAM Data Rate BLE: GFSK: 1Mbps Wi-Fi 2.4GHz: 802.11b: 1, 2, 5.5, 11Mbps 802.11g: 6, 9, 12, 18, 24, 36, 48, 54Mbps 802.11n: MCS0-MCS7, HT20 802.11ax: MCS0-MCS11, HE20 EUT Power Rating 100-240V~ 0.5A Note: 1. 802.11ax only support full RU. 2. For more details, please refer to the User’s manual of the EUT. CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC03 Cerpass Technology Corp. Issued date : Jul. 28, 2026 D-FD-511-0 V1.1 Page No. : 5 of 7 1.2 General Information of Test Test Site Cerpass Technology Corporation(Cerpass Laboratory) Address: Room 102, No. 5, Xing'an Road, Chang'an Town, Dongguan City, Guangdong Province, China Tel: +86-769-8547-1212 Fax: +86-769-8547-1912 FCC Designation No.: CN1288 Frequency Range Investigated: Conducted: from 150kHz to 30 MHz Radiation: from 30 MHz to 40,000MHz Test Distance: The test distance of radiated emission from antenna to EUT is 3 M. CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC03 Cerpass Technology Corp. Issued date : Jul. 28, 2026 D-FD-511-0 V1.1 Page No. : 6 of 7 2. Radio Frequency Exposure Device category Portable (<20cm separation) Mobile (>20cm separation) Exposure classification Occupational/Controlled exposure (S = 5mW/cm 2 ) General Population/Uncontrolled exposure (S=1mW/cm 2 ) Antenna diversity Single antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Evaluation applied MPE Evaluation* SAR Evaluation N/A TEST RESULTS No non-compliance noted. Calculation Given d G P E   = 30 & 3770 2 E S = Where E = Field strength in Volts / meter P = Power in Watts G = Numeric antenna gain d = Distance in meters S = Power density in milliwatts / square centimeter Combining equations and re-arranging the terms to express the distance as a function of the remaining variables yields: 2 3770 30 d G P S   = Changing to units of mW and cm, using: P (mW) = P (W) / 1000 and d (cm) = d(m) /100 Yields () () 2 2 0796.0 100/3770 1000/30 d GP d GP S  =   = Equation 1 Where d = Distance in cm P = Power in mW G = Numeric antenna gain S = Power density in mW / cm 2 CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC03 Cerpass Technology Corp. Issued date : Jul. 28, 2026 D-FD-511-0 V1.1 Page No. : 7 of 7 Maximum Permissible Exposure Bluetooth Test Mode Channel Frequency (MHz) Max. Conducted output power (dBm) Max. Tune up power (dBm) Antenna Gain (dBi) Distance (cm) Power Density (mW/cm²) Limit (mW/cm²) Bluetooth LE 2402-2480 7.460 9.460 2.66 20 0.003 1 Wlan Test Mode Channel Frequency (MHz) Max. Conducted output power (dBm) Max. Tune up power (dBm) Antenna Gain (dBi) Distance (cm) Power Density (mW/cm²) Limit (mW/cm²) WLAN 2.4G 2412-2462 25.94 27.94 2.66 20 0.228 1 ----------THE END OF REPORT----------

CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC01 Cerpass Technology Corp. Issued Date : Jul. 28, 2026 D-FD-506-0 V1.1 Page No. : 1 of 43 FCC RADIO TEST REPORT Applicant : IC Realtime LLC Address : 3050 N. Andrews AVE EXT, Pompano Beach, Florida, United States, 33064 Equipment : Doorsiren Model No. : SINGER-3W, SINGER-3B Trade Name : N/A Date of Sample Receipt : Jul. 06, 202 Date(s) of Test : Jul. 22, 2026~Jul. 27, 2026 FCC ID. : 2ARDU-SINGER-3 Standard : FCC part 15 Subpart C §15.247 I HEREBY CERTIFY THAT : The test result refers exclusively to the test presented test model / sample. Without written approval of Cerpass Technology Corp., the test report shall not be reproduced except in full. Approved by: Leevin Li / Supervisor CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC01 Cerpass Technology Corp. Issued Date : Jul. 28, 2026 D-FD-506-0 V1.1 Page No. : 2 of 43 Contents 1. Summary of Test Procedure and Test Results ................................................................................ 5 1.1 Applicable Standards ................................................................................................................. 5 2. Test Configuration of Equipment under Test ................................................................................... 6 2.1 Feature of Equipment under Test ............................................................................................... 6 2.2 Carrier Frequency of Channels .................................................................................................. 7 2.3 Test Mode and Test Software ..................................................................................................... 8 2.4 Power Parameter Value of the test software .............................................................................. 9 2.5 Description of Test System ....................................................................................................... 10 2.6 General Information of Test ...................................................................................................... 11 2.7 Measurement Uncertainty ........................................................................................................ 11 3. Test Equipment and Ancillaries Used for Tests ............................................................................. 12 4. Antenna Requirements ..................................................................................................................... 14 4.1 Standard Applicable ................................................................................................................. 14 4.2 Antenna Construction and Directional Gain ............................................................................. 14 5. Test of Conducted Emission ............................................................................................................ 15 5.1 Test Limit .................................................................................................................................. 15 5.2 Test Procedures ....................................................................................................................... 15 5.3 Typical Test Setup .................................................................................................................... 16 5.4 Test Result and Data ................................................................................................................ 17 6. Test of Spurious Emission (Radiated) ............................................................................................ 19 6.1 Test Limit .................................................................................................................................. 19 6.2 Test Procedures ....................................................................................................................... 19 6.3 Typical Test Setup .................................................................................................................... 20 6.4 Test Result and Data (9kHz ~ 30MHz) .................................................................................... 21 6.5 Test Result and Data (30MHz ~ 1GHz) ................................................................................... 21 6.6 Test Result and Data (1GHz ~ 25GHz) .................................................................................... 23 6.7 Restricted Bands of Operation ................................................................................................. 29 6.8 Restrict Band Emission Measurement Data ............................................................................ 30 7. Test of Spurious Emission (Conducted)......................................................................................... 34 7.1 Test Limit .................................................................................................................................. 34 7.2 Test Procedure ......................................................................................................................... 34 7.3 Test Setup Layout .................................................................................................................... 34 7.4 Test Result and Data ................................................................................................................ 34 8. On Time, Duty Cycle and Measurement methods ......................................................................... 36 8.1 Test Limit .................................................................................................................................. 36 8.2 Test Procedure ......................................................................................................................... 36 8.3 Test Setup Layout .................................................................................................................... 36 8.4 Test Result an…

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CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC02 Cerpass Technology Corp. Issued date : Jul. 28, 2026 D-FD-508-0 V1.1 Page No. : 1 of 108 FCC RADIO TEST REPORT Applicant : IC Realtime LLC Address : 3050 N. Andrews AVE EXT, Pompano Beach, Florida, United States, 33064 Equipment : Doorsiren Model No. : SINGER-3W, SINGER-3B Trade Name : N/A Date of Sample Receipt : Jul. 06, 202 Date(s) of Test : Jul. 22, 2026~Jul. 27, 2026 FCC ID. : 2ARDU-SINGER-3 Standard : FCC part 15 Subpart C §15.247 I HEREBY CERTIFY THAT: The test result refers exclusively to the test presented test model / sample. Without written approval of Cerpass Technology Corp., the test report shall not be reproduced except in full. Approved by: Leevin Li / Supervisor CERPASS TECHNOLOGY CORP. Report No.: 26070024-DRFCC02 Cerpass Technology Corp. Issued date : Jul. 28, 2026 D-FD-508-0 V1.1 Page No. : 2 of 108 CONTENTS 1. Summary of Test Procedure and Test Results .................................................................................... 5 1.1 Applicable Standards ............................................................................................................................ 5 2. Test Configuration of Equipment under Test ...................................................................................... 6 2.1 Feature of Equipment under Test .......................................................................................................... 6 2.2 Carrier Frequency of Channels ............................................................................................................. 7 2.3 Test Mode and Test Software ................................................................................................................ 8 2.4 Power Parameter Value of the test software ......................................................................................... 9 2.5 Description of Test System .................................................................................................................. 10 2.6 General Information of Test ................................................................................................................. 11 2.7 Measurement Uncertainty ................................................................................................................... 11 3. Test Equipment and Ancillaries Used for Tests ................................................................................ 12 4. Antenna Requirements ........................................................................................................................ 14 4.1 Standard Applicable ............................................................................................................................ 14 4.2 Antenna Construction and Directional Gain ........................................................................................ 14 5. Test of AC Power Line Conducted Emission .................................................................................... 15 5.1 Test Limit ............................................................................................................................................. 15 5.2 Test Procedures .................................................................................................................................. 15 5.3 Typical Test Setup ............................................................................................................................... 16 5.4 Test Result and Data ........................................................................................................................... 17 6. Test of Spurious Emission (Radiated) ............................................................................................... 19 6.1 Test Limit ............................................................................................................................................. 19 6.2 Test Procedures .................................................................................................................................. 19 6.3 Typical Test Setup ............................................................................................................................... 20 6.4 Test Result and Data (9kHz ~ 30MHz) ................................................................................................ 21 6.5 Test Result and Data (30MHz ~ 1GHz) ............................................................................................... 21 6.6 Test Result and Data (Bandedge) ....................................................................................................... 23 6.7 Test Result and Data (1GHz ~ 25GHz) ............................................................................................... 67 6.8 Restricted Bands of Operation ............................................................................................................ 91 7. Test of Conducted Spurious Emission .............................................................................................. 92 7.1 Test Limit ............................................................................................................................................. 92 7.2 Test Procedure .................................................................................................................................... 92 7.3 Test Setup Layout ................................................................................................................................ 92 7.4 Test Result and Data ........................................................................................................................... 92 8. On Time, Duty Cycle and Measurement methods ............................................................................ 97 8.1 Test Limit ...............................................................................................................................…

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  Dongguan UANT Electronics Co., Ltd. SpecificaƟon Address: Room 101, Building 2, No. 9, Xinfa Road, Tangxia Town, Dongguan City, Guangdong, PRC Tel: +86-0769-81777126 Email: [email protected] ¾ Antenna technical parameters Model UB01C45F1D5563A Type FPC Frequency range 2.4G/5.8G Appearance FPC+ Aerial feeder Efficiency 49.11%@2.4G漢63.47%@5.8G Gain (dBi) [email protected]漢[email protected] DirecƟon OmnidirecƟonal antenna Connect type IPEX Antenna size 34.8*13.2*0.2mm Feeder specificaƟon 1.13 line Feeder Loss 0.5dB灄m-1@1GHz漓1dB灄m-1@3GHz漓 3dB灄m-1@6GHz RL (return loss) 漣-10dB CharacterisƟc impedance 50Ω Storage temperature -20~70燠 Working temperature -20~70燠 Capacity / IP rate / Withstand voltage 500V 澳 澳 澳 澳 ¾ Product 2D drawing 澳 澳 澳 澳 ¾ IPEX connector speciβication 澳 澳 澳 澳 ¾ Connector structure diagram 澳 澳 澳 ¾ Behaviour of electricity 澳 澳 澳 ¾ Size 澳 澳 澳 ¾ 澷濣濕濬濝濕濠澡濗濕濖濠濙澔濙濠濙濗濨濦濝濗濕濠澔濤濙濦濚濣濦濡濕濢濗濙澔濤濕濦濕濡濙濨濙濦濧澔 澔 Capacitance (pF/m) 95.6 Impedance (ohm) 50 Transmission rate (%) 70 Working frequency (GHz) 6.0 Max working voltage(Vrms) 1000 澔 澔 澔 ¾ 澵濨濨濙濢濩濕濨濝濣濢澔 澔 Frequency (GHz)Attenuation (dB/m) 1.0 2.3 2.0 3.1 3.0 3.9 4.0 4.6 5.0 5.1 6.0 5.8 澔 ¾ 濈濙濧濨濝濢濛澔濙濥濩濝濤濡濙濢濨澔濠濝濧濨澔 澔 Device name Manufacturer Model# Series Number Network Analyzer Agilent E5071C MY46315996 Radio Communication Tester ROHDE&SCHWARZ CMW500 0002K50-100844 澳 澳 澳 澳 澳 澳 澳 ¾ 濈濙濧濨澔濗濣濢濚濝濛濩濦濕濨濝濣濢澔濘濝濕濛濦濕濡澔澔 澔 澔 ¾ 澸濙濪濝濗濙澔濤濣濧濝濨濣濢澔澔 澔 澔 澔 ¾ 濈濙濧濨濝濢濛澔濦濙濧濩濠濨澔濕濢濘澔濛濦濕濤濜濝濗濧澔澜濆濙濨濩濦濢澔濠濣濧濧澔濪濧澢澔濊濇濋濆澝澔 澔 澔 ¾ 澹濚濚濝濗濝濙濢濗濭澔 澺濦濙濥濩濙濢濗濭澔澣澔濁澼濮澔澹濚濚濝濗濝濙濢濗濭澔澣澔濘澶澔澹濚濚濝濗濝濙濢濗濭澔澣澔澙澔澻濕濝濢澣澔濘澶濝澔澔 濅濇濃濃澳激濆濁濃濄澳濈濃澳濅濁濆濄澳 濅濇濄濃澳激濆濁濅澳濇濊濁濋濉澳濅濁濆濆澳 濅濇濅濃澳激濅濁濊濊澳濈濅濁濋濇澳濅濁濉濉澳 濅濇濆濃澳激濆濁濅澳濇濊濁濋濉澳濅濁濈濌澳 濅濇濇濃澳激濆澳濈濃濁濄濅澳濅濁濆濇澳 濅濇濈濃澳激濆濁濄濆澳濇濋濁濉濇澳濅濁濈濋澳 濅濇濉濃澳激濆濁濄濈澳濇濋濁濇濅澳濅濁濄濄澳 濅濇濊濃澳激濆濁濃濌澳濇濌濁濃濌澳濅濁濆濇澳 濅濇濋濃澳激濆濁濄濈澳濇濋濁濇濉澳濄濁濇濉澳 濅濇濌濃澳激濆濁濅濉澳濇濊濁濅濄澳濄濁濉濇澳 濅濈濃濃澳激濆濁濃濇澳濇濌濁濊濄澳濄濁濇濄澳 濈濄濈濃澳激濅濁濉濄澳濈濇濁濋濆澳濇濁濆澳 濈濅濃濃澳激濅濁濌濇澳濈濃濁濋濅澳濆濁濉濇澳 濈濅濈濃澳濅濁濉澳濈濇濁濌濈澳濆濁濉濄澳 濈濆濃濃澳激濅濁濆濈澳濈濋濁濅濄澳濆濁濇濋澳 濈濆濈濃澳激濄濁濉濈澳濉濋濁濆濌澳濇濁濅濌澳 濈濇濃濃澳激濄濁濌濋澳濉濆濁濆濌澳濆濁濌濅澳 濈濇濈濃澳激濄濁濌濆澳濉濇濁濄濅澳濆濁濇濇澳 濈濈濃濃澳激濄濁濉濌澳濉濊濁濊濉澳濆濁濉澳 濈濈濈濃澳激濄濁濌濉澳濉濆濁濉濋澳濆濁濃濄澳 濈濉濃濃澳激濄濁濌濈澳濉濆濁濋濆澳濆濁濄濆澳 濈濉濈濃澳激濄濁濉濇澳濉濋濁濈濈澳濆濁濊濈澳 濈濊濃濃澳激濄濁濊澳濉濊濁濉濄澳濆濁濋澳 濈濊濈濃澳激濄濁濈濉澳濉濌濁濋濅澳濆濁濌澳 濈濋濃濃澳激濄濁濋濊澳濉濈濁濃濄澳濆濁濉濉澳 濈濋濈濃澳激濄濁濇濋澳濊濄濁濄濅澳濇濁濇濋澳 澔 澔 澔 澔 澔 澔 澔 澔 澔 澔 ¾ 澦澸澔澸濝濦濙濗濨濝濣濢澔 濄濜濝澔澤澔 澔 濄濜濝澔澭澤澔 澔 濈濜濙濨濕澔澭澤澔 澔 ¾澧澸澔澸濝濦濙濗濨濝濣濢 澔 澔

CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 1 of 2 TEST SETUP PHOTOGRAPHS OF EUT AC POWER LINE CONDUCTED EMISSION TEST Front View Side View CERPASS TECHNOLOGY CORP. Report No.: 26070024 CERPASS TECHNOLOGY CORP. Issued date : Jul. 28, 2026 Page No. : 2 of 2 RADIATED EMISSION TEST 30MHz~1GHz Above 1GHz