2AG7C-BELL7TWireless DoorBell

ModelDeclarationLetter We,theundersigningcompany CompanyName:HangzhouMeariTechnologyCo.,Ltd. Address:Room604-605,Building1,No.768JianghongRoad,Changhestreet,Binjiang District,Hangzhou,zhejiang，China Herebyconfirmthatthefollowingproducts: Product description: Wireless DoorBell Type designation: Bell 7S,Bell 7SN,Bell 7T,Bell 7X,Bell 7Q and LV-PDB6 That The PCB board, structure and internal of these model(s) above are the same, Only the model name is different. Please refer to page 2 for detailed information. Date: 2021-8-9 Name: Zhiyang Chai Telephone: +8615869048127 E-mail: [email protected] Signature: The difference between Bell 7S is show in the below table: Bell 7S Version A Version B Main board The main control of IC is different, the schematic is slightly different The main control of IC is different, the schematic is slightly different Frequency bands The same, support Wi-Fi 2.4G Support SRD 433/915; The same Wi-Fi module Hi3861LV100 802.11b/g/n20 1T1R The same Wi-Fi antenna FPC antenna The same SRD module 433 for CE 915 for FCC The same SRD antenna Integral antenna(CE) FPC antenna(FCC) FPC antenna(CE) FPC antenna(FCC) Appearance Slightly different Slightly different Dimension The same The same GPU support support Rear camera Not support Not support Front camera The same The same Adapter GPO GTA92-0501000US I/P: 100-240V ~ 50/60Hz, 0.3A O/P 5V= 1.0A, 5.0W SZTY TPA-46B050100UU I/P: 100-240V ~ 50/60Hz, 0.2A O/P 5V= 1000mA The same Battery Rechargeable Li-ion Battery Model: CM-18650-2P 3.6V,3350mAh 2* Battery TUV SUD CB Certificate NO.:SG-PSB-BT-01712 Report NO.:211-282200068-000 Rechargeable Li-ion Battery Model: CM-18650-2P 3.6V,6700mAh 1* Battery CMC TESTING CB Report NO.:CMC210224001 Accessories 2 USB cables Black White The same Note: Pre-test at both voltage AC/DC 12V-24V and DC 5V to Adapter, but we only recorded the worst case in this report.( DC 5V to Adapter)

Confidentiality Request Letter For Certification Service in the USA FederalCommunicationCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoParagraphs§0.457and0.459oftheCommission’sRules(47C.F.R.)andSection §552(b)(4)oftheFreedomofInformationAct,werequestconfidentialityforthe documentationofthefollowingproducts: FCCIDModelname 2AG7C-BELL7TBell 7S, Bell 7SN, Bell 7T, Bell 7X, Bell 7Q, LV-PDB6 Fortheproductslistedabove,werequestpermanentconfidentialityforallapplicable exhibitsasthereare:  theOperationalDescription  theBlockDiagram theSchematics Theabovelistedexhibitscontaintradesecretsandproprietaryinformationthatcouldbeof benefittoourcompetitors. Ifyouhaveanyquestions,pleasefeelfreetocontactusattheaddressshownbelow. Sincerely, 2021-8-4 SignatureDate PrintedNameofSignee: Company:HangzhouMeariTechnologyCo.,Ltd. Address: Room604-605,Building1,No.768JianghongRoad,Changhestreet,Binjiang District,Hangzhou,zhejiang ， China Phone: +8615869048127 Email:[email protected]

Report No.: GTS20210708001-1-10 Page 46 of 64 6. E X T E R N A L A N D I N T E R N A L P H O T O S O F T H E EUT Fig. 1 Fig. 2 Version A Version B Report No.: GTS20210708001-1-10 Page 47 of 64 Fig. 3 Fig. 4 Report No.: GTS20210708001-1-10 Page 48 of 64 Fig. 5 Fig. 6 Report No.: GTS20210708001-1-10 Page 49 of 64 Fig. 7 Fig. 8 Report No.: GTS20210708001-1-10 Page 50 of 64 Fig. 9 Fig. 10 Report No.: GTS20210708001-1-10 Page 51 of 64 Fig. 11 Fig. 12 Report No.: GTS20210708001-1-10 Page 52 of 64 Fig. 13 Fig. 14 Report No.: GTS20210708001-1-10 Page 53 of 64 Fig. 15 Fig. 16

Labellocation

Report No.: GTS20210708001-1-10 Page 54 of 64 Fig. 17 Fig. 18 2.4GWLAN Antenna Report No.: GTS20210708001-1-10 Page 55 of 64 Fig. 19 Fig. 20 SRD Antenna Report No.: GTS20210708001-1-10 Page 56 of 64 Fig. 21 Fig. 22 Report No.: GTS20210708001-1-10 Page 57 of 64 Fig. 23 Fig. 24 Report No.: GTS20210708001-1-10 Page 58 of 64 Fig. 25 Fig. 26 Report No.: GTS20210708001-1-10 Page 59 of 64 Fig. 27 Fig. 28 Report No.: GTS20210708001-1-10 Page 60 of 64 Fig. 29 Fig. 30 Report No.: GTS20210708001-1-10 Page 61 of 64 Fig. 31 Fig. 32 Report No.: GTS20210708001-1-10 Page 62 of 64 Fig. 33 Fig. 34 Report No.: GTS20210708001-1-10 Page 63 of 64 Fig. 35 Fig. 36 Report No.: GTS20210708001-1-10 Page 64 of 64 Fig. 37 .......................End of Report........................

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. ............................................ : GTS20210708001-1-12 2AG7C-BELL7T Compiled by ( position+printed name+signature) . : File administrators Peter Xiao Supervised by ( position+printed name+signature) . : Test Engineer Oliver Ou Approved by ( position+printed name+signature) . : Manager Simon Hu Date of issue .................................... : Jul.31, 2021 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 ............................ : Hangzhou Meari Technology Co., Ltd. Address ............................................ : Room 604-605, Building 1, No.768 Jianghong Road, Changhe street, Binjiang District, Hangzhou, zhejiang, China Test specification ........................... : Standard ........................................... : 47CFR §1.1310 47CFR §2.1091 KDB447498 D01 General RF Exposure Guidance v06 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 ..................... : Wireless DoorBell Trade Mark ....................................... : N/A Manufacturer .................................... : Hangzhou Meari Technology Co., Ltd. Model/Type reference ...................... : Bell 7S Listed Models .................................. : Bell 7SN, Bell 7T, Bell 7X, Bell 7Q, LV-PDB6 Modulation Type ............................... : 802.11b: DSSS; 802.11g/n: OFDM OOK Operation Frequency........................ : From 2412MHz to 2462MHz, 915MHz Hardware Version ............................ : PCB-BELL7S-T1MB_GC1 REV1_0(Version A) PCB-BELL7NS-T1MB_GC1 REV1_0(Version B) Software Version .............................. : N/A Rating ............................................... : DC 3.6V by battery Recharged by DC 5.0V/1.0A or AC/DC 12V-24V Result ............................................... : PASS Report No.: GTS20210708001-1-12 Page 2 of 13 T E S T R E P O R T Test Report No. : GTS20210708001-1-12 Jul.31, 2021 ______________________________________________________________________________________________ Date of issue Equipment under Test : Wireless DoorBell Model /Type : Bell 7S Listed model : Bell 7SN, Bell 7T, Bell 7X, Bell 7Q, LV-PDB6 Applicant : Hangzhou Meari Technology Co., Ltd. Address : Room 604-605, Building 1, No.768 Jianghong Road, Changhe street, Binjiang District, Hangzhou, zhejiang, China Manufacturer : Hangzhou Meari Technology Co., Ltd. Address : No. 91 Chutian Road, Xixing Street, Binjiang District, Hangzhou, Zhejiang, 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.: GTS20210708001-1-12 Page 3 of 13 Contents 1. SUMMARY ................................................................................................................................................................. 4 1.1 EUT CONFIGURATION ........................................................................................................................................................ 4 1.2 PRODUCT DESCRIPTION ..................................................................................................................................................... 4 1.3 DIFFERENCE DESCRIPTION ................................................................................................................................................... 5 2. TEST ENVIRONMENT ................................................................................................................................................. 6 2.1 ADDRESS OF THE TEST LABORATORY ..................................................................................................................................... 6 2.2 TEST FACILITY .................................................................................................................................................................. 6 2.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................................ 6 2.4 STATEMENT OF THE MEASUREMENT UNCERTAINTY .................................................................................................................. 6 3. METHOD OF MEASUREMENT .................................................................................................................................... 7 3.1 APPLICABLE STANDARD ...................................................................................................................................................... 7 3.2 REQUIREMENT ................................................................................................................................................................. 7 3.3 LIMIT ..................................................................................................................…

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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. ............................................ : GTS20210708001-1-10 2AG7C-BELL7T Compiled by ( position+printed name+signature) .. : File administrators Peter Xiao Supervised by ( position+printed name+signature) .. : Test Engineer Oliver Ou Approved by ( position+printed name+signature) .. : Manager Simon Hu Date of issue ..................................... : Jul.31, 2021 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 ............................ : Hangzhou Meari Technology Co., Ltd. Address ............................................ : Room 604-605, Building 1, No.768 Jianghong Road, Changhe street, Binjiang District, Hangzhou, zhejiang, China Test specification ...........................: Standard ........................................... : FCC Part 15.247: Operation within the bands 902-928 MHz, 2400- 2483.5 MHz and 5725-5850 MHz ANSI C63.10-2013 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 .....................: Wireless DoorBell Trade Mark ....................................... : N/A Manufacturer .................................... : Hangzhou Meari Technology Co., Ltd. Model/Type reference....................... : Bell 7S Listed Models .................................. : Bell 7SN, Bell 7T, Bell 7X, Bell 7Q, LV-PDB6 Operation Frequency ........................ : From 2412MHz to 2462MHz Hardware Version ............................ : PCB-BELL7S-T1MB_GC1 REV1_0(Version A) PCB-BELL7NS-T1MB_GC1 REV1_0(Version B) Software Version .............................. : N/A Rating ............................................... : DC 3.6V by battery Recharged by DC 5.0V/1.0A or AC/DC 12V-24V Result................................................ : PASS Report No.: GTS20210708001-1-10 Page 2 of 65 T E S T R E P O R T Test Report No. : GTS20210708001-1-10 Jul.31, 2021 ____________________________________________________________________________________ Date of issue Equipment under Test : Wireless DoorBell Model /Type : Bell 7S Listed model : Bell 7SN, Bell 7T, Bell 7X, Bell 7Q, LV-PDB6 Applicant : Hangzhou Meari Technology Co., Ltd. Address : Room 604-605, Building 1, No.768 Jianghong Road, Changhe street, Binjiang District, Hangzhou, zhejiang, China Manufacturer : Hangzhou Meari Technology Co., Ltd. Address : No. 91 Chutian Road, Xixing Street, Binjiang District, Hangzhou, Zhejiang, 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.: GTS20210708001-1-10 Page 3 of 65 Contents 1. TEST STANDARDS ......................................................................................................................................... 4 2. SUMMARY ....................................................................................................................................................... 5 2.1. General Remarks ................................................................................................................................... 5 2.2. Product Description ................................................................................................................................ 5 2.3. Difference description............................................................................................................................. 6 2.4. Equipment Under Test ........................................................................................................................... 7 2.5. Short description of the Equipment under Test (EUT) ........................................................................... 7 2.6. EUT operation mode .............................................................................................................................. 7 2.7. Block Diagram of Test Setup ................................................................................................................. 7 2.8. Related Submittal(s) / Grant (s) ............................................................................................................. 8 2.9. EUT Exercise Software .......................................................................................................................... 8 2.10. Special Accessories ............................................................................................................................. 8 2.11. External I/O Cable ................................................................................................................................ 8 2.12. Modifications ........................................................................................................................................ 8 3. TEST ENVIRONMENT ..................................................................…

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Report No.: GTS20210708001-1-10 Page 31 of 65 4.5. 6dB Bandwidth TEST CONFIGURATION EUT SPECTRUM ANALYZER TEST PROCEDURE The transmitter output was connected to the spectrum analyzer through an attenuator. The bandwidth of the fundamental frequency was measured by spectrum analyzer with RBW=100 KHz and VBW=300KHz. The 6dB bandwidth is defined as the total spectrum the power of which is higher than peak power minus 6dB. According to KDB558074 D01 for one of the following procedures may be used to determine the modulated DTS device signal bandwidth. 1. Set RBW = 100 kHz. 2. Set the video bandwidth (VBW) ≥ 3 RBW. 3. Detector = Peak. 4. Trace mode = max hold. 5. Sweep = auto couple. 6. Allow the trace to stabilize. 7. Measure the maximum width of the emission that is constrained by the frequencies associated with the two outermost amplitude points (upper and lower frequencies) that are attenuated by 6 dB relative to the maximum level measured in the fundamental emission. LIMIT For digital modulation systems, the minimum 6 dB bandwidth shall be at least 500 kHz TEST RESULTS Temperature 23.4°C Humidity 52.7% Test Engineer Oliver Ou Configurations IEEE 802.11b/g/n Type Channel 6dB Bandwidth (MHz) Limit (KHz) Result 802.11b 01 9.120 ≥500 Pass 06 9.160 11 9.160 802.11g 01 16.440 ≥500 Pass 06 16.520 11 16.440 802.11nHT20 01 17.640 ≥500 Pass 06 17.680 11 17.680 Report No.: GTS20210708001-1-10 Page 32 of 65 802.11b 802.11g CH01 CH01 CH06 CH06 CH11 CH11 Report No.: GTS20210708001-1-10 Page 33 of 65 802.11n HT20 CH01 CH06 CH11 Report No.: GTS20210708001-1-10 Page 34 of 65 4.6. Band Edge Compliance of RF Emission TEST REQUIREMENT In any 100 kHz bandwidth outside the frequency band in which the spread spectrum or digitally modulated intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in the 100 kHz bandwidth within the band that contains the highest level of the desired power, based on either an RF conducted or a radiated measurement, provided the transmitter demonstrates compliance with the peak conducted power limits. If the transmitter complies with the conducted power limits based on the use of RMS averaging over a time interval, as permitted under paragraph (b)(3) of this section, the attenuation required under this paragraph shall be 30 dB instead of 20 dB. Attenuation below the general limits specified in §15.209(a) is not required. In addition, radiated emissions which fall in the restricted bands, as defined in §15.205(a), must also comply with the radiated emission limits specified in §15.209(a) (see §15.205(c)). TEST PROCEDURE According to KDB 558074 D01 for Antenna-port conducted measurement. Antenna-port conducted measurements may also be used as an alternative to radiated measurements for demonstrating compliance in the restricted frequency bands. If conducted measurements are performed, then proper impedance matching must be ensured and an additional radiated test for cabinet/case spurious emissions is required. 1. Check the calibration of the measuring instrument using either an internal calibrator or a known signal from an external generator. 2. Remove the antenna from the EUT and then connect to a low loss RF cable from the antenna port to a EMI test receiver, then turn on the EUT and make it operate in transmitting mode. Then set it to Low Channel and High Channel within its operating range, and make sure the instrument is operated in its linear range. 3. Set both RBW and VBW of spectrum analyzer to 100 kHz with a convenient frequency span including 100kHz bandwidth from band edge, for Radiated emissions restricted band RBW=1MHz, VBW=3MHz for peak detector and RBW=1MHz, VBW=10Hz for average detector. 4. Measure the highest amplitude appearing on spectral display and set it as a reference level. Plot the graph with marking the highest point and edge frequency. 5. Repeat above procedures until all measured frequencies were complete. 6. Measure the conducted output power (in dBm) using the detector specified by the appropriate regulatory agency (see 12.2.2, 12.2.3, and 12.2.4 for guidance regarding measurement procedures for determining quasi-peak, peak, and average conducted output power, respectively). 7. Add the maximum transmit antenna gain (in dBi) to the measured output power level to determine the EIRP level (see 12.2.5 for guidance on determining the applicable antenna gain) 8. Add the appropriate maximum ground reflection factor to the EIRP level (6 dB for frequencies ≤ 30 MHz, 4.7 dB for frequencies between 30 MHz and 1000 MHz, inclusive and 0 dB for frequencies > 1000 MHz). 9. For devices with multiple antenna-ports, measure the power of each individual chain and sum the EIRP of all chains in linear terms (e.g., Watts, mW). 10. Convert the resultant EIRP level to an equivalent electric field strength using the following relationship: E = EIRP – 20log D + 104.8 where: E = electric field strength in dBμV/m, EIRP = equivalent isotropic radiated power in dBm D = specified measurement distance in meters. 11. Since the out-of-band characteristics of the EUT transmit antenna will often be unknown, the use of a conservative antenna gain value is necessary. Thus, when determining the EIRP based on the measured conducted power, the upper bound on antenna gain for a device with a single RF output shall be selected as the maximum in-band gain of the antenna across all operating bands, or 2 dBi, whichever is greater. However, for devices that operate in multiple frequency bands while using the same transmit antenna, the highest gain of the antenna within the operating band nearest in frequency to the restricted band emission being measured may be used in lieu of the overall highest gain when the emission is at a frequency that is within 20 percent of the nearest band edge frequency, but in no case shall a value less than 2 dBi be used. 12. Compare the resultant electric field strength level to the appl…

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Report No.: GTS20210708001-1-10 Page 41 of 65 5. T E S T S E T U P P H O T O S O F T H E E U T Version A Adapter: TPA-46B050100UU Radiated Emission Report No.: GTS20210708001-1-10 Page 42 of 65 Conducted Emission Adapter:GTA92-0501000US Radiated Emission Report No.: GTS20210708001-1-10 Page 43 of 65 Conducted Emission Report No.: GTS20210708001-1-10 Page 44 of 65 Version B Adapter: TPA-46B050100UU Radiated Emission Report No.: GTS20210708001-1-10 Page 45 of 65 Conducted Emission Adapter:GTA92-0501000US Radiated Emission Report No.: GTS20210708001-1-10 Page 46 of 65 Conducted Emission