ZNK3085ETap It

RX Block Diagram Antenna Speaker

Letter of Agency "I, an officer of Fotorama (Hong Kong) Limited do hereby authorize Intertek Testing Services (Mr. Tim Lee / Herbert Wong / Kenneth Wong) to act on our behalf in front of the Federal Communications Commission with respect to all matters relating to certification of equipment under Part 15 and Part 18 of the FCC Rules until further notice." I further certify that no party (as defined in §1.2002(b) of CFR 47, 2004) to this application, including myself, is 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. Dated this 6 day May of 2022 By Signature Chan Kin Shu Printed Name QA & Engineering Manager Title

INTERTEK TESTING SERVICES FCC ID: ZNK3085E Equipment Photographs (External) INTERTEK TESTING SERVICES FCC ID: ZNK3085E Equipment Photographs (External)

B) Slave Unit 20mm 8.5mm

INTERTEK TESTING SERVICES FCC ID: ZNK3085E Equipment Photographs (Internal) INTERTEK TESTING SERVICES FCC ID: ZNK3085E Equipment Photographs (Internal) INTERTEK TESTING SERVICES FCC ID: ZNK3085E Equipment Photographs (Internal) INTERTEK TESTING SERVICES FCC ID: ZNK3085E Equipment Photographs (Internal) INTERTEK TESTING SERVICES FCC ID: ZNK3085E Equipment Photographs (Internal) INTERTEK TESTING SERVICES FCC ID: ZNK3085E Equipment Photographs (Internal)

Technical Description The Equipment Under Test (EUT), is a portable 2.4GHz Transceiver (Slave Unit) for a RC Toy. The sample supplied operated on 3 channels, normally at 2450 - 2470MHz. The channels are 2450MHz, 2460MHz and 2470MHz. The EUT is powered by 2 x 1.5V AA batteries. After switching on the EUT, which will be flashed light and generated sound effect. Antenna Type: Internal, Integral antenna Antenna Gain: 0dBi Nominal rated field strength is 86.3dBμV/m at 3m (Peak), 64.6dBμV/m at 3m (Average) Maximum allowed production tolerance: +/- 3dB The brief circuit description is listed as follows: 1. U2 acts as MCU 2. YZ acts as 16MHz Oscillator 3. C1, C2, L1 and C3 act as antenna matching circuit 4. LS acts as speaker

Analysis Report The Equipment Under Test (EUT), is a portable 2.4GHz Transceiver (Slave Unit) for a RC Toy. The sample supplied operated on 3 channels, normally at 2450 - 2470MHz. The channels are 2450MHz, 2460MHz and 2470MHz. The EUT is powered by 2 x 1.5V AA batteries. After switching on the EUT, which will be flashed light and generated sound effect. Antenna Type: Internal, Integral antenna Antenna Gain: 0dBi Nominal rated field strength is 86.3dBμV/m at 3m (Peak), 64.6dBμV/m at 3m (Average) Maximum allowed production tolerance: +/- 3dB According to the KDB 447498: Based on the maximum average field strength of production tolerance was 67.6dBμV/m at 3m in frequency 2.470GHz. Thus, it below calculated field strength according to minimum SAR exclusion threshold level as follows: The worst case of SAR Exclusion Threshold Level: = 3.0 * (min. test separation distance, mm) / sqrt(freq. in GHz) = 3.0 * 5 / sqrt (2.483.5) mW = 9.52 mW According to the KDB 412172 D01: EIRP = [(FS*D) ^2*1000 / 30] Calculated Field Strength for 9.52mW is 105dBuV/m @3m Since maximum average field strength plus production tolerance < = 105dBuV/m @3m and antenna gain is > = 0.0dBi, it is concluded that maximum Conducted Power and Field Strength are well below the SAR Exclusion threshold level, so the EUT is considered to comply with SAR requirement without testing.

Open : standard ver . Short : GB ver. SS12F44G7 8 OHM 1/4W 23MM

2/F., Garment Centre, 576 Castle Peak Road, Kowloon, Hong Kong SAR, China. Telephone: (852) 2173 8888 Facsimile: (852) 2785 5487 www.intertek.com Intertek’s standard Terms and Conditions can be obtained at our website http://www.intertek.com/terms/. The test report only allows to be revised within the retention period unless further standard or the requirement was noticed. This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to permit copying or distribution of this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification program. © 2017 Intertek Page 1 of 17 TEST REPORT Report No.: 22040464HKG-002R1 Fotorama (Hong Kong) Limited Application For Certification (Original Grant) FCC ID: ZNK3085E Transceiver This report supersedes previous report with report number 22040464HKG-002 dated May 16, 2022. Please refer TY-S22-0057 Letter issued on June 02, 2022 for amendment/ supersede notification. Prepared and Checked by: Approved by: Signed On File Wong Cheuk Ho, Herbert Lead Engineer Wong Kwok Yeung, Kenneth Assistant Supervisor Date: June 02, 2022 TEST REPORT Fotorama (Hong Kong) Limited Intertek Report No: 22040464HKG-002R1 Page 2 of 17 GENERAL INFORMATION Grantee: Fotorama (Hong Kong) Limited Grantee Address: Room 7, 10/F., Peninsula Centre, 67 Mody Road, Tsim Sha Tsui East, Hong Kong. Contact Person: Chan Kin Shu Tel: (852)3690 2890 Fax: (852)2434 9403 e-mail: N/A Manufacturer: Fotorama (Hong Kong) Limited Manufacturer Address: Room 7, 10/F., Peninsula Centre, 67 Mody Road, Tsim Sha Tsui East, Hong Kong. Brand Name: Tap It Model: 3085 Type of EUT: Transceiver Description of EUT: Tap It Serial Number: N/A FCC ID: ZNK3085E Date of Sample Submitted: April 11, 2022 Date of Test: April 11, 2022 to April 28, 2022 Report No.: 22040464HKG-002R1 Report Date: June 02, 2022 Environmental Conditions: Temperature: +10 to 40°C Humidity: 10 to 90% Conclusion: Test was conducted by client submitted sample. The submitted sample as received complied with the 47 CFR Part 15 Certification. AMENDMENT HISTORY Report No. Issued Date Content 22040464HKG-002 May 16, 2022 Original Report 22040464HKG-002R1 June 02, 2022 Revised the radiated emission to 937.678 MHz on Page 8 Revised the Judgment to 14.6 dB on Page 8 Revised the Operating Mode to Transmitting on Page 12 TEST REPORT Fotorama (Hong Kong) Limited Intertek Report No: 22040464HKG-002R1 Page 3 of 17 SUMMARY OF TEST RESULT Test Specification Reference Results Radiated Emission Radiated Emission on the Bandedge 15.249, 15.209 Pass Radiated Emission in Restricted Bands 15.205 Pass The equipment under test is found to be complying with the following standards: FCC Part 15, October 1, 2020 Edition Note: 1. The EUT uses a permanently attached antenna which, in accordance to section 15.203, is considered sufficient to comply with the pervisions of this section. 2. Pursuant to FCC part 15 Section 15.215(c), the 20 dB bandwidth of the emission was contained within the frequency band designated (mentioned as above) which the EUT operated. The effects, if any, from frequency sweeping, frequency hopping, other modulation techniques and frequency stability over excepted variations in temperature and supply voltage were considered. TEST REPORT Fotorama (Hong Kong) Limited Intertek Report No: 22040464HKG-002R1 Page 4 of 17 TABLE OF CONTENTS 1.0 GENERAL DESCRIPTION ................................................................................................ 5 1.1 Product Description ...................................................................................................5 1.2 Related Submittal(s) Grants.......................................................................................5 1.3 Test Methodology......................................................................................................5 1.4 Test Facility................................................................................................................5 2.0 SYSTEM TEST CONFIGURATION..................................................................................... 6 2.1 Justification................................................................................................................6 2.2 EUT Exercising Software.............................................................................................6 2.3 Special Accessories ....................................................................................................6 2.4 Measurement Uncertainty.........................................................................................6 2.5 Support Equipment List and Description....................................................................6 3.0 EMISSION RESULTS....................................................................................................... 7 3.1 Field Strength Calculation..........................................................................................7 3.2 Radiated Emission Configuration Photograph............................................................8 3.3 Radiated Emission Data .............................................................................................8 4.0 EQUIPMENT PHOTOGRAPHS ...................................................................................…

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INTERTEK TESTING SERVICES FCC ID: ZNK3085E Configuration Photographs Worst-Case Radiated Emissions (Front View) INTERTEK TESTING SERVICES FCC ID: ZNK3085E Configuration Photographs Worst-Case Radiated Emissions (Back View)