RF expo info

FCC ID: 2AFHW-VH20

RF Exposure Info

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FCCID_4376404

  FCC ID: 2AFHW-VH20




                             FCC 47 CFR MPE REPORT




                 INNOVATIVE TECHNOLOGY ELECTRONICS LLC

                                  Bluetooth Speaker Furniture

                                      Model Number: VH-35

                        Additional Model: VH-20, VH-25, VH-40,

                VH-20XXXX, VH-25XXXX, VH-35XXXX, VH-40XXXX

                 (Where X can be 0-9, A-Z or blank means color of unit)

                                     FCC ID: 2AFHW-VH20




Prepared for:     INNOVATIVE TECHNOLOGY ELECTRONICS LLC
                  1 CHANNEL DRIVE,PORT WASHINGTON,New York 11050,United States.


Prepared By:      EST Technology Co., Ltd.
                  Chilingxiang, Qishantou, Santun, Houjie, Dongguan, Guangdong, China
                                      Tel: 86-769-83081888-808




                      Report Number:          ESTE-R1904057
                      Date of Test:           Apr. 02~15, 2019
                      Date of Report:         Apr. 18, 2019




                    EST Technology Co. ,Ltd         Report No. ESTE-R1904057   Page 1 of 3


 FCC ID: 2AFHW-VH20


                      Maximum Permissible Exposure
1、Applicable Standard
     Systems operating under the provisions of this section shall be operated in a
manner that ensures that the public is not exposed to radio frequency energy level in
excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part
2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a
distance of 0.2m normally can be maintained between the user and the device.
(a)、Limits for Occupational / Controlled Exposure
 Frequency      Electric Field         Magnetic            Power                Averaging
Range (MHz)     Strength E)          Field Strength      Density (S)            Times︱E︱
                   (V/m)               (H) (A/m)         (mW/cm2)              2 , ︱H︱2 or
                                                                                S (minutes)
   0.3-3.0            614                  1.63             (100)*                  6
   3.0-30           1842/f                 4.89/f           (900/f)*                6
   30-300             61.4                 0.163              1.0                   6
  300-1500                                                   F/300                  6
1500-10000                                                      5                   6
(b)、Limits for General Population / Uncontrolled Exposure
 Frequency      Electric Field         Magnetic            Power                Averaging
Range (MHz)     Strength E)          Field Strength      Density (S)            Times︱E︱
                   (V/m)               (H) (A/m)         (mW/cm2)              2 , ︱H︱2 or
                                                                                S (minutes)
  0.3-1.34            614                  1.63             (100)*                 30
   1.34-30           824/f                 2.19/f           (180/f)*               30
   30-300             27.5                 0.073              0.2                  30
  300-1500                                                  F/1500                 30
1500-10000                                                    1.o                  30
Note: f=frequency in MHz; *Plane-wave equivalent power density
2、MPE Calculation Method
E (V/m) = (30*P*G) 0.5/d          Power Density: Pd (W/m2) = E2/377
E = Electric Field (V/m)
P = Peak RF output Power (W)
G = EUT Antenna numeric gain (numeric)
d = Separation distance between radiator and human body (m)
The formula can be changed to
Pd = (30*P*G) / (377*d2)
From the peak EUT RF output power, the minimum mobile separation distance,
d=0.2m, as well as the gain of the used antenna, the RF power density can be obtained

                 EST Technology Co. ,Ltd            Report No. ESTE-R1904057            Page 2 of 3


 FCC ID: 2AFHW-VH20


3、Conducted Power Result


                                                                         Target Antenna gain
         Frequency Peak output power Peak output power
 Mode                                                                    power
           (MHz)         (dBm)             (mW)                                 (dBi) (Linear)
                                                                        (dBm)
           2402                1.688                    1.475             1±1      0         1
 GFSK      2441                3.509                    2.243             3±1      0         1
           2480                4.152                    2.601             4±1      0         1
           2402               -0.330                    0.927             -1±1     0         1
8-DPSK     2441                1.691                    1.476             1±1      0         1
           2480                3.086                    2.035             3±1      0         1
           2402                4.440                    2.780             4±1      0         1
  BLE      2440                5.390                    3.459             5±1      0         1
           2480                5.750                    3.758             5±1      0         1


4、Calculated Result and Limit


                                            Antenna gain  Limited
                                                  Power       of
                            Target                Density Power
                                                                                        Test
         Mode               power                    (S)  Density
                                   (dBi) (Linear)                                      Result
                           (dBm)                   (mW       (S)
                                                   /cm2)    (mW
                                                           /cm2)
                                            2.4G Band
         GFSK                   5            0      1        0.00063         1     Compiles
        8-DPSK                  4            0      1        0.00050         1     Compiles
         BLE                    6            0      1        0.00079         1     Compiles




                  EST Technology Co. ,Ltd               Report No. ESTE-R1904057         Page 3 of 3



Document Created: 2019-07-19 10:10:17
Document Modified: 2019-07-19 10:10:17

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