2BCRX-KV032Keystone Hardware Wallet

Report No.: E202306264850-10 Page 1 of 12 APPENDIX B. PHOTOGRAPH OF THE EUT External Photos of EUT EUT-1 EUT-2 Report No.: E202306264850-10 Page 2 of 12 EUT-3 EUT-4 Report No.: E202306264850-10 Page 3 of 12 EUT-5 EUT-6

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Report No.: E202306264850-10 Page 4 of 12 Internal Photos of EUT EUT-1 EUT-2 Report No.: E202306264850-10 Page 5 of 12 EUT-3 EUT-4 Report No.: E202306264850-10 Page 6 of 12 EUT-5 EUT-6 Report No.: E202306264850-10 Page 7 of 12 EUT-7 EUT-8 Report No.: E202306264850-10 Page 8 of 12 EUT-9 EUT-10 BT Antenna Report No.: E202306264850-10 Page 9 of 12 EUT-11 EUT-12 ----------- End of Report ----------- RF IC

Page 1 of 53 Test Report Verified code: Report No.: E202306264850-6 Customer: Yanssie HK Limited Address: 19H MAXGRAND PLAZA NO.3 TAI,YAU STREET SAN PO KONG, KOWLOON, HONG KONG Sample Name: Keystone Hardware Wallet Sample Model: KV032 Receive Sample Date: Aug.18,2023 Test Date: Aug.20,2023 ~ Sep.18,2023 Reference Document: CFR 47, FCC Part 15 Subpart C RADIO FREQUENCY DEVICES: Subpart C—Intentional Radiators Test Result: Pass Prepared by: Reviewed by: Approved by: Lu Wei Jiang Tao Xiao Liang GRG METROLOGY & TEST GROUP CO., LTD. Issued Date: GRG METROLOGY & TEST GROUP CO., LTD. Address: No.163, Pingyun Road, West of Huangpu Avenue, Guangzhou, Guangdong, China Tel：（+86）400-602-0999 FAX：（+86）020-38698685 Web：http://www.grgtest.com 721114 2023-10-13 Report No.: E202306264850-6 Page 2 of 53 Statement 1. The report is invalid without "special seal for inspection and testing"; some copies are invalid; The report is invalid if it is altered or missing; The report is invalid without the signature of the person who prepared, reviewed and approved it. 2. The sample information is provided by the client and responsible for its authenticity; The content of the report is only valid for the samples sent this time. 3. When there are reports in both Chinese and English, the Chinese version will prevail when the language problems are inconsistent. 4. If there is any objection concerning the report, please inform us within 15 days from the date of receiving the report. 5. Without the agreement of the laboratory, the client is not authorized to use the test results for unapproved propaganda. ------------ The following blanks ------------ Report No.: E202306264850-6 Page 3 of 53 TABLE OF CONTENTS 1. TEST RESULT SUMMARY .......................................................................................................................... 6 2. GENERAL DESCRIPTION OF EUT............................................................................................................. 7 2.1 APPLICANT ................................................................................................................................... 7 2.2 MANUFACTURER ........................................................................................................................ 7 2.3 FACTORY ...................................................................................................................................... 7 2.4 BASIC DESCRIPTION OF EQUIPMENT UNDER TEST ........................................................... 7 2.5 MODEL DIFFERENT .................................................................................................................... 8 2.6 CHANNELLIST ............................................................................................................................. 8 2.7 TEST OPERATION MODE ........................................................................................................... 8 2.8 LOCAL SUPPORTIVE .................................................................................................................. 9 2.9 CONFIGURATION OF SYSTEM UNDER TEST ........................................................................ 9 2.10 DUTY CYCLE .............................................................................................................................. 10 3. LABORATORY AND ACCREDITATIONS .............................................................................................. 12 3.1 LABORATORY ............................................................................................................................ 12 3.2 MEASUREMENT UNCERTAINTY ........................................................................................... 13 4. LIST OF USED TEST EQUIPMENT AT GRGT ........................................................................................ 14 5. RADIATED SPURIOUS EMISSIONS ........................................................................................................ 15 5.1 LIMITS .......................................................................................................................................... 15 5.2 TEST PROCEDURES .................................................................................................................. 15 5.3 TEST SETUP ................................................................................................................................ 19 5.4 DATA SAMPLE ........................................................................................................................... 20 5.5 TEST RESULTS ........................................................................................................................... 21 6. 6dB BANDWIDTH ....................................................................................................................................... 30 6.1 LIMITS .......................................................................................................................................... 30 6.2 TEST PROCEDURES .................................................................................................................. 30 6.3 TEST SETUP ................................................................................................................................ 30 6.4 TEST RESULTS ........................................................................................................................... 31 7. MAXIMUM PEAK OUTPUT POWER ....................................................................................................... 33 7.1 LIMITS .......................................................................................................................................... 33 7.2 TEST PROCEDURES .................................................................................................................. 33 7.3 TEST SETUP ..........................................................................…

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1. Device Profile and Test Environment 2. Antenna Passive Test 3. Antenna BT Test 4. Assembly Drawing 东莞市一佳电子通讯有限公司 Tester : Tang Guohao Approval : Chen Guoqiang Date : 2023 / 06 / 30 东莞市一佳电子通讯科技有限公司 深圳研发中心 ADDR: 深圳市南山区科技园园西工业区25栋二段4楼 Tel:0755-26462487 Device 1. Device Profile and Test Environment 2. Antenna Passive Test Z Y X Y X Z Z Y X Y X Z Antenna BT 3. Antenna BT Test Agilent E5071B S Parameter Test // BT Antenna BT Antenna Matching Circuit Passive Test For BT Antenna Freq (MHz) Effi (%) Effi (dB) Gain (dBi) 2400 19.0 -7.2 1.5 2410 19.2 -7.2 1.5 2420 19.0 -7.2 1.4 2430 18.0 -7.5 1.2 2440 16.7 -7.8 0.8 2450 16.7 -7.8 0.7 2460 15.5 -8.1 0.2 2470 14.9 -8.3 -0.2 2480 13.4 -8.7 -0.7 2490 12.5 -9.0 -1 2500 12.2 -9.2 -1.2 LTE div Antenna 4. Assembly Picture BT Antenna

Report No.: E202306264850-9-2 Page 1 of 2 PPENDIX A. PHOTOGRAPH OF THE TEST CONNECTION DIAGRAM Radiated Spurious Emission: 30MHz-1GHz Radiated Spurious Emission: 1GHz-18GHz Report No.: E202306264850-9-2 Page 2 of 2 Radiated Spurious Emission: 18GHz-26.5GHz ----------- End of Report -----------