X4TSY666RM611XWIRELESS MOUSE

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. NOTE: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help.

Diagram 1. Host side USB DATA MCU 2271 3V3 RF A7105 16MHz Crystal PCB embedded antenna 2. Controller side MCU SN8P2613X LED KEY coder RFIC A7105 16MHz Crystal DATA PCB embedded antenna 2V7 DC/DC SENS

SUNYOUNG ELECTRONIC (SHENZHEN) CO., LTD FCC ID: X4TSY666RM611X POWER OF ATTORNEY January 27, 2010 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, SUNYOUNG ELECTRONIC (SHENZHEN) CO., LTD, hereby authorize Most Technology Service Co., Ltd. (Terry YANG/ Manager) on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Most Technology Service Co., Ltd. (Terry YANG/ Manager)on our behalf shall have the same effect as acts of our own. This authorization expires on February 28,2010. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, SUNYOUNG ELECTRONIC (SHENZHEN) CO., LTD. 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. Name: Chris Cheng Title: R&D Div.Manager Date: January 27, 2010

FCC ID: X4TSY666RM611X Report No.: MOST/STS100103F1 FRONT VIEW OF SAMPLE BACK VIEW OF SAMPLE FCC ID: X4TSY666RM611X Report No.: MOST/STS100103F1 LEFT VIEW OF SAMPLE RIGHT VIEW OF SAMPLE FCC ID: X4TSY666RM611X Report No.: MOST/STS100103F1 TOP VIEW OF SAMPLE BOTTOM VIEW OF SAMPLE

FCC ID: X4TSY666RM611X Report No.: MOST/STS100103F1 INTERNAL PHOTO OF SAMPLE – 1 INTERNAL PHOTO OF SAMPLE - 2

Wireless Mouse Operation Principle 1. Mouse Side Radio The Mouse side radio system is mainly composed of two parts: radio modem and baseband microprocessor. The microcontroller scans keystrokes, wheel and sensor , then packs the data by adding preambles, frame information, and error checking bytes.The radio system uses one of 16 channels (the frequency range is 2.404-2.477GHz) to send signal in random, when the data validation error change frequency . The Mouse side radio system is powered by double 1.5V AAA batteries and regulated to 1.8V. The power consumption of RF module is about 2.7mA, the total power consumption about 9.5mA in normal working mode. It will enter sleep mode if no key be pressed or no motion after 30 second, in this mode the total power consumption only about 100-200uA. The Mouse side radio system will send sync packets after being powered on, and then search Dongle's responses. This is search mode. If any responses-packets be received, the Mouse side radio system will enter normal working mode. Then , if Mouse side radio system loses synchronization, it will enter sleep mode. 2. Dongle Side Radio Dongle side radio will always receives RF signal and checksum data at intervals , if data is OK send data by USB to computer, then send ACK data to Mouse Side Radio. Dongle side radio system is powered by USB(5V).

Tune-up Procedure Item Description Specification 1 Frequency Band TX : 2404 - 2477Mhz 2 Modulation Type FSK(GFSK) 3 Channel Number 16 4 Channel Frequency 2404MHz, 2407MHz, 2414MH, 2417MH, 2424MH, 2427MH, 2434MH , 2437MH, 2444MH, 2447MH, 2454MH, 2457MH, 2464 MH, 2464 MH, 2474 MH,2477 MH 5 Maximum Power 0 dBm

FCC 47 CFR PART 15 SUBPART C TEST REPORT For Applicant : SUNYOUNG ELECTRONIC (SHENZHEN) CO., LTD Address : Room 2811, United Plaza A, No.5022, Binhe Road, Futian District , Shenzhen, China Product Name: Wireless Mouse Model Name : RM611A, RM611X(X:B-Z), RM61, M371-X(X:A-Z) Brand Name : N/A FCC ID : X4TSY666RM611X Report No. : MOST/STS100103F1 Date of Issue : January 20, 2010 Issued by :Most Technology Service Co., Ltd. Address : No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China Tel : 86-755-8617 0306 Fax : 86-755-8617 0310 The report consists 23 pages in total. It may be duplicated completely for legal use with the approval of the applicant. It should not be reproduced except in full, without the written approval of our laboratory. The client should not use it to claim product endorsement by MOST. The test results in the report only apply to the tested sample. The test report shall be invalid without all the signatures of testing engineers, reviewer and approver. FCC ID: X4TSY666RM611X Report No.: MOST/STS100103F1 Page 2 of 23 TABLE OF CONTENTS 1．VERIFICATION OF CONFORMITY .............................................................................................................. 3 2. GENERAL INFORMATION ............................................................................................................................ 4 2.1 Product Information ...................................................................................................................................... 4 2.2 Objective ...................................................................................................................................................... 5 2.3 Test Standards and Results .......................................................................................................................... 5 2.4 Environmental Conditions............................................................................................................................. 5 3. TEST FACILITY.............................................................................................................................................. 6 3.1TEST FACILITY............................................................................................................................................. 6 3.2 GENERAL TEST PROCEDURES ................................................................................................................ 6 3.3 FCC PART 15.205 RESTRICTED BANDS OF OPERATIONS..................................................................... 7 4. SETUP OF EQUIPMENT UNDER TEST ....................................................................................................... 8 4.1 SUPPORT EQUIPMENT.............................................................................................................................. 8 4.2 TEST EQUIPMENT LIST ............................................................................................................................. 9 5. 47 CFR Part 15C 15.249 Requirements....................................................................................................... 10 5.1 Spurious Emission Test .............................................................................................................................. 10 5.1.1 Requirement............................................................................................................................................ 10 5.1.2 Test Description ........................................................................................................................................11 5.1.3 Test Description ....................................................................................................................................... 12 5.1.4 Test Result............................................................................................................................................... 13 5.2 Band Edge ................................................................................................................................................. 19 5.2.1 Requirement............................................................................................................................................ 19 5.2.2 Test Description ....................................................................................................................................... 19 5.2.3Test Result................................................................................................................................................ 19 5.3 Power Line Conducted Emission Test (Not Applicable) .............................................................................. 21 5.3.1 Limits of Line Conducted Emission Test .................................................................................................. 21 5.3.2 BLOCK DIAGRAM OF TEST SETUP...................................................................................................... 21 5.3.3 PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST ............................................. 22 5.3.4 FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST ........................................................... 22 5.3.5 TEST RESULT OF LINE CONDUCTED EMISSION TEST ..................................................................... 23 FCC ID: X4TSY666RM611X Report No.: MOST/STS100103F1 Page 3 of 23 1．VERIFICATION OF CONFORMITY Equipment Under Test: Wireless Mouse Brand Name: N/A Model Number: RM611A, RM611X(X:B-Z), RM61, M371-X(X:A-Z) FCC ID： X4TSY666RM611X SUNYOUNG ELECTRONIC (SHENZHEN) CO., LTD Applicant: Room 2811, United Plaza A, No.5022, Binhe Road, Futian District , Shenzhen, China SUNYOUNG ELECTRONIC (SHENZHEN) CO., LTD Manufacturer: Room 2811, United Plaza A, No.5022, Binhe Road, Futian District , Shenzhen, China Technical Standards: 47 CFR Part 15 Subpart C File Number:…

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FCC ID: X4TSY666RM611X Report No.: MOST/STS100103F1 Radiated Emission Test Setup