2ARDU-DINGER-PRO2Network Doorbell

DINGER-PRO-2 DINGER-PRO-2 Power Options AC 16V-24V power adapter: You can connect a wired chime (mechanical or electronic) or a Singer 2Chime Kit. DC 12-24Vpower adapter: Connect an IC Home Singer 2Wireless Chime Kit. Dual Set Up With a Mechanical or Electrical Chime •Transformer Must be able to supply enough power to both devices. Single Set Up With a Mechanical or Electrical Chime Step 5 Connect the Wires. Loosen the power port screws of the doorbell, then loop your existing wires underneath the screws. The wiring orientation does not matter. Step 6Mount the doorbell. Tighten the screws to secure the power wires, then push the wiring back into the wall. Place the doorbell onto the two tabs of the mounting bracket, and then slide it down to secure it. A click sound will indicate that it is locked in. To remove the doorbell from the mounting bracket: 1.Insert the supplied pin into the hole at the bottom of the bracket until it reaches the inner buckle. 2.Slide the doorbell up and remove it from the bracket Step 7Install the Chime kit to the existing Doorbell Chime(Skip this step if using DC power). Remove the cover of your existing chime box, and then find terminals labeled FRONT and TRANS. The chime kit might look different depending on the chime type. Loosen the FRONT and TRANS terminal screws. If there are no markings, simply loosen the two terminals where wires are attached. Make sure not to detach any connected wiring. 6Connect your mobile device to the Dinger Pro 2’s hotspot. The Wi- Fi name will appear as theDingerPro2-device serial number. 7Follow the app instructions to add the doorbell. Login to the local Wi-Fi network, then create a device name and a password for your Dinger Pro 2, as well as set the time zone. 8Select the Chime type for Dinger Pro 2. In the App, tap on the added Dinger Pro 2, then tap on Device Details > Chime Linkage. Know your DINGER-PRO-2 Package Contents Step 3(Optional) Install Wall Anchors.If installing on stucco, brick, or concrete, use the a drill bit to drill holes where marked, and then insert the included wall anchors. For wood, drywall or soft surface, skip this step. Step 4 Secure the Mounting Bracket.Lead the doorbell wires through the hole on the mounting bracket, and then secure the bracket to the mounting surface with a Philips- head screwdriver and supplied mounting screws. Step 1Mark the Mounting Holes. Place the mounting bracket to fit your existing doorbell wiring and then use it to mark the screw holes, following the "Up" direction. Step 2(Optional) Attach one of the angled mounting wedges to the mounting bracket if necessary(See below). Installation 1Power on the Dinger Pro 2 camera and download theIC View Pro App from Google Play or the Apple App Store. 2Open the App, and register a new account. 3On the device page of the app press the "+" icon to initiate QR code scanning. 4Scan the QR code on the back of the Dinger Pro 2. You can also manually enter the serial number on the following page. 5Tap “Next” if you see a blue spinning light on the front of the Dinger Pro 2 that indicates the hotspot is active. (If not, press the call button on the device) Using IC View Pro Frequently Asked Questions Does the Dinger Pro 2 support 5GHz Wi-Fi? Yes. It works with both 2.4GHz and 5GHz Wi-Fi networks. Why isn’t the video doorbell turning on? ●Make sure the doorbell power breaker is on. Wait about 5 minutes for it to power up. ●Check that the power source is 16–24 VAC or 12–24 VDC. You can find this on the doorbell transformer label or test it using a multimeter. ●If using a USB power cable (not included), make sure it’s plugged into a 5V, 2A USB adapter (also not included). How do I reset the Dinger Pro 2? Open the Reset button slot on the back of the doorbell. Use the included pin to press the RESET hole. Release it when you hear "Device is undergoing hard reset" prompt. After a minute, a slow flashing blue light will show the doorbell is ready to set up. Why can’t I connect the video doorbell to Wi-Fi? Wait for the doorbell to flash a slow blue light. Then go to your phone's Settings > Wi-Fi and connect to the “DingerPro2_xxx” hotspot. Why is the video doorbell offline? Check if the Indicator LED is lit solid blue. ●If yes, check if your Wi-Fi router is online. ●If no, factory reset the doorbell and reconnect. Make sure the Wi-Fi signal is strong. Why can’t I connect to the device hotspot? Make sure the IC View Pro app has Location and Wi-Fi permissions. If your phone doesn’t connect automatically, go to Wi-Fi settings and connect to the hotspot manually. Stay connected to the hotspot during setup. Why isn’t the chime working? ●In the IC View Pro app, select the right chime box under Device Details > Chime Link. You can change this anytime. The Dinger Pro 2 only works with the Singer 2. ●Check that the chime is wired properly. ●Let the doorbell power on for 5 minutes before testing the chime. LED Indicator Status: Flashing Blue: Hotspot Enabled Flashing Red:WiFi connection failed Solid Blue:Booting Up/ Online Solid Red:Undergoing Factory Reset

IC Realtime LLC 2025-12-12 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for (FCC ID: 2ARDU-DINGER- PRO2) [ICRealtime LLC] (“the applicant”) certifies 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. We also certify that, as of the date of the filing of the application, the equipment does not utilize cyber-security or anti-virus software from Kaspersky Lab, Inc, or any of its successors and assignees, which is also on the “covered list”. Sincerely, Matt Sailor CEO IC Realtime LLC 3050 N. Andrews AVE EXT, Pompano Beach, Florida, United States, 33064 IC Realtime LLC 2025-12-12 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2ARDU-DINGER- PRO2) [ICRealtime LLC] (“the applicant”) certifies 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. Sincerely, Matt Sailor CEO IC Realtime LLC 3050 N. Andrews AVE EXT, Pompano Beach, Florida, United States, 33064

External Photographs View of EUT-1 View of EUT-2 Page 2 of 4 View of EUT-3 View of EUT-4 Page 3 of 4 View of EUT-5 View of EUT-6 Page 4 of 4 View of EUT-7

23.5◊15mm

Internal Photographs Internal View of EUT-1 Internal View of EUT-2 Page 2 of 11 Internal View of EUT-3 Internal View of EUT-4 Page 3 of 11 Internal View of EUT-5 Internal View of EUT-6 Page 4 of 11 Internal View of EUT-7 Internal View of EUT-8 Page 5 of 11 Internal View of EUT-9 Internal View of EUT-10 Antenna 1 Page 6 of 11 Internal View of EUT-11 Internal View of EUT-12 Antenna 2 Page 7 of 11 Internal View of EUT-13 Internal View of EUT-14 Page 8 of 11 Internal View of EUT-15 Internal View of EUT-16 Page 9 of 11 Internal View of EUT-17 Internal View of EUT-18 Page 10 of 11 Internal View of EUT-19 Internal View of EUT-20 Page 11 of 11 Internal View of EUT-21

RF EXPOSURE EVALUATION According to FCC 1.1310: The criteria listed in the following table shall be used to evaluate the environment impact of human exposure to radio frequency(RF) Radiation as specified in ß1.1307(b) FCC ID: 2ARDU-DINGER-PRO2 EUT Specification EUT TG MAXX Frequency band (Operating) WIFI: 2.412GHz ~ 2.462GHz WIFI: 5.180GHz ~ 5.240GHz WIFI: 5.260GHz ~ 5.320GHz WIFI: 5.500GHz ~ 5.700GHz WIFI: 5.745GHz ~ 5.825GHz 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 Max. output power 2.4G WIFI IEEE 802.11b: 16.49 dBm IEEE 802.11g: 15.44 dBm IEEE 802.11n HT20: 17.59 dBm IEEE 802.11n HT40: 16.27 dBm 5G WIFI U-NII-1 IEEE 802.11a: 15.18 dBm IEEE 802.11n HT20: 16.80 dBm IEEE 802.11n HT40: 16.32 dBm IEEE 802.11ac VHT20: 16.88 dBm IEEE 802.11ac VHT40: 16.72 dBm IEEE 802.11ac VHT80: 16.76 dBm U-NII-2A IEEE 802.11a: 15.16 dBm IEEE 802.11n HT20: 16.89 dBm IEEE 802.11n HT40: 16.00 dBm 2 / 7 IEEE 802.11ac VHT20: 16.51 dBm IEEE 802.11ac VHT40: 16.54 dBm IEEE 802.11ac VHT80: 15.76 dBm U-NII-2C IEEE 802.11a: 16.85 dBm IEEE 802.11n HT20: 16.29 dBm IEEE 802.11n HT40: 16.29 dBm IEEE 802.11ac VHT20: 16.93 dBm IEEE 802.11ac VHT40: 17.23 dBm IEEE 802.11ac VHT80: 15.66 dBm U-NII-3 IEEE 802.11a: 15.24 dBm IEEE 802.11n HT20: 17.00 dBm IEEE 802.11n HT40: 16.20 dBm IEEE 802.11ac VHT20: 17.04 dBm IEEE 802.11ac VHT40: 16.62 dBm IEEE 802.11ac VHT80: 12.30 dBm Antenna gain (Max) 2.4G WIFI 1.68 dBi for antenna 1 3.3 dBi for antenna 2 5G WIFI 2.99 dBi for antenna 1 2.83 dBi for antenna 2 Evaluation applied MPE Evaluation SAR Evaluation Limits for Maximum Permissible Exposure(MPE) Frequency Range(MHz) Electric Field Strength(V/m) Magnetic Field Strength(A/m) Power Density(mW/cm 2 ) Average Time (A) Limits for Occupational/Control Exposures 300-1500 -- -- F/300 6 1500-100000 -- -- 5 6 (B) Limits for General Population/Uncontrol Exposures 300-1500 -- -- F/1500 6 1500-100000 -- -- 1 30 Friis transmission formula: Pd=(Pout*G)\(4*pi*R2) Where P d = Power density in mW/cm 2 , P out =output power to antenna in mW. G= gain of antenna in linear scale, Pi=3.1416 R= distance between observation point and center of the radiator in cm=20cm P d the limit of MPE, 1mW/cm 2 . If we know the maximum gain of the antenna 3 / 7 and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. For multiple RF sources: Multiple RF sources are exempt if: in the case of fixed RF sources operating in the same time-averaging period, or of multiple mobile or portable RF sources within a device operating in the same time averaging period, if the sum of the fractional contributions to the applicable thresholds is less than or equal to 1 as indicated in the following equation Evaluated k : the maximum reported SAR or MPE of fixed, mobile, or portable RF source k either in the device or at the transmitter site from an existing evaluation at the location of exposure. Exposure Limit k : either the general population/uncontrolled maximum permissible exposure (MPE) or specific Absorption rate (SAR) limit for each fixed, mobile, or portable RF source k. Measurement Result 2.4G WIFI: Mode Max Measured Power (dBm) Tune up tolerance (dBm) Max tune up conducted power(dBm) Output Peak power (mW) Ant. Gain (dBi) Ant. Gain (numeric) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/ cm 2 ) Results 802.11b 16.49 16±1 17 50.119 3.3 2.138 0.021318 1 PASS 802.11g 15.44 15±1 16 39.811 3.3 2.138 0.016933 1 PASS 802.11n HT20 17.59 17±1 18 63.096 3.3 2.138 0.026837 1 PASS 802.11n HT40 16.27 16±1 17 50.119 3.3 2.138 0.021318 1 PASS 4 / 7 5G WIFI: U-NII-1 Mode Max Measured Power (dBm) Tune up tolerance (dBm) Max tune up conducted power(dBm) Output Peak power (mW) Ant. Gain (dBi) Ant. Gain (numeric) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/ cm 2 ) Results 802.11a 15.18 15±1 16 39.811 2.99 1.991 0.015769 1 PASS 802.11n HT20 16.80 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 802.11n HT40 16.32 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 802.11ac VHT20 16.88 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 802.11ac VHT40 16.72 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 802.11ac VHT80 16.76 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 5 / 7 U-NII-2A Mode Max Measured Power (dBm) Tune up tolerance (dBm) Max tune up conducted power(dBm) Output Peak power (mW) Ant. Gain (dBi) Ant. Gain (numeric) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/ cm 2 ) Results 802.11a 15.16 15±1 16 39.811 2.99 1.991 0.015769 1 PASS 802.11n HT20 16.89 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 802.11n HT40 16.00 16±1 17 50.119 2.99 1.991 0.015769 1 PASS 802.11ac VHT20 16.51 16±1 17 50.119 2.99 1.991 0.015769 1 PASS 802.11ac VHT40 16.54 16±1 17 50.119 2.99 1.991 0.015769 1 PASS 802.11ac VHT80 15.76 15±1 16 39.811 2.99 1.991 0.015769 1 PASS 6 / 7 U-NII-2C Mode Max Measured Power (dBm) Tune up tolerance (dBm) Max tune up conducted power(dBm) Output Peak power (mW) Ant. Gain (dBi) Ant. Gain (numeric) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/ cm 2 ) Results 802.11a 16.85 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 802.11n HT20 16.29 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 802.11n HT40 16.29 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 802.11ac VHT20 16.93 16±1 17 50.119 2.99 1.991 0.019852 1 PASS 802.11ac VHT40 17.23 17±1 18 63.096 2.99 1.991 0.024992 1 PASS 802.11ac VHT80 15.66 15±1 16 39.811 2.99 1.991 0.015769 1 PASS 7 / 7 U-NII-3 Mode Max Measured Power (dBm) Tune up tolerance (dBm) Max tune up conducted power(dBm) Output Peak power (mW) Ant. Gain (dBi) Ant. Gain (numeric) Power density at 20cm (mW/ cm 2 ) Power density Limits (mW/ cm 2 ) Results 802.11a 15.24 15±1 16 39.811 2.99 1.991 0.015769 1 PASS 802.11n HT20 17.00 17±1 18 63.096 2.99 1.991 0.024992 1 PASS 802.…

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Shanghai Jieshengkang Communication Engineering Co., Ltd. 2H073C-36 (1)Datasheet Model name 2H073C-36 category WIFI frequency band 2400-2500M 5000-5880M form Built-in antenna in PCB Polarization linearly polarized standing wave ≤1.5@2400-2500M ≤3.8@5000-5880M efficiency ≥42%@2400-2500M ≥25%@5000-5880M gain ≤0dBi@2400-2500M ≤0dBi @5000-5880M Color and material green /PI Dimension 23*9.8（mm） operating temperature -40~85°C characteristic impedance 50Ω radiation direction Vertical and horizontal manufacturer Shanghai Jieshengkang Communication Engineering Co., Ltd. Photo and Dimensions 23*8.8（mm） Test environment （1） S11 （2）directional diagram:E&H Polar Plot: E1 E2 H （3）Passive efficiency test data Gain&Efficiency frequency (MHz) gain (dB) efficiency 2400 1.68 49.91% 2420 1.58 49.64% 2440 1.18 42.56% 2450 1.19 42.26% 2480 1.27 45.76% 2500 0.17 44.07% 5150 0.51 32.74% 5200 1.06 35.62% 5240 1.31 36.89% 5320 1.64 37.53% 5400 1.92 39.28% 5480 2.99 41.71% 5560 2.58 37.26% 5640 2.18 36.02% 5720 1.91 32.03% 5800 1.31 28.84% 5850 0.71 25.36%

Shanghai Jieshengkang Communication Engineering Co., Ltd. 2H073C-37 (1)Datasheet Model name 2H073C-37 category WIFI frequency band 2400-2500M 5000-5880M form Built-in antenna in PCB Polarization linearly polarized standing wave ≤1.6@2400-2500M ≤4.8@5000-5880M efficiency ≥60%@2400-2500M ≥22%@5000-5880M gain ≤3.3dBi@2400-2500M ≤0dBi @5000-5880M Color and material green /PI Dimension 23*8.8（mm） operating temperature -40~85°C characteristic impedance 50Ω radiation direction Vertical and horizontal manufacturer Shanghai Jieshengkang Communication Engineering Co., Ltd. Photo and Dimensions 23*8.8（mm） Test environment （2） S11 directional diagram:E&H Polar Plot: E1 E2 H Passive efficiency test data Gain&Efficiency frequency (MHz) gain (dB) efficiency 2400 2.85 60.43% 2420 2.58 61.21% 2440 2.99 63.75% 2450 2.62 62.68% 2470 3.3 65.65% 2480 3.42 66.87% 2500 3.37 64.25% 5150 1.21 22.36% 5200 1.41 22.89% 5280 2.63 26.81% 5360 2.83 30.24% 5440 2.33 37.59% 5520 -0.06 29.73% 5600 -0.71 25.46% 5680 -1.41 25.82% 5760 -1.67 23.87% 5800 -1.72 22.81% 5850 -1.97 22.14%

1 / 95 Duty Cycle Condition Mode Frequency (MHz) Antenna On Time (ms) Period (ms) Duty Cycle (%) Correction Factor (dB) 1/T (kHz) NVNT b 2412 Ant1 12.42 12.56 98.89 0 0.08 NVNT b 2412 Ant2 12.41 12.55 98.88 0 0.08 NVNT b 2437 Ant1 12.42 12.47 99.6 0 0.08 NVNT b 2437 Ant2 12.42 12.52 99.2 0 0.08 NVNT b 2462 Ant1 12.42 12.57 98.81 0 0.08 NVNT b 2462 Ant2 12.42 12.52 99.2 0 0.08 NVNT g 2412 Ant1 2.06 2.2 93.64 0.29 0.48 NVNT g 2412 Ant2 2.07 2.21 93.67 0.28 0.48 NVNT g 2437 Ant1 2.07 2.21 93.67 0.28 0.48 NVNT g 2437 Ant2 2.07 2.19 94.52 0.24 0.48 NVNT g 2462 Ant1 2.07 2.1 98.57 0 0.48 NVNT g 2462 Ant2 2.06 2.13 96.71 0.15 0.49 NVNT n20 2412 Ant1 0.98 1.13 86.73 0.62 1.02 NVNT n20 2412 Ant2 0.98 1.13 86.73 0.62 1.02 NVNT n20 2437 Ant1 0.98 1.11 88.29 0.54 1.02 NVNT n20 2437 Ant2 0.99 1.15 86.09 0.65 1.02 NVNT n20 2462 Ant1 0.99 1.08 91.67 0.38 1.02 NVNT n20 2462 Ant2 0.99 1.12 88.39 0.54 1.02 NVNT n40 2422 Ant1 0.5 0.64 78.13 1.07 2.01 NVNT n40 2422 Ant2 0.5 0.59 84.75 0.72 2.02 NVNT n40 2437 Ant1 0.49 0.55 89.09 0.5 2.04 NVNT n40 2437 Ant2 0.5 0.53 94.34 0.25 2 NVNT n40 2452 Ant1 0.5 0.65 76.92 1.14 2 NVNT n40 2452 Ant2 0.5 0.64 78.13 1.07 2.02 2 / 95 Test Graphs Duty Cycle NVNT b 2412MHz Ant1 Duty Cycle NVNT b 2412MHz Ant2 3 / 95 Duty Cycle NVNT b 2437MHz Ant1 Duty Cycle NVNT b 2437MHz Ant2 4 / 95 Duty Cycle NVNT b 2462MHz Ant1 Duty Cycle NVNT b 2462MHz Ant2 5 / 95 Duty Cycle NVNT g 2412MHz Ant1 Duty Cycle NVNT g 2412MHz Ant2 6 / 95 Duty Cycle NVNT g 2437MHz Ant1 Duty Cycle NVNT g 2437MHz Ant2 7 / 95 Duty Cycle NVNT g 2462MHz Ant1 Duty Cycle NVNT g 2462MHz Ant2 8 / 95 Duty Cycle NVNT n20 2412MHz Ant1 Duty Cycle NVNT n20 2412MHz Ant2 9 / 95 Duty Cycle NVNT n20 2437MHz Ant1 Duty Cycle NVNT n20 2437MHz Ant2 10 / 95 Duty Cycle NVNT n20 2462MHz Ant1 Duty Cycle NVNT n20 2462MHz Ant2 11 / 95 Duty Cycle NVNT n40 2422MHz Ant1 Duty Cycle NVNT n40 2422MHz Ant2 12 / 95 Duty Cycle NVNT n40 2437MHz Ant1 Duty Cycle NVNT n40 2437MHz Ant2 13 / 95 Duty Cycle NVNT n40 2452MHz Ant1 Duty Cycle NVNT n40 2452MHz Ant2 14 / 95 Maximum Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Limit (dBm) Verdict NVNT b 2412 Ant1 16.49 30 Pass NVNT b 2412 Ant2 16.25 30 Pass NVNT b 2437 Ant1 16.11 30 Pass NVNT b 2437 Ant2 15.69 30 Pass NVNT b 2462 Ant1 15.73 30 Pass NVNT b 2462 Ant2 15.47 30 Pass NVNT g 2412 Ant1 15.12 30 Pass NVNT g 2412 Ant2 15.44 30 Pass NVNT g 2437 Ant1 14.81 30 Pass NVNT g 2437 Ant2 15.13 30 Pass NVNT g 2462 Ant1 14.38 30 Pass NVNT g 2462 Ant2 15.1 30 Pass NVNT n20 2412 Ant1 14.36 30 Pass NVNT n20 2412 Ant2 14.79 30 Pass NVNT n20 2412 Sum 17.59 29.69 Pass NVNT n20 2437 Ant1 13.77 30 Pass NVNT n20 2437 Ant2 14.49 30 Pass NVNT n20 2437 Sum 17.16 29.69 Pass NVNT n20 2462 Ant1 13.23 30 Pass NVNT n20 2462 Ant2 14.31 30 Pass NVNT n20 2462 Sum 16.81 29.69 Pass NVNT n40 2422 Ant1 13.13 30 Pass NVNT n40 2422 Ant2 13.39 30 Pass NVNT n40 2422 Sum 16.27 29.69 Pass NVNT n40 2437 Ant1 13.15 30 Pass NVNT n40 2437 Ant2 13.2 30 Pass NVNT n40 2437 Sum 16.19 29.69 Pass NVNT n40 2452 Ant1 12.88 30 Pass NVNT n40 2452 Ant2 13.12 30 Pass NVNT n40 2452 Sum 16.01 29.69 Pass 15 / 95 -6dB Bandwidth Condition Mode Frequency (MHz) Antenna -6 dB Bandwidth (MHz) Limit -6 dB Bandwidth (MHz) Verdict NVNT b 2412 Ant1 9.05 0.5 Pass NVNT b 2412 Ant2 8.58 0.5 Pass NVNT b 2437 Ant1 8.51 0.5 Pass NVNT b 2437 Ant2 9.56 0.5 Pass NVNT b 2462 Ant1 9.55 0.5 Pass NVNT b 2462 Ant2 9.04 0.5 Pass NVNT g 2412 Ant1 16.31 0.5 Pass NVNT g 2412 Ant2 16.34 0.5 Pass NVNT g 2437 Ant1 16.33 0.5 Pass NVNT g 2437 Ant2 16.31 0.5 Pass NVNT g 2462 Ant1 16.36 0.5 Pass NVNT g 2462 Ant2 16.31 0.5 Pass NVNT n20 2412 Ant1 16.96 0.5 Pass NVNT n20 2412 Ant2 17.57 0.5 Pass NVNT n20 2437 Ant1 17.54 0.5 Pass NVNT n20 2437 Ant2 17.18 0.5 Pass NVNT n20 2462 Ant1 16.87 0.5 Pass NVNT n20 2462 Ant2 17.03 0.5 Pass NVNT n40 2422 Ant1 36.29 0.5 Pass NVNT n40 2422 Ant2 36.3 0.5 Pass NVNT n40 2437 Ant1 36.28 0.5 Pass NVNT n40 2437 Ant2 36.26 0.5 Pass NVNT n40 2452 Ant1 36.31 0.5 Pass NVNT n40 2452 Ant2 36.29 0.5 Pass 16 / 95 Test Graphs -6dB Bandwidth NVNT b 2412MHz Ant1 -6dB Bandwidth NVNT b 2412MHz Ant2 17 / 95 -6dB Bandwidth NVNT b 2437MHz Ant1 -6dB Bandwidth NVNT b 2437MHz Ant2 18 / 95 -6dB Bandwidth NVNT b 2462MHz Ant1 -6dB Bandwidth NVNT b 2462MHz Ant2 19 / 95 -6dB Bandwidth NVNT g 2412MHz Ant1 -6dB Bandwidth NVNT g 2412MHz Ant2 20 / 95 -6dB Bandwidth NVNT g 2437MHz Ant1 -6dB Bandwidth NVNT g 2437MHz Ant2 21 / 95 -6dB Bandwidth NVNT g 2462MHz Ant1 -6dB Bandwidth NVNT g 2462MHz Ant2 22 / 95 -6dB Bandwidth NVNT n20 2412MHz Ant1 -6dB Bandwidth NVNT n20 2412MHz Ant2 23 / 95 -6dB Bandwidth NVNT n20 2437MHz Ant1 -6dB Bandwidth NVNT n20 2437MHz Ant2 24 / 95 -6dB Bandwidth NVNT n20 2462MHz Ant1 -6dB Bandwidth NVNT n20 2462MHz Ant2 25 / 95 -6dB Bandwidth NVNT n40 2422MHz Ant1 -6dB Bandwidth NVNT n40 2422MHz Ant2 26 / 95 -6dB Bandwidth NVNT n40 2437MHz Ant1 -6dB Bandwidth NVNT n40 2437MHz Ant2 27 / 95 -6dB Bandwidth NVNT n40 2452MHz Ant1 -6dB Bandwidth NVNT n40 2452MHz Ant2 28 / 95 Occupied Channel Bandwidth Condition Mode Frequency (MHz) Antenna 99% OBW (MHz) NVNT b 2412 Ant1 13.697 NVNT b 2412 Ant2 13.305 NVNT b 2437 Ant1 13.691 NVNT b 2437 Ant2 13.356 NVNT b 2462 Ant1 13.68 NVNT b 2462 Ant2 13.34 NVNT g 2412 Ant1 16.521 NVNT g 2412 Ant2 16.515 NVNT g 2437 Ant1 16.539 NVNT g 2437 Ant2 16.524 NVNT g 2462 Ant1 16.526 NVNT g 2462 Ant2 16.506 NVNT n20 2412 Ant1 17.651 NVNT n20 2412 Ant2 17.578 NVNT n20 2437 Ant1 17.633 NVNT n20 2437 Ant2 17.607 NVNT n20 2462 Ant1 17.646 NVNT n20 2462 Ant2 17.59 NVNT n40 2422 Ant1 36.462 NVNT n40 2422 Ant2 36.307 NVNT n40 2437 Ant1 36.366 NVNT n40 2437 Ant2 36.18 NVNT n40 2452 Ant1 36.416 NVNT n40 2452 Ant2 36.261 29 / 95 Test Graphs OBW NVNT b 2412MHz Ant1 OBW NVNT b 2412MHz Ant2 30 / 95 OBW NVNT b 2437MHz Ant1 OBW NVNT b 2437MHz Ant2 31 / 95 OBW NVNT b 2462MHz Ant1 OBW NVNT b 2462MHz Ant2 32 / 95 OBW NVNT g 2412MHz Ant1 OBW NVNT g 2412MHz Ant2 33 / 95 OBW NVNT g 2437MHz Ant1 OBW NVNT g 2437MHz Ant2 34 / 95 OBW NVNT g 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51 / 95 PSD NVNT n40 2422MHz Ant1 PSD NVNT n40 2422MHz Ant2 52 / 95 PSD NVNT n40 2437MHz Ant1 PSD NVNT n40 2437MHz Ant2 53 / 95 PSD NVNT n40 2452MHz Ant1 PSD NVNT n40 2452MHz Ant2 54 / 95 Band Edge Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT b 2412 Ant1 -52.75 -20 Pass NVNT b 2412 Ant2 -45.76 -20 Pass NVNT b 2462 Ant1 -58.86 -20 Pass NVNT b 2462 Ant2 -59.98 -20 Pass NVNT g 2412 Ant1 -38.97 -20 Pass NVNT g 2412 Ant2 -35.98 -20 Pass NVNT g 2462 Ant1 -52.2 -20 Pass NVNT g 2462 Ant2 -52.5 -20 Pass NVNT n20 2412 Ant1 -40.01 -20 Pass NVNT n20 2412 Ant2 -39.6 -20 Pass NVNT n20 2462 Ant1 -52.58 -20 Pass NVNT n20 2462 Ant2 -53.72 -20 Pass NVNT n40 2422 Ant1 -34.67 -20 Pass NVNT n40 2422 Ant2 -35.04 -20 Pass NVNT n40 2452 Ant1 -49.23 -20 Pass NVNT n40 2452 Ant2 -48.83 -20 Pass 55 / 95 Test Graphs Band Edge NVNT b 2412MHz Ant1 Ref Band Edge NVNT b 2412MHz Ant1 Emission 56 / 95 Band Edge NVNT b 2412MHz Ant2 Ref Band Edge NVNT b 2412MHz Ant2 Emission 57 / 95 Band Edge NVNT b 2462MHz Ant1 Ref Band Edge NVNT b 2462MHz Ant1 Emission 58 / 95 Band Edge NVNT b 2462MHz Ant2 Ref Band Edge NVNT b 2462MHz Ant2 Emission 59 / 95 Band Edge NVNT g 2412MHz Ant1 Ref Band Edge NVNT g 2412MHz Ant1 Emission 60 / 95 Band Edge NVNT g 2412MHz Ant2 Ref Band Edge NVNT g 2412MHz Ant2 Emission 61 / 95 Band Edge NVNT g 2462MHz Ant1 Ref Band Edge NVNT g 2462MHz Ant1 Emission 62 / 95 Band Edge NVNT g 2462MHz Ant2 Ref Band Edge NVNT g 2462MHz Ant2 Emission 63 / 95 Band Edge NVNT n20 2412MHz Ant1 Ref Band Edge NVNT n20 2412MHz Ant1 Emission 64 / 95 Band Edge NVNT n20 2412MHz Ant2 Ref Band Edge NVNT n20 2412MHz Ant2 Emission 65 / 95 Band Edge NVNT n20 2462MHz Ant1 Ref Band Edge NVNT n20 2462MHz Ant1 Emission 66 / 95 Band Edge NVNT n20 2462MHz Ant2 Ref Band Edge NVNT n20 2462MHz Ant2 Emission 67 / 95 Band Edge NVNT n40 2422MHz Ant1 Ref Band Edge NVNT n40 2422MHz Ant1 Emission 68 / 95 Band Edge NVNT n40 2422MHz Ant2 Ref Band Edge NVNT n40 2422MHz Ant2 Emission 69 / 95 Band Edge NVNT n40 2452MHz Ant1 Ref Band Edge NVNT n40 2452MHz Ant1 Emission 70 / 95 Band Edge NVNT n40 2452MHz Ant2 Ref Band Edge NVNT n40 2452MHz Ant2 Emission 71 / 95 Conducted RF Spurious Emission Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT b 2412 Ant1 -47.96 -20 Pass NVNT b 2412 Ant2 -47.95 -20 Pass NVNT b 2437 Ant1 -47.11 -20 Pass NVNT b 2437 Ant2 -47.27 -20 Pass NVNT b 2462 Ant1 -46.9 -20 Pass NVNT b 2462 Ant2 -46.74 -20 Pass NVNT g 2412 Ant1 -38.94 -20 Pass NVNT g 2412 Ant2 -39.92 -20 Pass NVNT g 2437 Ant1 -39.14 -20 Pass NVNT g 2437 Ant2 -39.99 -20 Pass NVNT g 2462 Ant1 -37.53 -20 Pass NVNT g 2462 Ant2 -39.66 -20 Pass NVNT n20 2412 Ant1 -38.78 -20 Pass NVNT n20 2412 Ant2 -39.84 -20 Pass NVNT n20 2437 Ant1 -38.29 -20 Pass NVNT n20 2437 Ant2 -38.64 -20 Pass NVNT n20 2462 Ant1 -37.43 -20 Pass NVNT n20 2462 Ant2 -39.28 -20 Pass NVNT n40 2422 Ant1 -35.06 -20 Pass NVNT n40 2422 Ant2 -34.78 -20 Pass NVNT n40 2437 Ant1 -34.63 -20 Pass NVNT n40 2437 Ant2 -34.79 -20 Pass NVNT n40 2452 Ant1 -35.57 -20 Pass NVNT n40 2452 Ant2 -35.42 -20 Pass 72 / 95 Test Graphs Tx. Spurious NVNT b 2412MHz Ant1 Ref Tx. Spurious NVNT b 2412MHz Ant1 Emission 73 / 95 Tx. Spurious NVNT b 2412MHz Ant2 Ref Tx. Spurious NVNT b 2412MHz Ant2 Emission 74 / 95 Tx. Spurious NVNT b 2437MHz Ant1 Ref Tx. Spurious NVNT b 2437MHz Ant1 Emission 75 / 95 Tx. Spurious NVNT b 2437MHz Ant2 Ref Tx. Spurious NVNT b 2437MHz Ant2 Emission 76 / 95 Tx. Spurious NVNT b 2462MHz Ant1 Ref Tx. Spurious NVNT b 2462MHz Ant1 Emission 77 / 95 Tx. Spurious NVNT b 2462MHz Ant2 Ref Tx. Spurious NVNT b 2462MHz Ant2 Emission 78 / 95 Tx. Spurious NVNT g 2412MHz Ant1 Ref Tx. Spurious NVNT g 2412MHz Ant1 Emission 79 / 95 Tx. Spurious NVNT g 2412MHz Ant2 Ref Tx. Spurious NVNT g 2412MHz Ant2 Emission 80 / 95 Tx. Spurious NVNT g 2437MHz Ant1 Ref Tx. Spurious NVNT g 2437MHz Ant1 Emission 81 / 95 Tx. Spurious NVNT g 2437MHz Ant2 Ref Tx. Spurious NVNT g 2437MHz Ant2 Emission 82 / 95 Tx. Spurious NVNT g 2462MHz Ant1 Ref Tx. Spurious NVNT g 2462MHz Ant1 Emission 83 / 95 Tx. Spurious NVNT g 2462MHz Ant2 Ref Tx. Spurious NVNT g 2462MHz Ant2 Emission 84 / 95 Tx. Spurious NVNT n20 2412MHz Ant1 Ref Tx. Spurious NVNT n20 2412MHz Ant1 Emission 85 / 95 Tx. Spurious NVNT n20 2412MHz Ant2 Ref Tx. Spurious NVNT n20 2412MHz Ant2 Emission 86 / 95 Tx. Spurious NVNT n20 2437MHz Ant1 Ref Tx. Spurious NVNT n20 2437MHz Ant1 Emission 87 / 95 Tx. Spurious NVNT n20 2437MHz Ant2 Ref Tx. Spurious NVNT n20 2437MHz Ant2 Emission 88 / 95 Tx. Spurious NVNT n20 2462MHz Ant1 Ref Tx. Spurious NVNT n20 2462MHz Ant1 Emission 89 / 95 Tx. Spurious NVNT n20 2462MHz Ant2 Ref Tx. Spurious NVNT n20 2462MHz Ant2 Emission 90 / 95 Tx. Spurious NVNT n40 2422MHz Ant1 Ref Tx. Spurious NVNT n40 2422MHz Ant1 Emission 91 / 95 Tx. Spurious NVNT n40 2422MHz Ant2 Ref Tx. Spurious NVNT n40 2422MHz Ant2 Emission 92 / 95 Tx. Spurious NVNT n40 2437MHz Ant1 Ref Tx. Spurious NVNT n40 2437MHz Ant1 Emission 93 / 95 Tx. Spurious NVNT n40 2437MHz Ant2 Ref Tx. Spurious NVNT n40 2437MHz Ant2 Emission 94 / 95 Tx. Spurious NVNT n40 2452MHz Ant1 Ref Tx. Spurious NVNT n40 2452MHz Ant1 Emission 95 / 95 Tx. Spurious NVNT n40 2452MHz Ant2 Ref Tx. Spurious NVNT n40 2452MHz Ant2 Emission

TRF No.: 04-E001-0B TRF Originator: GTG TRF Date: 2023-12-13 Web: www.gtggroup.com E-mail: [email protected] Tel.: 86-400 755 8988 CFR 47 FCC PART 15 SUBPART C(DTS) TEST REPORT For Network Doorbell MODEL NUMBER: DINGER-PRO-2 REPORT NUMBER: E04A25080014F00301 ISSUE DATE: December 10, 2025 FCC ID:2ARDU-DINGER-PRO2 Prepared for IC Realtime LLC 3050 N. Andrews AVE EXT, Pompano Beach, Florida, United States, 33064 Prepared by Guangdong Global Testing Technology Co., Ltd. Room 101-105, 203-210, Building 1, No.2, Keji 8 Road, Songshan Lake Park, Dongguan city, Guangdong, People’s Republic of China, 523808 This report is based on a single evaluation of the submitted sample(s) of the above mentioned product, it does not imply an assessment of the production of the products. This report shall not be reproduced, except in full, without the written approval of Guangdong Global Testing Technology Co., Ltd. REPORT NO.: E04A25080014F00301 Page 2 of 45 TRF No.: 04-E001-0B Global Testing , Great Quality. Revision History Rev. Issue Date Revisions Revised By V0 December 10, 2025 Initial Issue REPORT NO.: E04A25080014F00301 Page 3 of 45 TRF No.: 04-E001-0B Global Testing , Great Quality. Summary of Test Results Test Item Clause Limit/Requirement Result Antenna Requirement N/A FCC Part 15.203/15.247 (c) Pass AC Power Line Conducted Emission ANSI C63.10-2020, Clause 6.2 FCC Part 15.207 Pass Conducted Output Power ANSI C63.10-2020, Clause 11.9.1.3 FCC Part 15.247 (b)(3) Pass 6dB Bandwidth and 99% Occupied Bandwidth ANSI C63.10-2020, Clause 11.8.1 FCC Part 15.247 (a)(2) Pass Power Spectral Density ANSI C63.10-2020, Clause 11.10.2 FCC Part 15.247 (e) Pass Conducted Band edge and spurious emission ANSI C63.10-2020, Clause 11.11 FCC Part 15.247(d) Pass Radiated Band edge and Spurious Emission ANSI C63.10-2020, Clause 11.11 & Clause 11.12 FCC Part 15.205/15.209 Pass Duty Cycle ANSI C63.10-2020, Clause 11.6 None; for reporting purposes only. Pass *This test report is only published to and used by the applicant, and it is not for evidence purpose in China. *The measurement result for the sample received is <Pass> according to <CFR 47 FCC PART 15 SUBPART C(DTS)> when <Accuracy Method> decision rule is applied. REPORT NO.: E04A25080014F00301 Page 4 of 45 TRF No.: 04-E001-0B Global Testing , Great Quality. CONTENTS 1. ATTESTATION OF TEST RESULTS ..................................................................................... 5 2. TEST METHODOLOGY ......................................................................................................... 6 3. FACILITIES AND ACCREDITATION ..................................................................................... 6 4. CALIBRATION AND UNCERTAINTY ................................................................................... 7 4.1. MEASURING INSTRUMENT CALIBRATION ........................................................... 7 4.2. MEASUREMENT UNCERTAINTY ............................................................................ 7 5. EQUIPMENT UNDER TEST .................................................................................................. 8 5.1. DESCRIPTION OF EUT ........................................................................................... 8 5.2. CHANNEL LIST ........................................................................................................ 8 5.3. Maximum Conducted Output Power ....................…

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