VFRHMXGTR01Wireless Guitar Controller for XBox360

January 8, 2008 Elliott TCB Gentlemen: The enclosed documents constitute a formal submittal and application for an FCC Grant of Equipment Authorization and Industry Canada single-product certification for a 2.4 GHz frequency hopping spread spectrum transmitter pursuant to the following rules : Subpart C of Part 15 of FCC Rules (CFR 47) RSS-Gen Issue 2, June 2007, “General Requirements and Information for the Certification of Radiocommunication Equipment” RSS-210, Issue 7, June 2007, “Low-power Licence-exempt Radiocommunication Devices (All Frequency Bands): Category I Equipment” Data within this application demonstrates that the equipment tested complies with the relevant requirements for unlicensed wireless devices. Elliott Laboratories, as duly authorized agent prepared this submittal. A copy of the letter of our appointment as agent is enclosed. If there are any questions or if further information is needed, please contact Elliott Laboratories for assistance. Sincerely, Mark Briggs Principal Engineer MB/dmg Enclosures: Agent Authorization Letter Emissions Test Report with Exhibits

Elliot TCB 684 West Maude Avenue Sunnyvale, CA.94085 January 24,2008 Gentlemen: This is your letter of authorization to accept our appointment of Elliot Laboratories, Inc. as our Agent for Harmonix Music Systems, [nc., to sign applications before Elliott TCB and to make representations to you on our behalf. Elliott Laboratories, Inc. is to receive and exchange data between our company and Elliott TCB. Sincerely, Mike Dornbrook VP Operations Hdrmonl>< M|Jslc SUSfems, Inc. . be5 MdssdcJ-lrJsetts A\/e. . Cdmbrlctqe, MA \ /\ /\ /.1'ldrrnontxmustc.com . Phone 617.1-.l9l.6lt-lq . Fdx 617.1191.74n oetJ9

Elliott TCB 684 W. Maude Ave Sunnyvale, CA 94045 Gentlemen: This is your letter of authorization to accept our appointment of Mike Dornbrook of Harmonix Music Systems to make representations with respect to product certifications for FCC approval, either directly to the FCC or through the use of a TCB, on our behalf. Sincerg|y, iel Sussman Director of Hardware Development V lz7o6 Hdrmonlx Muslc Sgstem5, lnc. . ba5 MdssdEhuseffs A\/e. . Edmbrtdge, MA oel39 w\N\ /.fidrmontxmustc.com . Phone 6l7.q9l.blt{t-J . Fax bl7.4ql-7411

Elliott TCB 684 West Maude Ave. Sunnyvale, CA.94085 February 15,2008 Dear Examiner: I am writing to avoid the possibility of an inadvertent disclosure of proprietary information. The accompanying Form 731 is being filed with the commission on our behalf by Elliott Laboratories, Inc., a consulting and testing laboratory. Included as exhibits with the enclosed application are block diagrams, schematics, and a detailed description of the theory of operation of the device. It is our intention to provide the commission with a full disclosure of our product so that its merits can be evaluated. Indeed, we are pleased to provide any further information that the commission might wish to see. It is not our intention, however, to make our proprietary process amatter of public record. In view of the factthat the block diagrams, schematics, and associated theory of operation disclose the mechanism of our process, we ask that these portions (block diagrams, schematics, and theory of operation) of our application be withheld from public inspection as provided under FCC section 0.459. These documents contain details of the proprietary operation of product. These details are not readily discernible - even to technically sophisticated individuals - from our hardware and constitute trade secrets. We request therefore that these documents and this letter be segregated from the body of our evaluation report and withheld from public inspection. Thank you for your attention. Please let the undersigned know if the Commission disagrees with our position or requires further justification. Sincerely, w,or4 Mike Dornbrook VP Operations Hdrmonlx ML,slc SUStems, lnc. . beS M€ssdchusetts A\/e. . Cdmbrlctee, MA www.lr€rmonlxmL,slc.com . Phone 6l7.q9l.6ll-lq . Fdx 617.q9l.74ll oetJ9

1.875 FCC ID Label and Location Drawing Xbox 360 Wireless Guitar Controller Harmonix Music Systems 625 Massachusetts Avenue, 2 nd Floor Cambridge, MA 02139 2.75 Units: Inches Note: Label will be permanently affixed.

Main Board (bottom) Keypad/Button Matrix (top) Guide Button/Leds (top)

RF Exposure Calculations The device is a portable device (i.e. intended to be worn on the body or be hand-held). The out put power (peak) is 4.7dBm (2.9mW) and the antenna gain is nominally –0.8dBi, which gives an effective isotropic radiated power of 2.4mW. Without taking into account the protocol limited duty cycle 1 of 12.15%, the eirp is well below the low threshold of 60/f(GHz), or 25mW, above which SAR evaluation would be required for a portable device. Frequency MPE Limit (mW/cm 2 ) Output Power (mW) Max. Antenna Gain (dBi) EIRP (mW) Pd at 20cm (mW/cm 2 ) Distance where Pd = limit (cm) 2402 to 2482 MHz 1.00 2.9 -0.8 2.4 0.0005 0.4 As the output power and eirp are both below the low threshold no SAR evaluation is required and the device may be used in portable applications without further rf exposure assessment. 1 The system in which this device is used allows the device a maximum transmit time of 972us in any 8ms period for the controller. The average output power, using a 10log(duty cycle) correction to the peak output power, would have an eirp of approximately 0.3mW.

File: R70382 Rev 2 Page 1 of 20 Electromagnetic Emissions Test Report and Application for Grant of Equipment Authorization pursuant to Industry Canada RSS-Gen Issue 2 / RSS 210 Issue 7 FCC Part 15 Subpart C on the Harmonix Music Systems Inc. Transmitter Model: XBOX 360 Rock Band Wireless Guitar Controller UPN: 7543A-HMXGTR01 FCC ID: VFRHMXGTR01 GRANTEE: Harmonix Music Systems Inc. 625 Massachusetts Ave., 2nd Floor Cambridge, MA 02139 TEST SITE: Elliott Laboratories, Inc. 684 W. Maude Ave Sunnyvale, CA 94086 REPORT DATE: January 8, 2008 REVISED: April 10, 2008 FINAL TEST DATE: April 3, 2008 AUTHORIZED SIGNATORY: ______________________________ Mark Briggs Principal Engineer Elliott Laboratories, Inc. is accredited by the A2LA, certificate number 2016-01, to perform the test(s) listed in this report. This report shall not be reproduced, except in its entirety, without the written approval of Elliott Laboratories, Inc. Testing Cert #2016-01 Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: January 8, 2008 File: R70382 Rev 2 Page 2 of 20 REVISION HISTORY Rev # Date Comments Modified By 1 3/26/08 Initial Release DMG 2 4/10/2008 Revised 99% bandwidth data in Exhibit 2 and summary table. Included data for radiated emissions with the headphone port connected. Corrected FCC ID on title page. Added 4/3/2008 test data to list of dates, corrected last test date on cover page. M. Briggs Elliott Laboratories, Inc. -- EMC Department Test Report Report Date: January 8, 2008 File: R70382 Rev 2 Page 3 of 20 TABLE OF CONTENTS COVER PAGE............................................................................................................................................................. 1 REVISION HISTORY ................................................................................................................................................ 2 TABLE OF CONTENTS ............................................................................................................................................ 3 SCOPE .......................................................................................................................................................................... 4 OBJECTIVE ................................................................................................................................................................ 5 STATEMENT OF COMPLIANCE ........................................................................................................................... 5 TEST RESULTS SUMMARY ................................................................................................................................... 6 FREQUENCY HOPPING SPREAD SPECTRUM (2400 – 2483.5 MHZ, LESS THAN 75 CHANNELS) ................ 6 GENERAL REQUIREMENTS APPLICABLE TO ALL BANDS .......................................................................... 7 MEASUREMENT UNCERTAINTIES ..................................................................................................................... 7 EQUIPMENT UNDER TEST (EUT) DETAILS ...................................................................................................... 8 GENERAL ................................................................................................................................................................ 8 ENCLOSURE ........................................................................................................................................................... 8 MODIFICATIONS ................................................................................................................................................... 8 SUPPORT EQUIPMENT ......................................................................................................................................... 8 EUT OPERATION ................................................................................................................................................... 8 TEST SITE ................................................................................................................................................................... 9 GENERAL INFORMATION ................................................................................................................................... 9 RADIATED EMISSIONS CONSIDERATIONS .................................................................................................... 9 MEASUREMENT INSTRUMENTATION ............................................................................................................ 10 RECEIVER SYSTEM ............................................................................................................................................ 10 INSTRUMENT CONTROL COMPUTER ............................................................................................................ 10 LINE IMPEDANCE STABILIZATION NETWORK (LISN) ............................................................................... 10 FILTERS/ATTENUATORS .................................................................................................................................. 11 ANTENNAS ........................................................................................................................................................... 11 ANTENNA MAST AND EQUIPMENT TURNTABLE ....................................................................................... 11 INSTRUMENT CALIBRATION ........................................................................................................................... 11 TEST PROCEDURES .............................................................................................................................................. 12 EUT AND CABLE PLACEMENT ........................................................................................................................ 12 RADIATED EMISSIONS ....…

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