WF5LKP12BMobile Printer

FCC Confidentiality Request Number: CF303 Version: V05 Date: 21-05-2012 (Permanent or also called long term confidentiality is the normal method to keep certain docuements confidential, and may apply to schematics, block diagrams, operational description and bill of materials.) To: Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Pursuant to 47 CFR Section 0.459(a) & (b), we, (the applicant / grantee) Company nameSEWOO TECH CO., LTD. Address28-6, Gajangsaneopdong-ro CityOsan-si, Gyeongi-do Country447-210, Korea request for this certification filing under: Grantee CodeProduct Number FCC ID:WF5LKP12B to maintain permanent confidentiality for the following documents submitted within this application: (please cross what is applicable, or add other documents, provide the file name and description) ExhibitFile NameDescription XOperational Descriptionexplaining the functioning of the block diagram XBlock Diagramsshowing the systematic building blocks of the EUT XSchematics Diagramsshowing components, their values and interconnection XBill of MaterialsList of components used on the PCB’s of the EUT Above materials crossed contain secrets, proprietary and technical information, which would customarily be guarded from competitors under 47 CFR, section 0.457(d)(2). Disclosure or publication or any portion of this company confidential material to other parties could cause substantial competitive harm and provide unjustified benefits for competitors. We understand that pursuant to 47 CFR section 0.457(d)(1)(ii) disclosure of the applicant and all accompanying documentation will not be made before the date of the grant. The documents indicated as confidential above, are not publicly available elsewhere. Attestation: City and Country:Date:Name: (this must be a person) Function:Signature: (or official company stamp) Osan-si, Gyeongi-do Korea 2012-07-06Hyung Hee HanSenior Engeneer

CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com EUT External Photographs CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Charger 1 CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Charger 2 CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Battery

CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com EUT Internal Photographs CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Main Board CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com BT Board BT Antenna CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Sub Board

386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Report No.: CTK-2012-00663 Date: July 6, 2012 Page 1 of 38 This Report shall not be reproduced except in full without the written approval of CTK Form No.: CTK-RF-EF-Part15(Rev.5.7) EMC TEST REPORT For FCC Test Report No. : CTK-2012-00663 Date of Issue : July 6, 2012 Model/Type No. : LK-P12B and LK-P12AB Kind of Product : Mobile Printer Applicant : SEWOO TECH CO., LTD. Applicant Address : 28-6, Gajangsaneopdong-ro, Osan-si, Gyeongi-do, 447-210, Korea Manufacturer : SEWOO TECH CO., LTD. Manufacturer Address : 28-6, Gajangsaneopdong-ro, Osan-si, Gyeongi-do, 447-210, Korea Contact Person : Min-Seok Song / Senior Engineer Telephone : +81-70-4035-3372 Received Date : April 10, 2012 Test period : Start : April 23, 2012 End : April 24, 2012 Test Results : In Compliance Not in Compliance The test results presented in this report relate only to the object tested. Tested by Reviewed by Bong-jun, Jang EMC Test Engineer James Hong EMC Technical Manager Date: July 6, 2012 Date: July 6, 2012 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Report No.: CTK-2012-00663 Date: July 6, 2012 Page 2 of 38 This Report shall not be reproduced except in full without the written approval of CTK Form No.: CTK-RF-EF-Part15(Rev.5.7) REPORT REVISION HISTORY Date Revision Page No July 6, 2012 Issued (CTK-2012-00663) All This report shall not be reproduced except in full, without the written approval of CTK Co., Ltd. This document may be altered or revised by CTK Co., Ltd. personnel only, and shall be noted in the revision section of the document. Any alteration of this document not carried out by CTK Co., Ltd. will constitute fraud and shall nullify the document. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Report No.: CTK-2012-00663 Date: July 6, 2012 Page 3 of 38 This Report shall not be reproduced except in full without the written approval of CTK Form No.: CTK-RF-EF-Part15(Rev.5.7) TABLE OF CONTENTS REPORT REVISION HISTORY .......................................................................................... 2 1.0General Product Description ............................................................................... 4 1.1Model Differences ............................................................................................. 4 1.2Device Modifications ......................................................................................... 4 1.3EUT Configuration(s)......................................................................................... 5 1.4Test Software................................................................................................... 6 1.5EUT Operating Mode(s) ..................................................................................... 6 1.6Configuration ................................................................................................... 7 1.7Calibration Details of Equipment Used for Measurement ......................................... 9 1.8Test Facility...................................................................................................... 9 1.9Measurement Procedure .................................................................................... 9 1.10Laboratory Accreditations and Listings ............................................................... 10 1.11 Measurement Uncertainty .................................................................................... 10 2.0Emissions Test Regulations............................................................................... 11 2.1Conducted Voltage Emissions ........................................................................... 12 2.2Radiated Electric Field Emissions....................................................................... 13 APPENDIX A – TEST DATA ........................................................................................... 14 Conducted Voltage Emissions ................................................................................. 14 Radiated Electric Field Emissions ............................................................................. 22 APPENDIX B - Test Setup Photos and Configuration ......................................................... 26 Conducted Voltage Emissions ................................................................................. 26 Radiated Electric Field Emissions ............................................................................. 27 APPENDIX C – EUT Photographs ................................................................................... 28 EUT Internal Photographs ...................................................................................... 31 PCB .................................................................................................................... 32 Battery Charger 1&2 ............................................................................................. 35 Battery............................................................................................................... 37 Label and Location ................................................................................................ 38 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Report No.: CTK-2012-00663 Date: July 6, 2012 Page 4 of 38 This Report shall not be reproduced except in full without the written approval of CTK Form No.: CTK-RF-EF-Part15(Rev.5.7) 1.0General Product Description 1.0.1 Tested Equipment Unless otherwise indicated, all tests were conducted on Model LK-P12B. Tests performed on Model LK-P12B were considered to be representative of Model LK-P12AB. 1.0.2 Equipment Size, Mobility and Identification Dimensions: 104…

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CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Test Setup Photographs and Configuration Conducted Voltage Emissions CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com Radiated Electric Field Emissions CTK Co., Ltd. 386-1, Ho-dong, Cheoin-gu, Yongin-si, Gyeonggi-do, 449-100, Korea Tel: +82-31-339-9970 Fax: +82-31-339-9855 www.e-ctk.com