RF exposure Info

FCC ID: Z9G-EDF91

RF Exposure Info

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                                   SGS-CSTC Standards Technical Services Co., Ltd.
                                   Shenzhen Branch




                                                                          Report No.: SZEM190601558703
                                                                          Page:        1 of 8
1    Cover page


                       SAR Evaluation Report
Application No.:                 SZEM1906015587CR
Applicant:                       Edifier International Limited
Address of Applicant:            P.O. Box 6264 General Post Office Hong Kong
Manufacturer:                    Beijing Edifier Technology Co., Ltd.
Address of Manufacturer:         8th floor, ZuoAn Building, NO.68 BeiSiHuanXiLu, Haidian District, Beijing
                                 100080, CHINA
Factory:                         Dongguan Edifier Technology Co., Ltd.
Address of Factory:              No.2 Gongyedong Road, Songshan Lake Sci&Tech Industry Park, Dongguan,
                                 Guangdong 523808, PR.China
Equipment Under Test (EUT):
EUT Name:                        Bluetooth Stereo Headphones
Model No.:                       W800BT, W806BT           ♣
♣                                Please refer to section 4.1 of this report which indicates which model was
                                 actually tested and which were electrically identical.
Trade mark:                      EDIFIER
FCC ID:                          Z9G-EDF91
Standards:                       47 CFR Part 1.1307
                                 47 CFR Part 2.1093
                                 KDB447498D01 General RF Exposure Guidance v06
Date of Receipt:                 2019-04-01
Date of Test:                    2019-04-09 to 2019-04-15
Date of Issue:                   2019-08-05
Test Result :                      PASS*

*   In the configuration tested, the EUT complied with the standards specified above.




            Keny Xu
      EMC Laboratory Manager


                               SGS-CSTC Standards Technical Services Co., Ltd.
                               Shenzhen Branch
                                                               Report No.: SZEM190601558703
                                                               Page:       2 of 8


2    Version

                                            Revision Record
        Version        Chapter               Date                 Modifier       Remark

        01                               2019-08-05                              Original




    Authorized for issue by:




                                  Harry Wu /Project Engineer




                                  Eric Fu /Reviewer


                                                SGS-CSTC Standards Technical Services Co., Ltd.
                                                Shenzhen Branch
                                                                                                      Report No.: SZEM190601558703
                                                                                                      Page:       3 of 8


3         Contents
                                                                                                                                                               Page
1       COVER PAGE .............................................................................................................................................. 1
2       VERSION ...................................................................................................................................................... 2
3       CONTENTS .................................................................................................................................................. 3
4       GENERAL INFORMATION .......................................................................................................................... 4
    4.1         GENERAL DESCRIPTION OF EUT ............................................................................................................. 4
    4.2         TEST LOCATION...................................................................................................................................... 5
    4.3         TEST FACILITY........................................................................................................................................ 5
    4.4         DEVIATION FROM STANDARDS ................................................................................................................. 6
    4.5         ABNORMALITIES FROM STANDARD CONDITIONS ....................................................................................... 6
    4.6         OTHER INFORMATION REQUESTED BY THE CUSTOMER ............................................................................. 6
5       SAR EVALUATION ...................................................................................................................................... 7
    5.1     RF EXPOSURE COMPLIANCE REQUIREMENT ............................................................................................ 7
       5.1.1 Standard Requirement ..................................................................................................................... 7
       5.1.2 Limits ................................................................................................................................................ 7
       5.1.3 EUT RF Exposure ......................................................................................................................... 7-8


                              SGS-CSTC Standards Technical Services Co., Ltd.
                              Shenzhen Branch
                                                                 Report No.: SZEM190601558703
                                                                 Page:       4 of 8


4    General Information
4.1 General Description of EUT
    Power supply:                   DC 3.7V by Lithium polymer battery(850mAh),
                                    Recharge Voltage: DC5V, 500mA.
For BT
    Operation Frequency:            2402MHz to 2480MHz
    Bluetooth Version:              V5.0
    Spectrum Spread                 Frequency Hopping Spread Spectrum(FHSS)
    Technology:
    Modulation Type:                GFSK, π/4DQPSK, 8DPSK
    Number of Channels:             79
    Channel Spacing:                1MHz
    Antenna Type:                   Integral Antenna
    Antenna Gain:                   1.26dBi
For BLE
    Operation Frequency:            2402MHz to 2480MHz
    Bluetooth Version:              V5.0
    Modulation Type:                GFSK
    Number of Channels:             40
    Channel Spacing:                2MHz
    Antenna Type:                   Integral Antenna
    Antenna Gain:                   1.26dBi



     Remark:
     Model No.: W800BT, W806BT
     Only the model W800BT was tested, since the electrical circuit design, layout, components used, internal
     wiring and functions were identical for W806BT, with only difference on product model.


                              SGS-CSTC Standards Technical Services Co., Ltd.
                              Shenzhen Branch
                                                               Report No.: SZEM190601558703
                                                               Page:       5 of 8


4.2 Test Location
    All tests were performed at:
    SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch
    No. 1 Workshop, M-10, Middle section, Science & Technology Park, Shenzhen, Guangdong, China
    518057
    Telephone: +86 (0) 755 2601 2053 Fax: +86 (0) 755 2671 0594
    No tests were sub-contracted.

4.3 Test Facility
    The test facility is recognized, certified, or accredited by the following organizations:
    • CNAS (No. CNAS L2929)
    CNAS has accredited SGS-CSTC Standards Technical Services Co., Ltd. Shenzhen Branch EMC
    Lab to ISO/IEC 17025:2005 General Requirements for the Competence of Testing and Calibration
    Laboratories (CNAS-CL01 Accreditation Criteria for the Competence of Testing and Calibration
    Laboratories) for the competence in the field of testing.
    • A2LA (Certificate No. 3816.01)
    SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory is accredited by the
    American Association for Laboratory Accreditation(A2LA). Certificate No. 3816.01.
    • VCCI
    The 3m Fully-anechoic chamber for above 1GHz, 10m Semi-anechoic chamber for below 1GHz,
    Shielded Room for Mains Port Conducted Interference Measurement and Telecommunication Port
    Conducted Interference Measurement of SGS-CSTC Standards Technical Services Co., Ltd. have
    been registered in accordance with the Regulations for Voluntary Control Measures with Registration
    No.: G-20026, R-14188, C-12383 and T-11153 respectively.
    • FCC –Designation Number: CN1178
    SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized
    as an accredited testing laboratory.
    Designation Number: CN1178. Test Firm Registration Number: 406779.
    • Innovation, Science and Economic Development Canada
    SGS-CSTC Standards Technical Services Co., Ltd., Shenzhen EMC Laboratory has been recognized
    by ISED as an accredited testing laboratory.
    CAB identifier: CN0006.
    IC#: 4620C.


                   SGS-CSTC Standards Technical Services Co., Ltd.
                   Shenzhen Branch
                                             Report No.: SZEM190601558703
                                             Page:       6 of 8


4.4 Deviation from Standards
   None.

4.5 Abnormalities from Standard Conditions
   None.

4.6 Other Information Requested by the Customer
   None.


                                                         SGS—CSTC Standards Technical Services Co., Ltd.
                                                         Shenzhen Branch

                                                                                                                                  Report No.: SZEM190601558703
                                                                                                                                  Page:                   7 of 8


5           SAR Evaluation
5.1        RF Exposure Compliance Requirement
5.1.1       Standard Requirement
        According to KDB447498D01 General RF Exposure Guidance v06
        4.3.1. Standalone SAR test exclusion considerations
              Unless specifically required by the published RF exposure KDB procedures, standalone 1—q
        head or body and 10—g extremity SAR evaluation for general population exposure conditions, by
        measurement or numerical simulation, is not required when the corresponding SAR Exclusion
        Threshold condition, listed below, is satisfied.
5.1.2 Limits
        The 1—g and 10—g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances
        < 50 mm are determined by:

        [{max. power of channel, including tune—up tolerance, mW)/{min. test separation distance, mm)] ®
        [Nf(GHz)] 3.0 for 1—g SAR and s 7.5 for 10—g extremity SAR, where


            f(GHz) is the RF channel transmit frequency in GHz
            Power and distance are rounded to the nearest mW and mm before calculation!"
            The result is rounded to one decimal place for comparison
        The test exclusions are applicable only when the minimum test separation distance is s 50 mm and
        for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation
        distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion
5.1.3 EUT RF Exposure
For BT

          The Max. power(including tung—up tolerance) is 6.82 dBm on the middle channel                                                                         2441        GHz (*)
          6.82 dBm logarithmic terms convert to numeric result is nearly 4.81 mW
          According to the formula. calculate the test exclusion thresholds:
          [{max. powerof channel, including tune—up tolerance, mW)/({min. test separation distance, mm)] :
          [vF(GHz)]
          General RF Exposure = (4.81 mW / 5 mm) x [2.441 GHz =1.50                                                                                             (1)
          SAR requirement:
          S=3.0                                                                                                                                                 (2)
          (1) < (2)
          So the SAR report is not required.

          (*) Max. power refer to Report No.:SZEM190601558701




                                       Unless otherwise agreed in wriing, this document is Issued by the Company subject to its General Conditions of Service printed
                                       overleaf, available on request or accessible at https//waw.sgs.com/enTerms—and—Gonditions.aspx and, for electronic format documents,
                                       Subject to Terms and Gondiions for bleattonte Documente at hilgyJwey—ags.comfenFfermsang:condittonsrTerms—s—opoument.sspr
                                       Attention is drawn to the limitation of labilty, indemnification and Jurisdiction Issues defined therein. Any holder of this document is
                                       advised that information contained hereon reflects the Company‘s findings at the time of its intervention only and within the !imits of
                                       Client‘s instructions, if any. The Company‘s sole responsibilty is to its Client and this document does not exonerate parties to a
                                       fransaction from excreising all their rights and obligations under the transaction documents. This document cannot be reproduced
                                       except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or
                                       appearanceof this document is unlawitl and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the
                                       results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 30 days only.
                                       Attention: To check the authonticity of testing /Inspection report & certificate, please contact us at telephane: (86—758) 8307 1443,
                                       or email: CN.Doecheck@sgs.com
                                           No.t Workshop, M—10,Midde Secton, Sience 8 Technology Park, Shenthen,Chine §18057...   t (B6—758)2601203 1 (6—756) 26710504     winwcsgogroup.com.cn
 Shenwhen Bantweali{Be—met Labontory       #B 20— RARRINEM—10—E7B                                             AB&8: 518057        .t (B6—755)26012053 1 (86—758)26710504   syschina@sgs.com
                                       t
                                                                                                                                                    Member of the SGS Group (SGS SA)


                                SGS-CSTC Standards Technical Services Co., Ltd.
                                Shenzhen Branch
                                                                     Report No.: SZEM190601558703
                                                                     Page:       8 of 8

For BLE

     The Max. power (including tune-up tolerance) is 8.59 dBm on the lowest channel   2.402   GHz (*)
     8.59 dBm logarithmic terms convert to numeric result is nearly 7.23 mW
     According to the formula. calculate the test exclusion thresholds:
     [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·
     [√f(GHz)]
     General RF Exposure = (7.23 mW / 5 mm) x √2.402 GHz = 2.24                       (1)
     SAR requirement:
     S = 3.0                                                                          (2)
     (1) < (2)
     So the SAR report is not required.

     (*) Max. power refer to Report No.:SZEM190601558702



                                             - End of the Report -



Document Created: 2019-08-06 08:50:10
Document Modified: 2019-08-06 08:50:10

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