2ANEUCHE-630cheero pino

(Tra Company Ltd) Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2ANEUCHE-630 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Block Diagram, Schematics, Operational Description Block Diagram Schematics Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, ( Ryo Higashi) Rev 11/20/07

(Tra Company Ltd) Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2020/9/8 SUBJECT: FCC Application for FCC ID: 2ANEUCHE-630 To Whom It May Concern: We, the undersigned, hereby authorize Alan Mei at Shenzhen BCTC Testing Co., Ltd. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Alan Mei of Shenzhen BCTC Testing Co., Ltd. on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti- Drug Abuse Act. We, the applicant, are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Regards, ( Ryo Higashi)

External Photos

FCC ID: 2ANEUCHE-630

Internal Photos Antenna

RF EXPOSURE EVALUATION METHOD FCC ID: 2ANEUCHE-630 SAR Test Exclusion Thresholds for 100 MHz – 6 GHz and ≤ 50 mm Approximate SAR Test Exclusion Power Thresholds at Selected Frequencies and Test Separation Distances are illustrated in the following Table. 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)] · [√f(GHz)] ≤ 3.0 for 1-g SAR and ≤ 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 ≤ 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. BT-EDR Modulation Test Channel Output Power (dBm) Limit (dBm) GFSK Low 1.584 21 GFSK Middle 3.098 21 GFSK High 2.974 21 Pi/4 DQPSK Low -0.952 21 Pi/4 DQPSK Middle 0.594 21 Pi/4 DQPSK High 0.436 21 8DPSK Low -0.522 21 8DPSK Middle 1.025 21 8DPSK High 0.848 21 max possible output power (PK,conducted)：4±1dbm 3.78dBi logarithmic terms convert to numeric result is nearly 2.388 5dBm=3.16 mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=3. 16/5*√2.402 =0.98≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2441MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 3. 16/5*√2.441 =0.99≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=3. 16/5*√2.48=1. 00≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. BT-BLE Frequency Maximu m Conducted Output Power(PK) Conducted Output Power Limit (MHz) (dBm) dBm GFSK 2402 3.500 30 2440 4.864 30 2480 4.795 30 max possible output power (PK,conducted)：5±1dBm 3.78dBi logarithmic terms convert to numeric result is nearly 2.388 6dBm=3. 98 mW 2402MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=3.98/5*√2.402=1.23≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2440MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]= 3.98/5*√2.440 =1.24≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. 2480MHz [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance,mm)] · [√f(GHz)]=3.98/5*√2.480 =1. 25≤3.0 Threshold at which no SAR required is 10mw and ≤ 3.0 for 1-g SAR, Separation distance is 5mm. Conclusion: No SAR is required.

No.：BCTC/RF-EMC-00 5 Page: 1 of 69 Edition：A.2 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2010001484-1E Applicant: Tra Company Ltd Product Name: cheero pino Model/Type Ref.: CHE-630 Tested Date: Oct, 28, 2020 to Nov. 05, 2020 Issued Date: Nov. 05, 2020 Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 2 of 69 Edition：A.2 FCC ID:2ANEUCHE-630 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: cheero pino Trademark: Model/Type Ref.: CHE-630 Prepared For: Tra Company Ltd Address: 6-6 Kitahama-higashi, Chuo-ku, Osaka-shi Osaka, Japan 540-0031 Manufacturer: Shenzhen I-Link Technology CO., LTD Address: Unit B, 2nd Floor, Building 1, Xifa District C, Yintian Industrial Park, Xixiang Street, Baoan District, Shenzhen, China 518102 Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2F, East of B Building, Pengzhou Industrial, Fuyuan 1st Road, Qiaotou Community, Fuyong Street, Bao’an District, Shenzhen, China Sample Received Date: Oct, 28, 2020 Sample tested Date: Oct, 28, 2020 to Nov. 05, 2020 Issue Date: Nov. 05, 2020 Report No.: BCTC2010001484-1E Test Standards FCC Part15.247 ANSI C63.10-2013 Test Results PASS Remark: This is Bluetooth Classic radio test report. Tested by: Approved by: Willem Wang/Project Handler Zero Zhou/Reviewer Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 3 of 69 Edition：A.2 TABLE OF CONTENT Test Report Declaration Page 1. VERSION ............................................................. 5 2. TEST SUMMARY ...................................................... 6 3. MEASUREMENT UNCERTAINTY........................................ 7 4. PRODUCT INFORMATION AND TEST SETUP ............................ 8 4.1 Product Information ..................................................... 8 4.2 Test Setup Configuration ................................................ 8 4.3 Support Equipment ..................................................... 9 4.4 Channel List ........................................................... 9 4.5 Test Mode ............................................................ 10 4.6 table of parameters of text software setting ................................ 10 5. TEST FACILITY AND TEST INSTRUMENT USED ........................ 11 5.1 Test Facility ........................................................... 11 5.2 Test Instrument Used .................................................. 11 6. CONDUCTED EMISSIONS ............................................. 13 6.1 Block Diagram Of Test Setup ........................................... 13 6.2 Limit ................................................................. 13 6.3 Test procedure ........................................................ 13 6.4 EUT operating Conditions .............................................. 13 6.5 Test Result ........................................................... 14 7. RADIATED EMISSIONS ............................................... 16 7.1 Block Diagram Of Test Setup ........................................... 16 7.2 Limit ................................................................. 17 7.3 Test procedure ........................................................ 18 7.4 EUT operating Conditions .............................................. 19 7.5 Test Result ........................................................... 20 8. RADIATED BAND EMISSION MEASUREMENT AND RESTRICTED BANDS OF OPERATION .......................................................... 24 8.1 Block Diagram Of Test Setup ........................................... 24 8.2 Limit ................................................................. 24 8.3 Test procedure ........................................................ 25 8.4 EUT operating Conditions .............................................. 25 8.5 Test Result ........................................................... 26 9. CONDUCTED EMISSION .............................................. 27 9.1 Block Diagram Of Test Setup ........................................... 27 9.2 Limit ................................................................. 27 9.3 Test procedure ........................................................ 27 9.4 Test Result ........................................................... 28 10. 20 DB BANDWIDTH .................................................. 37 10.1 Block Diagram Of Test Setup .......................................... 37 10.2 Limit ................................................................ 37 10.3 Test procedure ....................................................... 37 10.4 Test Result .......................................................... 38 Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 4 of 69 Edition：A.2 11. MAXIMUM PEAK OUTPUT POWER .................................... 43 11.1 Block Diagram Of Test Setup .......................................... 43 11.2 Limit ................................................................ 43 11.3 Test procedure ....................................................... 43 11.4 Test Result .......................................................... 44 12. HOPPING CHANNEL SEPARATION .................................... 49 12.1 Block Diagram Of Test Setup .......................................... 49 12.2 Limit ................................................................ 49 12.3 Test procedure ....................................................... 49 12.4 Test Result .......................................................... 50 13. NUMBER OF HOPPING FREQUENCY .................................. 55 13.1 Block Diagram Of Test Setup .......................................... 55 13.2 Limit ...............................................................…

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Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 47 of 69 Edition：A.2 Pi/4 DQPSK High Channel 8DPSK Low Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 48 of 69 Edition：A.2 8DPSK Middle Channel 8DPSK High Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 49 of 69 Edition：A.2 12. HOPPING CHANNEL SEPARATION 12.1 Block Diagram Of Test Setup 12.2 Limit Frequency hopping systems shall have hopping channel carrier frequencies separated by a minimum of 25 kHz or the 20 dB bandwidth of the hopping channel, whichever is greater. Alternatively, frequency hopping systems operating in the 2400-2483.5 MHz band may have hopping channel carrier frequencies that are separated by 25 kHz or two-thirds of the 20 dB bandwidth of the hopping channel, whichever is greater, provided the systems operate with an output power no greater than 0.125W. 12.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 30kHz. VBW = 100kHz , Span = 2.0MHz. Sweep = auto; Detector Function = Peak. Trace = Max hold. 3. Allow the trace to stabilize. Use the marker-delta function to determine the separation between the peaks of the adjacent channels. The limit is specified in one of the subparagraphs of this Section Submit this plot. Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 50 of 69 Edition：A.2 12.4 Test Result Modulation Test Channel Separation (MHz) Limit(MHz) Result GFSK Low 0.996 0.605 PASS GFSK Middle 1.000 0.588 PASS GFSK High 1.004 0.585 PASS Pi/4 DQPSK Low 1.000 0.814 PASS Pi/4 DQPSK Middle 1.000 0.813 PASS Pi/4 DQPSK High 1.010 0.815 PASS 8DPSK Low 0.994 0.805 PASS 8DPSK Middle 1.008 0.807 PASS 8DPSK High 0.996 0.807 PASS Test plots GFSK Low Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 51 of 69 Edition：A.2 GFSK Middle Channel GFSK High Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 52 of 69 Edition：A.2 Pi/4 DQPSK Low Channel Pi/4 DQPSK Middle Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 53 of 69 Edition：A.2 Pi/4 DQPSK High Channel 8DPSK Low Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 54 of 69 Edition：A.2 8DPSK Middle Channel 8DPSK High Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 55 of 69 Edition：A.2 13. NUMBER OF HOPPING FREQUENCY 13.1 Block Diagram Of Test Setup 13.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. 13.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 100kHz. VBW = 300kHz. Sweep = auto; Detector Function = Peak. Trace = Max hold. 3. Allow the trace to stabilize. It may prove necessary to break the span up to sections. in order to clearly show all of the hopping frequencies. The limit is specified in one of the subparagraphs of this Section. 4. Set the spectrum analyzer: Start Frequency = 2.4GHz, Stop Frequency = 2.4835GHz. Sweep=auto; Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 56 of 69 Edition：A.2 13.4 Test Result Test Plots: 79 Channels in total GFSK Pi/4 DQPSK Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 57 of 69 Edition：A.2 8DPSK Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 58 of 69 Edition：A.2 14. DWELL TIME 14.1 Block Diagram Of Test Setup 14.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. Frequency hopping systems may avoid or suppress transmissions on a particular hopping frequency provided that a minimum of 15 channels are used. 14.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set spectrum analyzer span = 0. Centred on a hopping channel; 3. Set RBW = 1MHz and VBW = 3MHz.Sweep = as necessary to capture the entire dwell time per hopping channel. Set the EUT for DH5, DH3 and DH1 packet transmitting. 4. Use the marker-delta function to determine the dwell time. If this value varies with different modes of operation (e.g.. data rate. modulation format. etc.). repeat this test for each variation. The limit is specified in one of the subparagraphs of this Section. Submit this plot(s). Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 59 of 69 Edition：A.2 14.4 Test Result DH5 Packet permit maximum 1600 / 79 / 6 hops per second in each channel (5 time slots RX, 1 time slot TX). DH3 Packet permit maximum 1600 / 79 / 4 hops per second in each channel (3 time slots RX, 1 time slot TX). DH1 Packet permit maximum 1600 / 79 /2 hops per second in each channel (1 time slot RX, 1 time slot TX). So, the Dwell Time can be calculated as follows: DH5:1600/79/6*0.4*79*(MkrDelta)/1000 DH3:1600/79/4*0.4*79*(MkrDelta)/1000 DH1:1600/79/2*0.4*79*(MkrDelta)/1000 Remark: Mkr Delta is once pulse time. Modulation Channel Data Packet pulse time(ms) Dwell Time(s) Limits(s) GFSK Middle DH1 0.444 0.142 0.4 DH3 1.698 0.272 0.4 DH5 2.970 0.317 0.4 Pi/4DQPSK Middle 2DH1 0.441 0.141 0.4 2DH3 1.704 0.273 0.4 2DH5 2.970 0.317 0.4 8DPSK Middle 3DH1 0.444 0.142 0.4 3DH3 1.710 0.274 0.4 3DH5 2.970 0.317 0.4 Test Plots GFSK DH1 Middle Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 60 of 69 Edition：A.2 GFSK DH3 Middle Channel GFSK DH5 High Middle Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 61 of 69 Edition：A.2 Pi/4DQPSK DH1 Middle Channel Pi/4DQPSK DH3 Middle Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 62 of 69 Edition：A.2 Pi/4DQPSK DH5 Middle Channel 8DPSK DH1 Middle Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-00 5 Page: 63 of 69 Edition：A.2 8DPSK DH3 Middle Channel 8DPSK DH5 Middle Channel Report No.: BCTC2010001484-1E No.：BCTC/RF-EMC-0…

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Report No.: BCTC2010001484-2E No.：BCTC/RF-EMC-007 Page: 41 of 43 Edition：A.2 15. EUT TEST SETUP PHOTOGRAPHS Conducted emissions Radiated Measurement Photos Report No.: BCTC2010001484-2E No.：BCTC/RF-EMC-007 Page: 42 of 43 Edition：A.2