2AWKQ-YJSBAT1Rechargeable lithium-ion batteries

REMOTE OPERATION 5%25%50%75%100% 1 2 3 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. Warning: 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 an tenna. 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.

FCC ID: 2AWKQ-YJSBAT1 ANT

version01 YUJET INTERNATIONAL CORPORATION LIMITED Declaration concerning Antenna Specification It is hereby declared that the product Model No.: YJS-BAT1 FCC ID : 2AWKQ-YJSBAT1 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for internal antenna type(s) described below: Model No. of antenna: YJS-BAT1 Type of antenna:Monopole Antenna Gain of the antenna: 2.5 dBi Frequency range:2412MHz~2462MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: YUJET INTERNATIONAL CORPORATION LIMITED Address: 3501 THE CENTRE, 99 QUEEN'S RD CENTRAL, HONG KONG, China City: HONG KONG ZIP / Postal code: N/A Country:China Place:ChinaDate: 2020-07-16 Signature:

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 §1.1307(b) FCC ID: 2AWKQ-YJSBAT1 EUT Specification EUTRechargeable lithium-ion batteries Frequency band (Operating) WLAN: 2.412GHz ~ 2.462GHz WLAN: 5.18GHz ~ 5.24GHz WLAN: 5.745GHz ~ 5.825GHz Others: 2.402GHz~2.480GHz Device category Portable (<20cm separation) Mobile (>20cm separation) Others ___ Exposure classificationOccupational/Controlled exposure (S = 5mW/cm2) General Population/Uncontrolled exposure (S=1mW/cm2) Antenna diversitySingle antenna Multiple antennas Tx diversity Rx diversity Tx/Rx diversity Max. output power15.26dBm (0.0336W) Antenna gain (Max)2.5 dBi 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/3006 1500-100000----56 (B) Limits for General Population/Uncontrol Exposures 300-1500----F/15006 1500-100000----130 Friis transmission formula: Pd=(Pout*G)\(4*pi*R2) Where Pd= Power density in mW/cm 2 Pout=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 Pd the limit of MPE, 1mW/cm2. If we know the maximum gain of the antenna and total power input to the antenna, through the calculation, we will know the distance where the MPE limit is reached. Measurement Result 2.4GHz WiFi: Operating Mode Channel Frequency Measured Power Tune up tolerance Max. Tune up Power Antenna Gain Power density at 20cm Power density Limits (mW/cm 2 ) (MHz)(dBm)(dBm)(dBm)(dBi)(mW/ cm 2 ) 802.11b 241213.43 13.43±114.432.50.00981 243714.12 14.12±115.122.50.01151 246215.26 15.26±116.262.50.01501

Report No.: 18220WC00063201FCC ID: 2AWKQ-YJSBAT1Page 1 of 48 Code:AB-RF-05-a FCC TEST REPORT Client Name: YUJET INTERNATIONAL CORPORATION LIMITED Address: 3501 THE CENTRE, 99 QUEEN'S RD CENTRAL, HONG KONG, China Product Name: Rechargeable lithium-ion batteries Date: Jul. 15, 2020 Shenzhen Anbotek Compliance Laboratory Limited Report No.: 18220WC00063201FCC ID: 2AWKQ-YJSBAT1Page 2 of 48 Code:AB-RF-05-a Contents 1. General Information ............................................................................................................................................... 5 1.1. Client Information ....................................................................................................................................... 5 1.2. Description of Device (EUT) ..................................................................................................................... 5 1.3. Auxiliary Equipment Used During Test ................................................................................................... 5 1.4. Description of Test Modes ........................................................................................................................ 6 1.5. List of channels ........................................................................................................................................... 7 1.6. Description Of Test Setup ......................................................................................................................... 8 1.7. Test Equipment List .................................................................................................................................... 9 1.8. Measurement Uncertainty ....................................................................................................................... 10 1.9. Description of Test Facility ...................................................................................................................... 10 2. Summary of Test Results ................................................................................................................................... 11 3. Conducted Emission Test ................................................................................................................................... 12 3.1. Test Standard and Limit .......................................................................................................................... 12 3.2. Test Setup .................................................................................................................................................. 12 3.3. Test Procedure .......................................................................................................................................... 12 4. Radiation Spurious Emission and Band Edge ................................................................................................ 17 4.1. Test Standard and Limit .......................................................................................................................... 17 4.2. Test Setup .................................................................................................................................................. 17 4.3. Test Procedure .......................................................................................................................................... 18 4.4. Test Data .................................................................................................................................................... 19 5. Maximum Peak Output Power Test .................................................................................................................. 26 5.1. Test Standard and Limit .......................................................................................................................... 26 5.2. Test Setup .................................................................................................................................................. 26 5.3. Test Procedure .......................................................................................................................................... 26 5.4. Test Data .................................................................................................................................................... 26 6. 6DB Occupy Bandwidth Test ............................................................................................................................. 29 6.1. Test Standard and Limit .......................................................................................................................... 29 6.2. Test Setup .................................................................................................................................................. 29 6.3. Test Procedure ............................................................................................................................... ........... 29 6.4. Test Data .................................................................................................................................................... 29 7. Power Spectral Density Test .............................................................................................................................. 33 7.1. Test Standard and Limit .......................................................................................................................... 33 7.2. Test Setup .................................................................................................................................................. 33 7.3. Test Procedure .......................................................................................................................................... 33 7.4. Test Data .................................................................................................................................................…

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FCC ID: 2AWKQ-YJSBAT1 Photo of Conducted Emission Measurement Photo of Radiation Emission Test