QDVWM-21Wireless Microphone

(Pictures for reference only) 1.1. Receiver Module (1) Antenna (2) CH1 / CH2 RF LED Indicator (3) CH1 / CH2 Volume Control UHF / VHF (1)(2)(3) PARTS DESCRIPTION AND OPERATION GUIDE 1.2. Handheld Microphone Transmitter UHF / VHF (1) Mesh & Capsule (2) Power LED Indicator (3) Low Battery LED Indicator (4) Power Switch (5) Body (6) Battery Compartment / Cover (7) Frequency Recognition Cap (6) (7) (3) (1) (2) (4) (5) 1. To connect the receiver module with DC power (8V),audio will come out from amplifier. 2. Open battery cover (6) on handheld microphone, then insert 1.5V AA 2 battery ( Pay attention to the positive and negative pole).Close battery cover. 3. Turn on microphone power switch (4), power LED indicator (2) will light up, low battery indicator (3) will flash once then off. When low battery indicator (3) lights up red, it indicates battery power is low. Change battery for continuously use. To use microphone, the sound will come out. 4. Remove the battery from microphone while idling the unit. 2. Operation Guide

1 2 3 4 56 ABCD 6 5 4 3 2 1 D CBA Title Number Revision Size B Date: 15-Feb-2011 Sheet of File: D:\lcm\WM-VU21T.ddb Drawn By: 25.595833MHz 3V Y1 DC-DC S1 VD1 3*F AMP Q4 2*F AMP VOLTAGE TEST Q7 3*F AMP Q8 2*F AMP Q9 AF AMP 5V TONE 32.768KHZ Q8 LO LED Q1 Q2LD1 LD2 U1 R11 C18 U2 S1 U3 Q5 Q6 Y2 DALAY SWITCH FM MODULATION ON/OFF MUTE COMPRESSION PRE-EMPHASIS MIC 9V 5V

SCS-F18: Project and Product Certification Representative Authorization Letter Page 1 of 2 Rev 2.0 2206 Ringwood Avenue San Jose, CA 95131 Tel: 408-526-1188 Fax: 408-526-1088 Email: [email protected] Project and Product Certification Representative Authorization Letter Revision History Reason for Amendment (current / obsolete) From To Approved Date Initial Release (current) 1.0 1.0 Nov-14-2006 Revised wording (current) 1.0 2.0 Sept–25-2007 SCS-F18: Project and Product Certification Representative Authorization Letter Page 2 of 2 Rev 2.0 NINGBO PROMIC TECHNOLOGY CO., LTD. Date:2011-02-11 To: SIEMIC, INC. 2206 Ringwood Avenue, San Jose, CA 95131 USA Dear Sir/Madam, Re: Project and Product Certification Representative Authorization Letter We, NINGBO PROMIC TECHNOLOGY CO., LTD. hereby authorize SIEMIC, INC. to act as a Certification Body for certifying for the following project(s): Product: Wireless Microphone (M/N: PU-611, WM-U21, UR-611, UR-1016, PV- 611, UR-16M, Venu 100, VenuHHM100 ) We affirm that between SIEMIC and NINGBO PROMIC TECHNOLOGY CO., LTD., any difference in understanding, including test plan, measurement methods, applicable standards and relevant procedures and processes have been resolved prior to commencement of testing activities. NINGBO PROMIC TECHNOLOGY CO., LTD. No.5, Ningbo Free Trade Zone, West Area, Ningbo, Zhejiang, China.

General Appearance of the EUT

FCC ID: QDVWM-21 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.

FCC ID Lable Location On EUT

Antenna Antenna

Operation Description First 、 the wireless receiver works : the antenna to the radio signals induced by a specific dielectric filter to filter out unwanted frequencies RF amplifier, and then with the local oscillator for down-beat frequency and then the second differential LO 110MHZ Frequent 10.7MHZ IF, and then amplified by the IF filter and then demodulated by the LA1140 for audio processing by the de-emphasis circuit, then amplified by the last stage into the amplifier. TWO, the transmitter works: a tiny microphone sensitive to electrical signal by the amplifier and then processed by the pre-emphasis circuit is a signal added to varactor diode VD1 negative side, with the size of signal level changes , VD1 capacity also changed, thus changing the rate of the vibration level to achieve the purpose of FM, and then by the frequency processing circuit and power amplifier, post-class power amplifier and matching network to launch out of the way of electromagnetic waves.

1 2 3 4 5 6 78 ABCD 8 7 6 5 4 3 2 1 D CBA Title Number Revision Size A3 Date: 18-Jan-2011 Sheet of File: D:\lcm\WM-VU21T.ddb Drawn By: V13V VC1 10PF L6 6.8N C672P VC110PF L5 6.8N Q9 2SC3356R L4 1.5T R50101R C59 221P L31uH C64 103P R5115K R49 1K C57 8P C54 10P Q8 2SC2735J T6FLB-964 C67 102P R43151R L21uH C50 103P R4610KR441.5k C46 68P C47 0.5P T4 FLB-962 Q7 2SC2735J C68102P R44221R C14 103P R3810KR413.3K C39 33P C38 33P T3 FLB-962 C35 0.5P C29 10P Q4 2SC2735J T2 FLB-964 C30 103P R291K C2633PC2833P R18220K Y1 25.595833MHZ T1 FLB-963 L81uH R2333K R2847KR2715K R265K C26 2.2uF50V 5 6 7 8 S1B ESSLWM-900A 1 2 3 4 S1A ESSLWM-900A C34 103P R3222K R393.3K Q5 2SC2712 R35 330R R37 220K R365.6K R42 220K Q6 2SC2712 Y2 32.768KHZ R4310R C36105 +5V C660.5P L722N 9V VD1 HVU202A B+ C4215P C4322P C3722P R31560R C32 10uF16V C22.2uF16V C1910uF16V R16.8K R733K C12 33P 32 1 84 U1ALM4558 R210K R310K C87 10uF16V MIC MIC 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 U2 SA571 C18 472P C152.2uF16V C20 150P R1015K R1168K C8 10uF16V R581K R1310K 56 7 U1BLM4558 C17 222P R515K R615K C132.2uF16V C14 2.2uF16V C9 10uF16V C211uF16V C97103P C10100P 1 W 2 VR110KB 9V B+ OUT GND IN U3 XC6201P402PR 5V R5710K R58100K Q10 MOSFET P D21N5819 L20100uH C84 100uF10V R5582K C82 100uF10V L19100uH C80 100uF10V 9V SW GND FB VinEN S2 TPS16040 C83103P C81103P C19 103P C79103P L18 100nH C78 10uF10V C77103P R5615K C85 10uF10V C27103P C26100P C75 10uF10V C74103P R1710K C24 105P Q1 2SC2712 R212.2K Q2 2SC2712 R1833K LD2LED LD1LED D1 1N4148-SMT R331K R422K R16 2.7K 5V C33 103P R34100R A A 1 W 2 VR210KB C5 682P C6103P R82.2K C16220P C86103P R1210K R596.8KR2410K R30100R C44 27P T5 FLB-962 C4968P C52 3P T7 FLB-962 C608P C680.5P C692P C712P R1933K R47100R

DONGGUAN EMTEK CO., LTD. REPORT NO: KAD110110019E FCC ID: QDVWM-21 DATE: 02/11/2011 Page 1 of 20 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 15 SUBPART B &C REQUIREMENT OF Wireless Microphone MODEL No.: PU-611, WM-U21, UR-611, UR-1016, PV-611, UR-16M, Venu 100, VenuHHM100 BRAND NAME: URsound, califone, edcom FCC ID: QDVWM-21 REPORT NO: KAD110110019E ISSUE DATE: February 11, 2011 Prepared for NINGBO PROMIC TECHNOLOGY CO., LTD. No.5, Ningbo Free Trade Zone, West Area, Ningbo, Zhejiang, China. Prepared by DONGGUAN EMTEK CO., LTD. No.281, Guantai Road, Nancheng District, Dongguan, Guangdong, China TEL: 86-769-22807078 FAX: 86-769-22807079 DONGGUAN EMTEK CO., LTD. REPORT NO: KAD110110019E FCC ID: QDVWM-21 DATE: 02/11/2011 Page 2 of 23 VERIFICATION OF COMPLIANCE Applicant: NINGBO PROMIC TECHNOLOGY CO., LTD. No.5, Ningbo Free Trade Zone, West Area, Ningbo, Zhejiang, China. Product Description: Wireless Microphone Model Number: PU-611, WM-U21, UR-611, UR-1016, PV-611, UR-16M, Venu 100, VenuHHM100 (Note: These samples are the same except the model number and the logo, so we prepare WM-U21 for EMC test.) Brand Name: URsound, califone, edcom File Number: KAD110110019E Date of Test: January 11, 2011 to February 12, 2011 We hereby certify that: The above equipment was tested by DONGGUAN EMTEK CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.4 (2009) and the energy emitted by the sample EUT tested as described in this report is in compliance with conducted and radiated emission limits of FCC Rules Part 15.249. The test results of this report relate only to the tested sample identified in this report. Approved By Sam Lv / Q.A. Manager DONGGUAN EMTEK CO., LTD. DONGGUAN EMTEK CO., LTD. REPORT NO: KAD110110019E FCC ID: QDVWM-21 DATE: 02/11/2011 Page 3 of 23 Ta b l e o f C o n t e n t s 1. GENERAL INFORMATION ........................................................................................................... 4 1.1 PRODUCT DESCRIPTION........................................................................................................................... 4 1.2 RELATED SUBMITTAL(S) / GRANT (S) ..................................................................................................... 5 1.3 TEST METHODOLOGY.............................................................................................................................. 5 1.4 SPECIAL ACCESSORIES............................................................................................................................ 5 1.5 EQUIPMENT MODIFICATIONS.................................................................................................................. 5 1.6 TEST FACILITY........................................................................................................................................ 6 2. SYSTEM TEST CONFIGURATION .............................................................................................. 7 2.1 EUT CONFIGURATION............................................................................................................................. 7 2.2 EUT EXERCISE........................................................................................................................................ 7 2.3 TEST PROCEDURE.................................................................................................................................... 7 2.4 LIMITATION............................................................................................................................................. 7 2.5 CONFIGURATION OF TESTED SYSTEM..................................................................................................... 9 3. SUMMARY OF TEST RESULTS ................................................................................................. 10 4. DESCRIPTION OF TEST MODES............................................................................................... 10 5. RADIATED EMISSION TEST ......................................................................................................11 5.1 MEASUREMENT PROCEDURE................................................................................................................. 11 5.2 TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ....................................................................... 12 5.3 MEASUREMENT EQUIPMENT USED: ...................................................................................................... 13 5.4 OUT OF BAND RADIATED MEASUREMENT RESULT.............................................................................. 13 5.5 RADIATED MEASUREMENT PHOTOS:.................................................................................................... 17 6. BAND EDGE .................................................................................................................................... 18 7. ANTENNA APPLICATION ........................................................................................................... 20 7.1 ANTENNA REQUIREMENT...................................................................................................................... 20 DONGGUAN EMTEK CO., LTD. REPORT NO: KAD110110019E FCC ID: QDVWM-21 DATE: 02/11/2011 Page 4 of 23 1. General Information 1.1 Product Description The NINGBO PROMIC TECHNOLOGY CO., LTD. Model: WM-U21 (referred to as the EUT in this report) The EUT is an short range, lower power, Wireless Microphone designed as an " Input Device. It is designed by way of utilizing the FM modulation achieves the system operating. A major technical descriptions of EUT is described as following: A) Operation Frequency: 913.45~921.35 MHz B) Modulation: FM C) Number of Channel: 4 channels D) Antenna Designation: Internal antenna E) Power Supply: DC 3V Channel frequency:…

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Radiated Emission Setup Photos