2BBVV-QUZZZRINGQuzzZ Ring

Overview and packing list Initial startup For the first time, place the ring on the charging base to charge and turn it on. Heart rate, blood oxygen sensor Wireless charging chip charging Align the three convex points of the ring with the concave part of the charging base, place the ring on the charging base, plug in the power supply, the indicator light of the charging base flashes, and the ring starts charging. After the battery is fully charged, the indicator light of the charging base is off. Ring Mental energy ring Temperature sensor O peration Guide Please read this guide carefully before use and reserve it for later use (Wireless charging base * including charging cable) Connect to your phone Download the APP Scan the QR code on the right or search for "QuzzZ" App in the app store of your phone. Product model: QuzzZ Ring Shenzhen Fenghe Do Qi Shi Technology Co., LTD Address: Room 205, Building 11, Maker Town, No. 4109, Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen Zip Code: 518000 Website: www.quzzzring.com Pairing and Connecting 1. Put the ring on the charging base, and the indicator light of the charging base flashes. 2. Open the "QuzzZ" App on the mobile terminal and log in or register your account. 3. Click "Start adding" in the "QuzzZ" App, select the device to be connected, and click "Connect" to add the device. * Please keep the ring battery higher than 20% before pairing to avoid pairing failure due to insufficient battery. During the pairing and connection process, please ensure that the Bluetooth and positioning functions of the mobile phone are enabled, and the distance between the phone and the ring is within the effective connection range. Wear a ring Please wear the ring on your finger in a comfortable size, not loose or tight. It is recommended to wear it on the index finger, middle finger and ring finger of the non-dominant hand to better monitor data. Caution: Wearing too much pine can affect heart rate and oxygen data collection. Product parameters Product model: QuzzZ Ring Main size: 2.98mm thick 8mm wide (without local bulge) Battery Type: Rechargeable polymer lithium-ion battery Battery capacity: 15mAh~22mAh Charging time: 30~60min Input: 5V 500mA (min) Bluetooth: BLE5.0 Waterproof classification: 5ATM Device requirements: Only devices running Android5.0 or ios11.0 and above are supported Sensor: triaxial acceleration sensor, optical heart rate sensor, optical blood oxygen sensor, temperature sensor Software version: go to "QuzzZ" App> Click Device Update to view the information The battery capacity and charging time were measured by the QuzzZ R&D team at room temperature (25°C), using a CCC certified 5V 500mA DC power adapter and QuzzZ standard charging base. Due to different product specifications, the corresponding battery capacity is different. The actual data may vary due to the use environment and individual charger differences and other factors. All specifications are laboratory test data. The manual is for reference only, the specific functions and product pictures may be slightly different from the actual products, please refer to the actual products. FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows: We, applicant Company Name: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 certify 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. FCC ID: 2BBVV-QUZZZRING If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-07-18 Name / Title: Wu Liang / software engineer Company: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 Fax Number:/ E-Mail: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BBVV-QUZZZRING QuzzZ Ring We, applicant Company Name: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-07-18 Name / Title: Wu Liang / software engineer Company: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 Fax Number:/ E-Mail: [email protected]

Covered Equipment Identification Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows: We, applicant Company Name: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 certify 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. FCC ID: 2BBVV-QUZZZRING If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-07-18 Name / Title: Wu Liang / software engineer Company: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 Fax Number:/ E-Mail: [email protected]

Covered Equipment Attestation Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Section 2.911(d)(5)(i)-(ii) of the Commission’s Rules (47 C.F.R.) we attest as follows for the product listed below: FCC ID Model name 2BBVV-QUZZZRING QuzzZ Ring We, applicant Company Name: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 certify 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. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-07-18 Name / Title: Wu Liang / software engineer Company: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 Fax Number:/ E-Mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2BBVV-QUZZZRING QuzzZ Ring For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-07-18 Name / Title: Wu Liang / software engineer Company: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 Fax Number:/ E-Mail: [email protected]

Confidentiality Request Letter For Certification Service in the USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 To whom it may concern Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we request confidentiality for the documentation of the following products: FCC ID Model name 2BBVV-QUZZZRING QuzzZ Ring For the products listed above, we request permanent confidentiality for all applicable exhibits as there are: • the Operational Description • the Block Diagram • the Schematics The above listed exhibits contain trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact us at the address shown below. Sincerely, Signature Date:2023-07-18 Name / Title: Wu Liang / software engineer Company: Shenzhen Fenghe Jinqishi Technology Co., Ltd Address: 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Phone: +86-15820581510 Fax Number:/ E-Mail: [email protected]

FCC ID: 2BBVV-QUZZZRING Fig. 1 Fig. 2 FCC ID: 2BBVV-QUZZZRING Fig. 3 Fig. 4 FCC ID: 2BBVV-QUZZZRING Fig. 5 Fig. 6 FCC ID: 2BBVV-QUZZZRING Fig. 7

FCC ID: 2BBVV-QUZZZRING Fig. 1 Fig. 2 FCC ID: 2BBVV-QUZZZRING Fig. 3 Fig. 4 FCC ID: 2BBVV-QUZZZRING Fig. 5 Fig. 6 FCC ID: 2BBVV-QUZZZRING Fig. 7

_____________________________________________________________________________________________________ LABEL AND LOCATION (Size: L4.0cm x3.0cm) Model: QuzzZ Ring FCC ID : 2BBVV-QUZZZRING Label Location

_____________________________________________________________________________________________________ LABEL AND LOCATION (Size: L4.0cm x3.0cm) Model: QuzzZ Ring FCC ID : 2BBVV-QUZZZRING Label Location

FCC ID: 2BBVV-QUZZZRING Fig. 1 Fig. 2 Antenna FCC ID: 2BBVV-QUZZZRING Fig. 3

FCC ID: 2BBVV-QUZZZRING Fig. 1 Fig. 2 Antenna FCC ID: 2BBVV-QUZZZRING Fig. 3

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. ............................................ : GTS20230602006-1-2 2BBVV-QUZZZRING Compiled by ( position+printed name+signature) .. : File administrators Peter Xiao Supervised by ( position+printed name+signature) .. : Test Engineer Jenny Zeng Approved by ( position+printed name+signature) .. : Manager Jason Hu Date of issue ..................................... : Jun. 29, 2023 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 ............................ : Shenzhen Fenghe Jinqishi Technology Co., Ltd Address ............................................. : 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Test specification .......................... : Standard ........................................... : 47CFR §1.1310 47CFR §2.1093 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 .................... : QuzzZ Ring Trade Mark ....................................... : QuzzZ Manufacturer ..................................... : Shenzhen Fenghe Jinqishi Technology Co., Ltd Model/Type reference ....................... : QuzzZ Ring Listed Models ................................... : N/A Exposure category ............................ : General population/uncontrolled environment EUT Type .......................................... : Portable Hardware Version ............................ : R01-V1.1 Software Version .............................. : QROS 1.0.0 Rating ............................................... : DC 5.0V Result ................................................ : PASS Report No.: GTS20230602006-1-2 Page 2 of 10 T E S T R E P O R T Test Report No. : GTS20230602006-1-2 Jun. 29, 2023 ______________________________________________________________________________________________ Date of issue Equipment under Test : QuzzZ Ring Model /Type : QuzzZ Ring Listed model : N/A Applicant : Shenzhen Fenghe Jinqishi Technology Co., Ltd Address : 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Manufacturer : Shenzhen Fenghe Jinqishi Technology Co., Ltd Address : 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, 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.: GTS20230602006-1-2 Page 3 of 10 Contents 1. S U M M A R Y .................................................................................. 4 1.1. Product Description .................................................................................................................................... 4 2. T E S T E N V I R O N M E N T ................................................................... 5 2.1. Address of the test laboratory ................................................................................................................... 5 2.2. Test Facility .................................................................................................................................................. 5 2.3. Environmental conditions .......................................................................................................................... 5 2.4. Statement of the measurement uncertainty ............................................................................................. 5 3 . M E T H O D O F M E A S U R EM E N T ......................................................... 6 3.1. Applicable Standard .................................................................................................................................... 6 3.2. Evaluation Method and Limit...................................................................................................................... 6 4. C O N D U C T E D P O W E R R E S U L T S ...................................................... 7 5. M A N U F A C T U R I N G T O L E R A N C E ...................................................... 8 6 . E V A L U A T I O N R E S U L TS ................................................................ 9 6.1. Standalone Evaluation ................................................................................................................................ 9 7. C O N C L U S I O N ............................................................................ 10 Report No.: GTS20230602006-1-2 Page 4 of 10 1. S U M M A R Y 1.1. Product Description Product Name QuzzZ Ring Trade Mark QuzzZ Model/Type reference QuzzZ Ring List Models N/A Model Declaration N/A Power supply: DC 5.0V Sample ID GTS20230602006-1-S0001-1#&GTS20230602006-1-S0001-2# Bluetooth Operation frequency 2402-24…

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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 RF Exposure evaluation Report Reference No. .................... : FCC ID. ............................................ : GTS20230602006-1-2 2BBVV-QUZZZRING Compiled by ( position+printed name+signature) .. : File administrators Peter Xiao Supervised by ( position+printed name+signature) .. : Test Engineer Jenny Zeng Approved by ( position+printed name+signature) .. : Manager Jason Hu Date of issue ..................................... : Jun. 29, 2023 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 ............................ : Shenzhen Fenghe Jinqishi Technology Co., Ltd Address ............................................. : 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Test specification .......................... : Standard ........................................... : 47CFR §1.1310 47CFR §2.1093 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 .................... : QuzzZ Ring Trade Mark ....................................... : QuzzZ Manufacturer ..................................... : Shenzhen Fenghe Jinqishi Technology Co., Ltd Model/Type reference ....................... : QuzzZ Ring Listed Models ................................... : N/A Exposure category ............................ : General population/uncontrolled environment EUT Type .......................................... : Portable Hardware Version ............................ : R01-V1.1 Software Version .............................. : QROS 1.0.0 Rating ............................................... : DC 5.0V Result ................................................ : PASS Report No.: GTS20230602006-1-2 Page 2 of 10 T E S T R E P O R T Test Report No. : GTS20230602006-1-2 Jun. 29, 2023 ______________________________________________________________________________________________ Date of issue Equipment under Test : QuzzZ Ring Model /Type : QuzzZ Ring Listed model : N/A Applicant : Shenzhen Fenghe Jinqishi Technology Co., Ltd Address : 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, China Manufacturer : Shenzhen Fenghe Jinqishi Technology Co., Ltd Address : 307, Building 12, Maker Town, No. 4109 Liuxian Avenue, Pingshan Community, Taoyuan Street, Nanshan District, Shenzhen, 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.: GTS20230602006-1-2 Page 3 of 10 Contents 1. S U M M A R Y .................................................................................. 4 1.1. Product Description .................................................................................................................................... 4 2. T E S T E N V I R O N M E N T ................................................................... 5 2.1. Address of the test laboratory ................................................................................................................... 5 2.2. Test Facility .................................................................................................................................................. 5 2.3. Environmental conditions .......................................................................................................................... 5 2.4. Statement of the measurement uncertainty ............................................................................................. 5 3 . M E T H O D O F M E A S U R EM E N T ......................................................... 6 3.1. Applicable Standard .................................................................................................................................... 6 3.2. Evaluation Method and Limit...................................................................................................................... 6 4. C O N D U C T E D P O W E R R E S U L T S ...................................................... 7 5. M A N U F A C T U R I N G T O L E R A N C E ...................................................... 8 6 . E V A L U A T I O N R E S U L TS ................................................................ 9 6.1. Standalone Evaluation ................................................................................................................................ 9 7. C O N C L U S I O N ............................................................................ 10 Report No.: GTS20230602006-1-2 Page 4 of 10 1. S U M M A R Y 1.1. Product Description Product Name QuzzZ Ring Trade Mark QuzzZ Model/Type reference QuzzZ Ring List Models N/A Model Declaration N/A Power supply: DC 5.0V Sample ID GTS20230602006-1-S0001-1#&GTS20230602006-1-S0001-2# Bluetooth Operation frequency 2402-24…

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January 11, 2023 Wireless Components LTCC R&D PULSE1608Chip Antenna Measurement For Holder-Smart Ring Project 2 Project Information • •Customer :Holder •Project Name : Ring • • Application :Ring Antenna size : 1.6 x 0.8 x 0.4 (mm) 2.4GHz chip antenna (ANT1608LL14R2400A) PCB size : 40 * 7 mm •Report date : 2022/09/01 •Version : 1 3 Pulse Chip Antenna_1608 2.4 GHz Chip Antenna Cu stomer PCB 4 Matching Circuit Matching Circuit Matching Value L4L5C29 Plastic ring matching circuit0ohm5.1nH1.8pF Metal ring matching circuit0ohm3.9nH1.8pF L5 L4 C29 ANT Feeding C29 L5 L4 Plastic ring Metal ring 5 Measurement Data Metal ring Data Antenna ANT1608LL14R2400A Frequency (MHz)240024422484 R.L. (dB) -5.06-20.69-4.33 Max. Gain (dBi) -15.53-14.31-16.36 Avg. Gain (dB) -20.41-18.26-21.40 Efficiency (%) 0.901.500.7 Plastic ring Data Antenna ANT1608LL14R2400A Frequency (MHz)240024422484 R.L. (dB) -4.60-14.32-4.16 Max. Gain (dBi ) -13.96-12.42-14.2 Avg. Gain (dB) -16.00-15.10-16.20 Efficiency (%) 2.53.12.4 6 Measurement Configuration +Z +Y +X [ Direction Definition ] [ Testing Environment ] Pulse ANT1 6 0 8LL1 4R2400A +X +Z +Y 7 Radiation Pattern(3D) 2400 MHz2442 MHz2484MHz 2400 MHz2442 MHz 2484MHz Plastic ring Metal ring z 8 Summary Ev en though it matches the intermediate frequency, But there may be some damage due to some Rework on the board, And the original matching circuit planning will affect the efficiency of the antenna in the clearance area. 9 Thank You

January 11, 2023 Wireless Components LTCC R&D PULSE1608Chip Antenna Measurement For Holder-Smart Ring Project 2 Project Information • •Customer :Holder •Project Name : Ring • • Application :Ring Antenna size : 1.6 x 0.8 x 0.4 (mm) 2.4GHz chip antenna (ANT1608LL14R2400A) PCB size : 40 * 7 mm •Report date : 2022/09/01 •Version : 1 3 Pulse Chip Antenna_1608 2.4 GHz Chip Antenna Cu stomer PCB 4 Matching Circuit Matching Circuit Matching Value L4L5C29 Plastic ring matching circuit0ohm5.1nH1.8pF Metal ring matching circuit0ohm3.9nH1.8pF L5 L4 C29 ANT Feeding C29 L5 L4 Plastic ring Metal ring 5 Measurement Data Metal ring Data Antenna ANT1608LL14R2400A Frequency (MHz)240024422484 R.L. (dB) -5.06-20.69-4.33 Max. Gain (dBi) -15.53-14.31-16.36 Avg. Gain (dB) -20.41-18.26-21.40 Efficiency (%) 0.901.500.7 Plastic ring Data Antenna ANT1608LL14R2400A Frequency (MHz)240024422484 R.L. (dB) -4.60-14.32-4.16 Max. Gain (dBi ) -13.96-12.42-14.2 Avg. Gain (dB) -16.00-15.10-16.20 Efficiency (%) 2.53.12.4 6 Measurement Configuration +Z +Y +X [ Direction Definition ] [ Testing Environment ] Pulse ANT1 6 0 8LL1 4R2400A +X +Z +Y 7 Radiation Pattern(3D) 2400 MHz2442 MHz2484MHz 2400 MHz2442 MHz 2484MHz Plastic ring Metal ring z 8 Summary Ev en though it matches the intermediate frequency, But there may be some damage due to some Rework on the board, And the original matching circuit planning will affect the efficiency of the antenna in the clearance area. 9 Thank You

FCCID: 2BBVV-QUZZZRING 1 Case No. : GTS20230602006-1-1 Ambient Condition: 23 °C, 48 %RH, Atmos100.1Kpa, Test Date: 2023.6.26 Test Engineer: Jenny zeng Appendix A.1: DTS Bandwidth Test Result Test Mode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE Ant1 2402 0.588 2401.676 2402.264 0.5 PASS 2440 0.652 2439.676 2440.328 0.5 PASS 2480 0.512 2479.672 2480.184 0.5 PASS FCCID: 2BBVV-QUZZZRING 2 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 FCCID: 2BBVV-QUZZZRING 3 BLE_Ant1_2480 FCCID: 2BBVV-QUZZZRING 4 Appendix A.2: Occupied Channel Bandwidth Test Result Test Mode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE Ant1 2402 1.0533 2401.485 2402.538 --- --- 2440 1.0429 2439.495 2440.538 --- --- 2480 1.0474 2479.489 2480.536 --- --- FCCID: 2BBVV-QUZZZRING 5 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 FCCID: 2BBVV-QUZZZRING 6 BLE_Ant1_2480 FCCID: 2BBVV-QUZZZRING 7 Appendix A.3: Maximum conducted output power Test Result Peak Test Mode Antenna Frequency[MHz] Conducted Peak Powert[dBm] Conducted Limit[dBm] Verdict BLE Ant1 2402 -4.22 ≤30 PASS 2440 -1.66 ≤30 PASS 2480 -1.51 ≤30 PASS FCCID: 2BBVV-QUZZZRING 8 Appendix A.4: Maximum power spectral density Test Result Test Mode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE Ant1 2402 -23.28 ≤8.00 PASS 2440 -20.77 ≤8.00 PASS 2480 -20.58 ≤8.00 PASS FCCID: 2BBVV-QUZZZRING 9 Test Graphs BLE_Ant1_2402 BLE_Ant1_2440 FCCID: 2BBVV-QUZZZRING 10 BLE_Ant1_2480 FCCID: 2BBVV-QUZZZRING 11 Appendix A.5: Band edge measurements Test Result Test Mode Antenna ChName Frequency[MHz] RefLevel[dBm] Result[dBm] Limit[dBm] Verdict BLE Ant1 Low 2402 -4.64 -49.56 ≤-24.64 PASS High 2480 -1.90 -48.21 ≤-21.9 PASS FCCID: 2BBVV-QUZZZRING 12 Test Graphs BLE_Ant1_Low_2402 BLE_Ant1_High_2480 FCCID: 2BBVV-QUZZZRING 13 Appendix A.6: Conducted Spurious Emission Test Result Test Mode Antenna Frequency[MHz] FreqRange [MHz] RefLevel [dBm] Result[dBm] Limit[dBm] Verdict BLE Ant1 2402 Reference -5.04 -5.04 --- PASS 30~1000 -5.04 -55.4 ≤-25.04 PASS 1000~26500 -5.04 -47.39 ≤-25.04 PASS 2440 Reference -2.18 -2.18 --- PASS 30~1000 -2.18 -57.68 ≤-22.18 PASS 1000~26500 -2.18 -47.56…

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