XJ4KB6116SILICON BLUETOOTH KEYBOARD

CHIN FAI ELECTRONICS COMPANY Autlrority to Act as Aeent Date: ZQlOl0.12 Ameriean Telecommunication Certifi catian Eody, Inc. 6?31 Whittier Avenue Suite Cl l0 Mclean, VA 22101 To Whom It May Concern: $GS'C$TC Standards Technical Seruices Co.. Ltd. (SGS) Shenzhen Branch is authorized ro aet on aur behal{ until other'wise nctified, for applications to American Tetecommunicaficn Certifisation Body, Inc. {ATCB). lVe certifu that we are not subject to denial of federal brenefits, that ineludes FCC benefits, pursuant to sectisn 5301 qf the Anti-Drug Abuse Aet of 198S, 2l U.S"C. 862. Further, no F*rty, as defined in 4? CFR 1.2002 {b}, to the application is subject to denial of federal benefits, that ineludes FCC benefits. Thank you, Agency Agreement Expiration Date: 12 months . _ By: Title: On behalf of: Teleplrane: tiZanxians {Frint name} | - h,lust be signed by appliciult contact given for applicant orr the FCC site, or iry the althorizetl agent if arr appropria.te auttrorized agent lefter h.al been prcvi*let{. Lett*s should be plaeetl on *ppropriale leterhead. 't:;f' t-r-)- {:.1 4.f

Requct fqr loqfidentialitv Date: .,2010.10.12 Subject Confidentiality Request for FCC lD: XJ4KB6| 16 Pursuant to FCC 47 CRF 0.457(di and 0.459 and IC RSP-I00, Section 10, the applicant requesrs that a part of the subject FCC application be held confidential. Type of Confrdentinlity Requested fJshortTerm I Sho*Term I ShortTerm I ShortTerm f] Shorr Term fl Shortterm fiShortTerm n ShsrtTqqr flshortTerm fiJPermanent f] Pernranent+l ffi Permanent f] Permanent flPermaner* filPermanent f] Permanentt Exhibit Block Diagrams Extemal Phstos Irfernal Photos Operation DescriptionlTheory of Operation Parts List & Flacement/B0M Tune-Up Procedure Schematics Test Setup Photos User's Manual *Note: {Insert Explanation as Necessarv) CHlry FA! ELECTRONICS COMPANY has spent substantial effirrt in developing rhis product and it is one of the first of its kind in industry. Having the subject information easily available to "competition' would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardslrip. Permanent Ccnfiden tiality: The applicant reguests the e"thibits listed above as permanenfly confidential be permanently withheld from public revierv due io materials that contain trade secrets and proprietary infannation not customarily released to the public. Short-Term Conlidentiality ; The applicant requests the bxhibits selected above as shart term confidential be withheld from public view for a periodof {spcifvnumbercfdaysnottogxceed l80ir-daysfrumthedateoftheCrantofEqulpment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the pmduct to the public. Applicant is also aware that they are responsible to notifu ATCB in the event information the product or the produet is made available to the publie. ATCB will then release tlre Sincerely, blic disclosure pursuant tb FCC Public Notice DA 0+t?0j. fizalxrass (Print narne) ' - The asterisked items (+) require furtherjustification before permanent confidentiality will be allowed. These also currently require review by the FCC under their Permit-But-dsk policy before the grant is issued and can delay cornpletion af an application. Fudh€r j$stification should be added to the note above. One such example for a potted device wo$ld be: ,"The EUT is FULLY potted using a non-removable epoxy based material. Removal of potting rnaterial causes irreparable ^ darnage to internal circuitry. See photographs exhibits that outline the device befbre and after potting..' ] - elece refer to htto'.l4cb.cqn/pudlisd;# for complete details" ' - Must be signed by applicant coatact giv*n for applica*t on the FC,C site, or hy rtrrc authorizrxl agcirt if ari oppr(rpriarc authorized agcrrt letler has been provided. Leue$ slierld tt€ plaffd on appopriate lette*1'red. g.lb* fr@ ffg"

American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 February 20, 2011 TO: Federal Communications Commission RE: Supercede of test report This is to request audit placement for FCC ID: XJ4KB6116 for the purposes of test report supercede The applicant is requesting this action due to a revision of model name/number - it was incorrect in the original report and they wish to have it correct. Our reviewer has approved the new test report to ensure that the only changes was the model number/name. Regards, Marianne Bosley American TCB Inc. Direct 703-847-4700

CHIN FAI ELECTRONICS COMPANY Request for Supersedence TO: Federal Communication Commbsion Please kindly be notifled that we, cHtN FAt ELEcrRoNtcs coMpANy herein request to supersede the Fcc lD: xJ4KB6116 for the foltowing reason: Our client updated the model numbers, client wants to make sure the documents on FCC website are the same as what we provide to them. So we need to update the model numbers in the report. Please kindly permit the supersedence, Thank you. By: Title: On behalfof: Telephtrne: hxL uz^*/i*t/ (Signaturer) <j Li ZanxianE (Print name) y Nan*U-

1 Photographs - EUT Constructional Details(Test Item No.:KB-6116) SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 2 of 5 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 3 of 5 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 4 of 5 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 5 of 5 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.”

Size：25mm* 30mm

SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 2 of 6 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 3 of 6 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 4 of 6 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 5 of 6 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 6 of 6 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Compa…

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SGS-CSTC Standards Technical Services Co., Ltd. No. 1 Workshop, M-10, Middle Section, Science & Technology Park, District Shenzhen, China 518057 Telephone: +86 (0) 755 2601 2053 Fax: +86 (0) 755 2671 0594 Email: [email protected] Page: 1 of 1 FCC ID: XJ4KB6116 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” 1.1 RF Exposure Compliance Requirement 1.1.1 Standard requirement 15.247(b)(4) requirement: (4) The conducted output power limit specified in paragraph (b) of this section is based on the use of antennas with directional gains that do not exceed 6 dBi. Except as shown in paragraph (c) of this section. if transmitting antennas of directional gain greater than 6 dBi are used. the conducted output power from the intentional radiator shall be reduced below the stated values in paragraphs (b)(1). (b)(2). and (b)(3) of this section as appropriate. by the amount in dB that the directional gain of the antenna exceeds 6 dBi. 1.1.2 EUT RF Exposure The Max Conducted Peak Output Power is -3.82dBm (2.41mW) at the lowest channel; The best case gain of the antenna is 0dBi. 2dBi corresponds to linear antenna gain : 1. According to the formula, the calculation the EIRP test result: EIRP= P x G = 2.41mW x 1= 2.41mW ① SAR requirement: S= 60 / f(GHz) = 60/2.402 = 144.12mW ② ; ① < ②. So the SAR measurement is not required.

1234 A B C D 4321 D C B A Title NumberRevisionSize A4 Date:12-Oct-2010Sheet of File:E:\BT-KB6113.DDBDrawn By: Gnd 1 Gnd 2 P44 3 P43 4 P14 5 P12 6 P21 7 P20 8 P13 9 P41 10 P32 11 P33 12 3P0-1 13 P40 14 P34 15 P35 16 P17 17 GND 18 P16 19 P22 20 VBATT 21 P24 22 1P8V- 1 23 P31 24 P23 25 P15 26 3P0V 27 P00 28 P30 29 WP 30 P05 31 P04 32 P07 33 P06 34 UP-TX 35 UP-RX 36 P02 37 P25 38 RESET-IN 39 P03 40 P01 41 P27 42 P26 43 P42 44 P10 45 P11 46 P45 47 GND 48 U1 BCM2042 C1 0.1uF R4 5.1K ID SW-PB + EC2 22uF/6.3V R1 330 R3 10K R2 10K R5 10K 3P0V C2 10uF C4 10uF/6.3V C6 4.7uF/6.3V C5 10uF C7 0.1uF 3P0V 3P0V 1P8V-1 C4 C2 C9 C8 C3 C7 C6 C11 C10 C5 C12 C16 C17 R0 P4 3 R5 R4 R7 R6 UP TX UP RX R2 C13 C14 C15 C1 C0 R3 R1 BatteryMonitor 1 1 2 2 3 3 4 4 J2 B VBATT UP TX UP RX LED1 BlueLED + EC3 47UF C0 R2 KB-6116 Batter yMonitor C3 0.1uF LUY Ver1.0 KB-6116 P4 3 C25 C27 C26 C20 C11 C18 C21 C19 C13 C12 C14 C16 C29 C22 C17 C24 C28 C30 C15 C32 C36 C23 C33 C34 C35 C31 + EC1 100UF/6.3v C9 10uF C8 10uF VCC 1 D- 2 D+ 3 GND 4 AGND 5 USB CON2 CHRG 1 GND 2 BATT 3 VCC 4 PROG 5 U2EM4054 R7 0 R6 10K R8 470R C10 4.7uF LED2 RedLED VCC VCC A B B A Vin 1 GND 2 CE 3 NC 4 Vout 5 U3 8530 1 2 3 S1 SW-PB R9 10K CON1 R11 3P R12 3P R10 3P R14 3P R15 3P R17 3P R13 3P R16 3P R18 3P D1 2D D4 2D D3 2D D2 2D C4 C2 C9 C8 C3 C7 R5 R4 R7 R6 R2 C13 C14 C15 C1 C0 R3 R1 C11 C5 C16 C17 R0 C6 C10 C12 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 J1 PIN26 24.0MHZ

SGS-CSTC Standards Technical Services Ltd. No. 1 Workshop, M-10, Middle section, Science & Technology Park, Shenzhen, Guangdong, China 518057 Telephone: +86 (0) 755 2601 2053 Fax: +86 (0) 755 2671 0594 Email: [email protected] Report No.: SZEMO11010043101 Page : 1 of 50 Authorized Signature: Jack Zhang EMC Laboratory Manager The manufacturer should ensure that all products in series production are in conformity with the product sample detailed in this report. If the product in this report is used in any configuration other than that detailed in the report, the manufacturer must ensure the new system complies with all relevant standards. Any mention of SGS International Electrical Approvals or testing done by SGS International Electrical Approvals in connection with, distribution or use of the product described in this report must be approved by SGS International Electrical Approvals in writing. The report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the federal government. All test results in this report can be traceable to National or International Standards. “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm. Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” 1 Cover Page FCC REPORT Application No: SZEMO110100431RF Applicant: CHIN FAI ELECTRONICS COMPANY Manufacturer/Factory: CHIN FAI ELECTRONICS COMPANY Product Name: SILICON BLUETOOTH KEYBOARD Operation Frequency: 2402MHz to 2480MHz FCC ID: XJ4KB6116 Standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247: 2009 Date of Receipt: 2010-09-27 Date of Test: 2010-09-27 to 2010-11-11 Date of Issue: 2011-01-28 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. SGS-CSTC Standards Technical Services Ltd. Report No.: SZEMO10090617701 Page : 2 of 50 “This document is issued by the Company subject to its General Conditions of Service printed overleaf, available on request or accessible at www.sgs.com/terms_and_conditions.htm and, for electronic format documents, subject to Terms and Conditions for Electronic Documents at www.sgs.com/terms_e-document.htm . Attention is drawn to the limitation of liability, indemnification and jurisdiction issues defined therein. Any holder of this document is advised that information contained hereon reflects the Company’s findings at the time of its intervention only and within the limits of Client’s instructions, if any. The Company’s sole responsibility is to its Client and this document does not exonerate parties to a transaction from exercising all their rights and obligations under the transaction documents. This document cannot be reproduced except in full, without prior written approval of the Company. Any unauthorized alteration, forgery or falsification of the content or appearance of this document is unlawful and offenders may be prosecuted to the fullest extent of the law. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested and such sample(s) are retained for 90 days only.” 2 Contents Page 1 COVER PAGE.........................................................................................................................................................1 2 CONTENTS.............................................................................................................................................................. 2 3 TEST SUMMARY.................................................................................................................................................... 3 4 GENERAL INFORMATION................................................................................................................................... 4 4.1 CLIENT INFORMATION.......................................................................................................................................... 4 4.2 GENERAL DESCRIPTION OF E.U.T. ....................................................................................................................... 4 4.3 E.U.T OPERATION MODE...................................................................................................................................... 6 4.4 DESCRIPTION OF SUPPORT UNITS......................................................................................................................... 6 4.5 TEST FACILITY..................................................................................................................................................... 7 4.6 TEST LOCATION................................................................................................................................................... 7 4.7 OTHER INFORMATION REQUESTED BY THE CUSTOMER......................................................................…

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1 Photographs-test setup photo (Test Item No.:KB-6116) Conducted Emission Radiated Spurious Emission