2AHASXCS7-2002Smart Snapshot Battery Doorbell

Caution : a) PCB of battery should not be crushed and twisted. b) Cell body should not be blended. c) Do not disassemble and Do not dispose of in fire. d) Operation temperature range 45 FCC Caution: Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. IMPORTANT NOTE: Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. FCC Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.

U.S. AGENT LETTER OF ATTESTATION Date: 2023-02-08 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(7) Filing FCC ID: 2AHASXCS7-2002 JEM ACCESSORIES INC. certifies that, as of the date of the filing of the application, JEM ACCESSORIES INC. is our designated U.S. agent for service of process for the above referenced FCC ID. 2AHASXCS7-2002. JEM ACCESSORIES INC. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. JEM ACCESSORIES INC. accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: JEM ACCESSORIES INC. Address: 32 Brunswick Avenue, Edison, New Jersey, United States,08817 Tel.: 908-222-7501 Email: [email protected] Signed by (printed name): Eli Dabbah Signature: Applicant: JEM ACCESSORIES INC. Add: 32 Brunswick Avenue, Edison, New Jersey, United States,08817 Tel: 908-222-7501 Email: [email protected] Signed by (printed name): Eli Dabbah Signature:

ATTESTATION STATEMENT Applicant: JEM ACCESSORIES INC. Add: 32 Brunswick Avenue, Edison, New Jersey, United States,08817 Tel: 908-222-7501 Fax: 908.222.7504 Email: [email protected] Date: 2023-02-08 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements Part 2.911(d)(5)(i), (ii) Filing FCC ID: 2AHASXCS7-2002 JEM ACCESSORIES INC., 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. And JEM ACCESSORIES INC., 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, Signed by (printed name): Eli Dabbah Title: Manager Signature:

N S 4 1 5 0 AC7916A U2（MCU） U5（DC－DC） LP3220 BAT D C B A 12345678 A B C D 87654321 U 7 ( A M P ) +3.3V SENSOR(DVP) 433_KEY OR AD_KEY U3(433) CMT2150A 25Q64 U1(Flash) SFGAT(3.3V) A D _ K E Y A N T CDS/IR MICRO_USB ANT1 SPEAKER U16(SENSOR) C A L L +3.3V U13（LDO） SK6013BS5-28 IOVDD_28 +3.3V WIFI J2(FPC_22PIN) KEY IRLED SPK MIC PIR HY2130A U6(Discharge protection) HE4056A U4(charge) DC-IN BT/BLE: 2402-2480MHz Wi-Fi: 2412-2462MHz 26MHz CRYSTAL CRYSTAL 24M 433.92MHz

JEM ACCESSORIES INC. Add: 32 Brunswick Avenue, Edison, New Jersey, United States,08817 Tel：908-222-7501 Fax: 908.222.7504 E-mail：[email protected] FCC Authorization 2022/12/27 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, JEM ACCESSORIES INC. the undersigned, hereby authorize Shenzhen Accurate Technology Co.,Ltd to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Shenzhen Accurate Technology Co.,Ltd on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988,21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Printed Name: Eli Dabbah Title: Manager

Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AHASXCS7-2002 External Photos Page 1 of 3 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AHASXCS7-2002 External Photos Page 2 of 3 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AHASXCS7-2002 External Photos Page 3 of 3

Shenzhen Accurate Technology Co., Ltd. Project No.: RA221109-52746E-RF LABEL AND LOCATION Page 1 of 1 FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AHASXCS7-2002 Internal Photos Page 1 of 6 Internal photos Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AHASXCS7-2002 Internal Photos Page 2 of 6 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AHASXCS7-2002 Internal Photos Page 3 of 6 433.92MHz Antenna Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AHASXCS7-2002 Internal Photos Page 4 of 6 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AHASXCS7-2002 Internal Photos Page 5 of 6 Shenzhen Accurate Technology Co., Ltd. FCC ID: 2AHASXCS7-2002 Internal Photos Page 6 of 6 Antenna-BT&WIFI

Circuit Description Battery (DC 3.7V) provides energy for the Bluetooth chip (AC7916A ); Crystal oscillator (24MHz) provides the clock signal for the Wifi chip. Bluetooth signals get through a matching circuit, and then transmitted to the space through the antenna (2402-2480MHz). When the product is connected, the product can in two-way communication with other Wifi Devices, and then the device’s Wifi module sends Wifi signals into space, the product receives the Wifi signal through an antenna, transmission to the Bluetooth chip via matching circuit. Press the doorbell, start 433.92MHz transmission signal, and then a receiving box will ring. Wi-Fi: 2412-2462MHz Modulation Technique BLE: GFSK Wi-Fi: DSSS, OFDM 433.92MHz: ASK For 433.92 MHz Radio, the transmission protocols descriptions as follow: Duty Cycle: Ton1 = 1.5362ms Ton2 = 0.5507ms Ton = (10*1.5362+15*0.5507) ms=23.623 ms Tp = 61.034 ms The transmission protocols descriptions as follow: Ton2: Zoom in B: Ton1: Zoom in A: N2 Tp: T=0.5507m s B T=1.5362m s A 46.957ms 61.304ms

Shenzhen Accurate Technology Co., Ltd. Report No.: RA221109-52746E-RF-00B Version 12: 2021-11-09 Page 13 of 65 FCC- BLE&2.4G Wi-Fi FCC §15.247 (i) & §1.1307 (b) & §2.1091- MPE-Based Exemption Applicable Standard According to subpart 15.247 (i) and subpart 2.1091 systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. According to KDB 447498 D04 Interim General RF Exposure Guidance MPE-Based Exemption: An alternative to the SAR-based exemption is provided in § 1.1307(b)(3)(i)(C), for a much wider frequency range, from 300 kHz to 100 GHz, applicable for separation distances greater or equal to λ/2π, where λ is the free-space operating wavelength in meters. The MPE-based test exemption condition is in terms of ERP, defined as the product of the maximum antenna gain and the delivered maximum time-averaged power. For this case, a RF source is an RF exempt device if its ERP (watts) is no more than a frequency-dependent value, as detailed tabular form in Appendix B. These limits have been derived based on the basic specifications on Maximum Permissible Exposure (MPE) considered for the FCC rules in § 1.1310(e)(1). Ris the minimum separation distance in meters f = frequency in MHz Result For worst case: Mode Frequency (MHz) Tune up Conducted Power Antenna Gain ERP Evaluation Distance (m) ERP Limit (mW) (dBm) (dBi)(dBd)(dBm)(mW) BLE 2402-2480 3.0 2.99 0.84 3.84 2.421 0.2 768 Wi-Fi 2412-2462 15.0 2.99 0.84 15.84 38.371 0.2 768 Note: 1. The tune up conducted power and antenna gain was declared by the applicant. 2. The BT, Wi-Fi and SRD function cannot simultaneous transmitting. To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Compliant.

D C B A 654321 A B C D KEY FLASH POWER MCU SENSOR 3V3 for 300mA SENSOR_POWER 433 R b BATTERY DETECT BAT_DET0~2.0v [2] TF 1 CS 2 SO/IO1 3 WP/IO2 4 GND 5 IO0/SI 6 SCK 7 IO3/HOLD 8 VCC U1 25Q64 C3 105 C7 NC/30P 1 EN 2 GND 3 LX 4 VIN 5 FB U5 LP3220 C45 22uFC48 47P C47 105 C46 22uF L7 2.2uH R27 10K R28 150K 1% R31 33K 1% C49 106 C51 105 C50 106 R30 100K G SD Q1 NC/LPM9013 R16 NC/100K R34 NC/100R C1 15P/NC C2 15/NC C23 105 C8 105 C28 105 C29 475 C30 105 R5 0R C26 105 C10 NC C11 NC C12 1pF C14 1pF 1 OSCI 2 GND 3 OSCO 4 GND Y2 24M C24 106 C33 105 C34 106 C25 105 C31 106 C35 105 C32 105 C58 105 C59 106 R13 FB300R/200mA R25 FB300R/200mA L6 10uH C60 105 C61 106 C62 106 AC7916A (QFN76) 1 WFRF 2 WFVDD14 3 XOSCI 4 XOSCO 5 IOVDD 6 PC10/LCD_SYNC1/EMI_WR 7 PC9/LCD_SYNC0 8 PC8/LCD_CLK/EMI_D7 9 PC7/LCD_D0/EMI_D6 10 PC6/LCD_D1/EMI_D5 11 PC5/LCD_D2/EMI_D4 12 PC4/LCD_D3/EMI_D3 13 PC3/LCD_D4/EMI_D2 14 PC2/LCD_D5/EMI_D1 15 PC1/LCD_D6/EMI_D0 16 PC0/LCD_D7 17 PB7/SD0_CLK 18 PB6/SD0_CMD 19 PB5/SD0_D0 2 0 P B 4 / S D 0 _ D 1 2 1 P B 3 / S D 0 _ D 2 2 2 P B 2 / S D 0 _ D 3 2 3 P B 8 / S D G A T 2 4 D V D D 2 5 P D 5 / S P I 0 _ D 0 2 6 P D 4 / S P I 0 _ C L K 2 7 P D 3 / S P I 0 _ D 3 2 8 P D 6 / S F G A T 2 9 P D 2 / S P I 0 _ D 2 3 0 P D 1 / S P I 0 _ D 1 3 1 P D 0 / S P I 0 _ C S 3 2 P B 1 / A D C 3 3 3 P B 0 3 4 H U S B D M 3 5 H U S B D P 3 6 P R 1 / O S C 3 2 K O 3 7 P R 0 / O S C 3 2 K I 3 8 R T C V D D 3 3 39 DCVDD14 40 VBAT 41 SW 42 PGND 43 FUSBDM 44 FUSBDP 45 IOVDD 46 SEN0_SYNC1/PA10 47 SEN0_SYNC0/PA9 48 SEN0_CLK/PA8 49 SEN0_D7/PA7 50 SEN0_D6/PA6 51 SEN0_D5/PA5 52 SEN0_D4/PA4 53 SEN0_D3/PA3 54 SEN0_D2/PA2 55 SEN0_D1/PA1 56 SEN0_D0/PA0 57 NC 5 8 D A C L 5 9 N C 6 0 D A C R 6 1 D A C V D D 6 2 V C M 6 3 H P V S S 6 4 A H V D D 6 5 M I C 1 P / P H 9 6 6 M I C 1 N / P H 8 6 7 A U X 1 / P H 7 6 8 M I C 3 P / P H 6 6 9 M I C 3 N / P H 5 7 0 A U X 3 / P H 4 7 1 A D C 1 1 / P H 3 7 2 P H 2 7 3 I I C _ S D A / P H 1 7 4 I I C _ S C L / P H 0 7 5 W F V D D 1 4 7 6 W F V D D 3 3 A 77 VSS U2 AC7916A_QFN76 C76 105 R460R/NC R 1 2 4 7 K LED6Red0603 L 1 1 8 0 n H L2 33nH L3 18nH L4 220pF Y1 26MHz_49S R241R C 5 4 0 . 1 u F / 1 V C 4 0 2 . 2 u F / 1 0 V C 4 3 C 0 6 0 3 H Y 1 0 u F / 6 V 3 C 4 4 0 . 1 u F / 1 0 V 1 VIN 2 G N D 3 EN 4 ADJ 5 VOUT U13 SOT23-5 SK6013BS5-28 R7 4.7R C17 15pF C18 NC C19 15pF C13 NC C968pF C6 220pF C21 0.1uF C22NC R10 10K/NC C52 0603C 10uF C 6 5 C 0 4 0 2 0 . 1 u F 3 1 2 Q4 SOT-23 SI2302 R19 470R L8 30R@100MHZ C27 2.2uF 1 ANT Y3/NC 32.768KHz 1 LED 2 VDD 3 GND 4 PA 5 K1_CSB/K3_DATA 6 NC/K2_CLK 7 NC/K1_CSB 8 XTAL U3 2 1 ANT2 IPEX R 3 6 0 R 1 2 3 J3 HEAD1X3A UART 1 2 3 45 6 8 7 J5 R2322R C20 C0402HY 2.2uF/10V C56 C0402HY NC A1 AVDD28 B3 HSYNC A3 VSYNC A2 SBCL A4 D7 D2 D0 B2 SBDA C3 D1 C2 MCLK C1 TXLOW B1 AGND B5 DGND D1 PWDN B4 D5 A5 D6 C4 PCLK D3 D2 D4 D3 D5 IOVDD C5 D4 U16 GC0328 R2222R C53 C0402HY 2.2uF/10V R310K_1% 1 TEMP 2 PROG 3 GND 4 VCC 5 BAT 6 STDBY 7 CHRG 8 CE 9 EP U4 HE4056A LED1white R6 330R C37 106 R9 1.2K C38 106 C39 C0402HY 18pF R144.7K R154.7K C4 C0402 1uF C5 C0402 1uF R1 10K C15 104 C16 106 R8 1R R4 0R R2 0R/NC 12 R11 47K/1% R17 43K/1% R18 1M R20 0R 6 S H 4 7 S H 1 5 GND 4 ID 3 D+ 2 D- 1 VBUS J1 MICROXNJ 1 1 2 2 J4 IRCUT_JACK_20 C36 104 R 2 1 4 7 K R26 10P R29 R0402HY 1R 1 4 1 4 1 3 1 3 12 12 11 11 10 10 9 9 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 FPC2 XW05200-12 1 2 3 J7 HEAD1X3A UART 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 J2 13 24 SW7 SW_6X6 1 2 3 4 CN1 SMD2.0-2P_90 1 VT 2 GND 3 VDD 4 VM 5 VM U6 HY2130A R32 10R C41 C0402 0.1uF SPI0_CS SPI0_DI SFGAT SFGAT SPI0_CLK SPI0_DO SFGAT 3V3 FBFB IOVDD_CTL IOVDD 3V3 SD0_D0 SD0_CLK SD0_CMD 3 2 K O S C I 3 2 K O S C O M I C 1 N FUSB_DM FUSB_DP S P I 0 _ C L K S P I 0 _ D O S P I 0 _ D I S P I 0 _ C S 32KOSCI 32KOSCO IOVDD WFVDD14 R T C V D D 3 3 D A C V D D A H V D D WFVDD14DVDDDACVDDVCMAHVDDIOVDD RTCVDD33 V C M S F G A T M I C 1 P SW BAT WF_OSCI WF_OSCO WF_OSCI WF_OSCO WF_OSCI WF_OSCO IOVDD D V D D IOVDD W F V D D 1 4 W F V D D 3 3 A WFVDD33ABATDCVDD143V3 DCVDD14 UART_TX DCVDD14 SW R S T M U T E S D 0 _ D E T I O V D D _ C T L SDGAT S D G A T A D _ K E Y UART_RX I 2 C _ S D A I 2 C _ S C L IOVDD AD_KEY VDD VDD LED AVDD_2V8 IOVDD_28 3V3 SEN0_D2 SEN0_D3 SEN0_D4 SEN0_D5 SEN0_D6 SEN0_D7 SEN0_D0 SEN0_D1 SEN0_VSYN SEN0_HSYN SEN0_PCLK S E N 0 _ X C L K 3V3 BAT_DET G N D AD_KEY IR_FEED 433_KEY 4 3 3 _ K E Y IRLED_EN BAT IOVDD UART_TX R E C _ N R E C _ P AVDD_2V8 IOVDD_28 I2C_SDA I2C_SCL SEN0_XCLK PCLK USB5V USB5V FUSB_DP FUSB_DM I2C_SDA I2C_SCL SEN0_PCLK SEN0_HSYN SEN0_VSYN SEN0_D7 SEN0_D6 SEN0_D5 SEN0_D4 SEN0_D3 SEN0_D2 SEN0_D1 SEN0_D0 IOVDD_28 3V3 MIC1N MIC1P REC_N REC_P BAT BAT MUTE DAC UART_RX RLED AD_KEY SD0_VDD 3V3 DAC IR_FEED IRLED_EN AD_KEY RLED BAT RST IOVDD B A T _ D E T PIR_IN PIR_IN SD0_CLK SD0_CMD SD0_D0 SD0_DET PB2 PB3 PC2 SD0_VDD P B 3 P B 2 PC2 DACVDD AGND BAT- GND BAT- BAT CMT2150A

SPECIFICATION FOR APPROVAL Supplier name: Shenzhen SEND COMMUNICATIONS Technology Co., Ltd Supplier address: Room 202, B building, Baochengtaizhihui Industry Park, Jixiang Cummunity Caiyun Road, No.8, Longgang, Shenzhen

★ Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “ ”. Shenzhen Accurate Technology Co., Ltd. is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 12: 2021-11-09 Page 1 of 65 FCC- BLE&2.4G Wi-Fi TEST REPORT Applicant Name : JEM ACCESSORIES INC. Address : 32 Brunswick Avenue,Edison,New Jersey,United States 08817 Report Number : RA221109-52746E-RF-00B FCC ID: 2AHASXCS7-2002 Test Standard (s) FCC PART 15.247 Sample Description Product Type: Smart Snapshot Battery Doorbell Model No.: XCS7-2002 Multiple Model(s) No.: N/A Trade Mark: XTREME Date Received: 2022/11/09 Report Date: 2022/12/05 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Andy Yu Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: RA221109-52746E-RF-00B Version 12: 2021-11-09 Page 2 of 65 FCC- BLE&2.4G Wi-Fi TABLE OF CONTENTS DOCUMENT REVISION HISTORY ......................................................................................................................... 4 GENERAL INFORMATION ....................................................................................................................................... 5 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 5 OBJECTIVE ................................................................................................................................................................... 5 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 6 SYSTEM TEST CONFIGURATION .......................................................................................................................... 7 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 7 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 8 EUT EXERCISE SOFTWARE .......................................................................................................................................... 8 DUTY CYCLE ................................................................................................................................................................ 8 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 8 EXTERNAL I/O CABLE .................................................................................................................................................. 8 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 9 SUMMARY OF TEST RESULTS ............................................................................................................................. 10 TEST EQUIPMENT LIST ......................................................................................................................................... 11 FCC §15.247 (I) & §1.1307 (B) & §2.1091- MPE-BASED EXEMPTION ................................................................. 1 3 APPLICABLE STANDARD ............................................................................................................................................ 13 RESULT ...................................................................................................................................................................... 13 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 14 APPLICABLE STANDARD ............................................................................................................................................ 14 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 14 FCC §15.207 (A) – AC LINE CONDUCTED EMISSIONS .................................................................................... 15 APPLICABLE STANDARD ............................................................................................................................................ 15 EUT SETUP ................................................................................................................................................................ 15 EMI TEST RECEIVER SETUP ....................................................................................................................................... 15 TEST PROCEDURE ...............................................................................................................…

Text truncated - open the document above for the full version.

Shenzhen Accurate Technology Co., Ltd. Project No.: RA221109-52746E-RF Test Photos Page 1 of 2 Photo of Conducted Emission Measurement Shenzhen Accurate Technology Co., Ltd. Project No.: RA221109-52746E-RF Test Photos Page 2 of 2 Photo of Radiated Emission Measurement (Below 1G) Photo of Radiated Emission Measurement (Above 1G)