VO8-LW12Bluetooth Headset

FCC ID: VO8-LW12 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 interferencereceived, including interference that may causeundesired operation. FCC STATEMENT 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. RF warning statement: The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. void the user's authority to operate the equipment. Changes or modifications not expressly approved by the party responsible for compliance could

LW12（Q9）function block diagram Crystal Key part Bluetooth chipset ISSC IS1636N Filter XTL57110 EEPROM IS24C08 LI-BATTERY 041018 D11 32OHM SPK11B-1 Microphone 4015 Switch SKRWAEE030 Charger DC-096 16MHz

SCS-F18: Project and Product Certification Representative Authorization LetterPage1of2Rev 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) FromTo Approved Date Initial Release (current)1.01.0Nov-14-2006 Revised wording(current)1.02.0Sept–25-2007 SCS-F18: Project and Product Certification Representative Authorization LetterPage2of2Rev 2.0 Guangzhou Liwei Electronics Co.,Ltd. 02/24/2011 To: SIEMIC, INC. 2206 Ringwood Avenue, San Jose, CA 95131 USA Dear Sir/Madam, Re:Project and ProductCertification Representative Authorization Letter We,Guangzhou Liwei Electronics Co.,Ltd.hereby authorize SIEMIC, INC. to act as a Certification Bodyforcertifyingfor the following project(s): Product Description:Bluetooth Headset ModelName:LW12 We affirm that between SIEMIC andGuangzhou Liwei Electronics 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. Sincerely, Boyao/General Engineer Tel:+86-020-86062626Fax:+86-020-86062626-826 E-mail:[email protected] No.33,Zhenzhongbei Road,Shenshan Industrial Park Baiyuan District Guangzhou 510005 P.R. China

Report No.:ENC110221GZ22F1-1 Page1of4 ATTACHMENTI PHOTOGRAPHS OF EUT ALL VIEW OF SAMPLE Report No.:ENC110221GZ22F1-1 Page2of4 Report No.:ENC110221GZ22F1-1 Page3of4 Report No.:ENC110221GZ22F1-1 Page4of4

Bluetooth Headset Model:LW12 FCC ID: VO8-LW12 Guangzhou Liwei Electronics Co.,LTD. Made in China

Bluetooth Headset Model:LW12 FCC ID: VO8-LW12 Guangzhou Liwei Electronics Co.,LTD. Made in China Label location

Report No.:ENC110221GZ22F1-2 Page1of4 ATTACHMENTII InternalPhotos Report No.:ENC110221GZ22F1-2 Page2of4 Report No.:ENC110221GZ22F1-2 Page3of4 Report No.:ENC110221GZ22F1-2 Page4of4

Circuit Description Bluetooth is a short-range wireless communication technology. The design applied is in internationalidentification ISM (Industrial Scientific and Medical) frequency bandwidth environment that is2.4GHz~2.48GHz bandwidth. TheLW12Bluetooth Headset is a wirelessmonoheadset manufactured with the Latest Bluetoothtechnology, complied Bluetooth specification v2.0. Within a range of 10 meters, LW12Bluetoothheadset can connect to other Bluetooth devices which have built-in audio gateway,such as MobilePhone, Desktop, Notebook Computer or PDA etc. The Headset consists of the Changer Circuit, 1.8V Switched mode Regulator, Bluetooth HeadsetModule IS1637N, Audio Speaker Circuit, Microphone Bias, Status indicating LED and ThreeMultifunction Buttons for power on/off, pairing, call control, Volume Control etc. Charger Circuit The Headset are often powered internally using a 3.7 volt Lithium-ion Polymer with short circuitprotection and a capacity of 120mAh, The battery charger is based on theU2, U2 has a VCC input forthe power source from an external5.0~5.5volt DC supply. An output to the battery, Battery volt is forMicrophone Bias circuit and Bluetooth Module power 1.8V DC/DC circuit. Bluetooth module IS1601G The IC/CPU is a Class 2 Bluetooth sub-system using BlueCore2-Headset ROM chipset fromleading Bluetooth chipset supplier ISSC with a maximal output power of less than 4dBm. The moduleblock includes Bluecore02 IC, EEPROM, Band pass Filter and Crystal for clock. The RF circuit includes the antenna matching components and a ceramic antenna welded in the circuitboard. The crystal provides the whole circuit the standard reference frequency of 16MHz. There is no externalground connection.Theground is only that of the printed circuitboard. Switched mode 1.8 Volt regulator For optimum efficiency, a switch mode power supply provides the 1.8V for digital, analogue and RFportions of the device. This converter is powered from a Li-polymer battery.

FCC ID :VO8-LW12 Bluetooth (Portable device) According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy levelin excess of the Commission’s guidelines. According to KDB 447498 (2)(a)(i) Frequency Range Low Frequency (MHz)High Frequency(MHz) Center frequency (MHz) 60/f SAR Limitation (mw) 24022480244124.5 Maximum measured transmitter power: Conducted Power (mW)Max Antenna GainEIRP (mW) 0.897 2.0dBi or 1.585numeric 1.422 1.026 2.0dBi or 1.585numeric 1.626 1.045 2.0dBi or 1.585numeric 1.656 Remark：EIRP=P*G=1.045*1.585=1.656mW Threshold at which no SAR required is 25 mw. Maximum Tx power is1.656mw EIRP. Conclusion: No SAR is required. SIMULTANEOUS TRANSMISSION EVALUATION Signature RayZhou/ManagerFeb.25,2011

10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1 A B C D E F G A B C D E F G TP1 TP2 TP3 TP6 TP9 TP10 TP11 TP13 TP14 TP15 TP16 RF_TP MIC+ MIC- TEST TXD RXD CHAG SAR VOL+ VOL- EAN Test Pad descriptiom RF PATH: 1.Components need as close as possible 2.PCB is 4-layer FR4 ,RF path need to use 50 ohm impedance 2 / A4 DOC STATUS: SHEET SIZE: CONFIDENTIAL DOCUMENT OF Litchi mm 1 N/A DIMENSION UNIT: PAGE NO: R0.1 REVISION: ISSUE DATE: REFERENCE: Wendel.liu APPROVED BY: CHECKED BY: DRAWN BY: CIRCUIT DIAGRAM R&D SCALE: DOCUMENT TYPE: RESPONSIBLE DEPT.: PROJECTION: DOCUMENT NO: LWM12(Q9) PROJECT DISCRIPTION: Litchi TP4 Reset 1 LOUT+ 2 LOUT- 3 AGND1 4 1V8_CORE1 5 GND 6 VDD_IO 7 RST_N 8 P22/MFB 9 LED1 10 LED0 11 PWR 12 BK18_O 24 GND1 23 P11 22 HCI_TXD 21 HCI_RXD 20 1V8_CORE2 19 ADPT_IN 18 BAT_IN 17 1V8_SAR 16 SYS_PW 15 BK18_L 14 BK_LX 13 BK_GND 25 P20 26 P03/VOL- 27 P24/VOL+ 28 P07 29 P12/SCL 30 P13/SDA 31 EAN 32 VDD_IO2 33 XO_P 34 XO_N 35 EP1 36 VCC_RF 37 RF_TP6 38 RF_TP3 39 RF_TP5 40 RX_CLS1 41 EP2 42 RTX 43 EP3 44 AGND2 45 LIN- 46 LIN+ 47 MIC_BIAS 48 AVDD 49 EP4 U1 IS1637N SPK+ SPK- L1 10uH C19 10uF 6.3V 1 2 3 4 X1 16MHz L2 1.8nH C4 0R ANT TP6 TP9 TP10 TP13 TP3 TP16 C23 1uF C15 10pF 50V C13 10pF 50V C17 1uF 6.3V C16 1uF C26 15pF 50V C14 1uF 16V C5 1pF 50V C1 0R C8 ?pF 50V C2 1.5pF 50V C12 10uF 6.3V TP1 C21 1uF C24 1uF TP21 L3 0R TP2 R1 3k R2 3k C6 22nF 16V C10 22nF 16V C18 1uF C3 15pF 50V D1 6.5V D2 6.5V MIC+1 MIC-1 3 4 2 1 S1 SW-SPST-13-24 PB-SPST-MOM R G 1 2 3 4 D3 G S D Q1 NTA4151N C9 0.1uF TP4 R5 22k R4 3k SYS_PW 1V8 1V8 CHARGER_IN 1V8 VOL- VOL+ SCL SDA 1V8 1V8 BAT+ SYS_PW 1V8 WP GND GND GND GND GND GND GND 1V8 GND GND LED_G DCIN 2 / A4 DOC STATUS: SHEET SIZE: CONFIDENTIAL DOCUMENT OF Litchi mm 2 N/A DIMENSION UNIT: PAGE NO: R0.1 REVISION: ISSUE DATE: REFERENCE: Wendel.liu APPROVED BY: CHECKED BY: DRAWN BY: CIRCUIT DIAGRAM R&D SCALE: DOCUMENT TYPE: RESPONSIBLE DEPT.: PROJECTION: DOCUMENT NO: LWM12(Q9) PROJECT DISCRIPTION: 10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1 A B C D E F G A B C D E F G Battery Protection VOL Control DC-2.0 EEPROM Litchi TP11 C20 10uF 10V SW2 VOL+ SW3 VOL- TP14 TP15 1 A0 2 A1 3 A2 4 GND 5 SDA 6 SCL 7 WP 8 VCC U2 IS24C08A R3 4.7K 1 2 D7 6.5V 1 2 D8 6.5V BAT+ BAT- 1 2 X2 DCJACK-2.0 3 IN 2 VOUT 1 GND U3 RT9161 D6 CDSU400B C7 1uF 16V D9 CDSU400B CHARGER_IN VOL+ VOL- 1V8 SCL SDA WP BAT+ DCIN

The results shown in this test report refer only to the sample(s) tested unless otherwise stated and the sample(s) are retained for 30 days only. The document is issuedby ENC, this document cannot be reproduced except in full with our prior written permission. The document is available on request and the brief informationfor its validation can be assessable and confirmed athttp://www.enc-lab.com. 317/3193/FHuiCheng Building, XiangPuTel:+86-020-23314234Fax:+86-020-8256 8534 Street, DongPu, TianHe, GuangZhouE-mail: enc@ enc-lab.comHttp://www.enc-lab.com EastNoticeCertification FCC Radio Test Report FCC ID: VO8-LW12 This report concerns (check one):■Original Grant□Class II Change For Bluetooth Headset ModelName:LW12 Brand Name:Quikcell Report No.:ENC110221GZ22F1 Date of Issue:Feb.25, 2011 Prepared For Guangzhou LiweiElectronics Co., Ltd. No.33,Zhenzhongbei Road,Shenshan Industrial Park Baiyuan District Guangzhou 510005P.R. China TEL:+86-20-8606 2626 FAX:+86-20-8606 2626-826 Prepared By East Notice Certification Service Co.,Ltd. 317/319,3/F, HuiCheng Building, XiangPu Street, DongPu, TianHe, GuangZhou, China TEL:+86-20-23314234 FAX:+86-20-8256 8534 The results shown in this test report refer only to the sample(s) tested unless otherwise stated and the sample(s) are retained for 30 days only. The document is issuedby ENC, this document cannot be reproduced except in full with our prior written permission. The document is available on request and the brief informationfor its validation can be assessable and confirmed athttp://www.enc-lab.com. 317/3193/FHuiCheng Building, XiangPuTel:+86-020-23314234Fax:+86-020-8256 8534 Street, DongPu, TianHe, GuangZhouE-mail: enc@ enc-lab.comHttp://www.enc-lab.com EastNoticeCertification Report No.:ENC110221GZ22F1 Page1of58 TABLE OF CONTENTS 1 . CERTIFICATION.............................................................................................................................3 2 . SUMMARY OF TEST RESULTS.................................................................................................4 2.1 TEST FACILITY............................................................................................................................5 2.2 MEASUREMENT UNCERTAINTY..............................................................................................5 3 . GENERAL INFORMATION...........................................................................................................6 3.1 GENERAL DESCRIPTION OF EUT............................................................................................6 3.2 DESCRIPTION OF TEST MODES..............................................................................................8 3.3 TABLE OF PARAMETERS OF TEXT SOFTWARE SETTING..................................................8 3.4 BLOCK DIGRAM SHOWING THE CONFIGURATION OF SYSTEM TESTED.......................9 3.5 DESCRIPTION OF SUPPORT UNITS(CONDUCTED MODE).............................................10 4 . EMC EMISSION TEST.................................................................................................................11 4.1 CONDUCTED EMISSION MEASUREMENT...........................................................................11 4.1.1 POWER LINE CONDUCTED EMISSION LIMITS.................................................................11 4.1.2 MEASUREMENT INSTRUMENTS LIST AND SETTING.....................................................11 4.1.3 TEST PROCEDURE...............................................................................................................12 4.1.4 DEVIATION FROM TEST STANDARD..................................................................................12 4.1.5 TEST SETUP...........................................................................................................................12 4.1.6 EUT OPERATING CONDITIONS...........................................................................................13 4.1.7 TEST RESULTS......................................................................................................................14 4.2RADIATED EMISSION MEASUREMENT................................................................................16 4.2.1 RADIATED EMISSION LIMITS................................................................................16 4.2.2 MEASUREMENT INSTRUMENTS LIST ANS SETTING..............................................17 4.2.3 TEST PROCEDURE...............................................................................................................18 4.2.4 DEVIATION FROM TEST STANDARD..................................................................................18 4.2.5 TEST SETUP...........................................................................................................................19 4.2.6 EUT OPERATING CONDITIONS...........................................................................................19 4.2.7 TEST RESULTS (BETWEEN30–1000 MHZ)...........................................................20 4.2.8 TEST RESULTS (ABOVE 1000 MHZ)..................................................................................22 5 . NUMBER OF HOPPING CHANNEL.........................................................................................34 5.1 APPLIED PROCEDURES / LIMIT.............................................................................................34 5.1.1 MEASUREMENT INSTRUMENTS LIST AND SETTING....................................................34 5.1.2 TEST PROCEDURE...............................................................................................................34 5.1.3 DEVIATION FROM STANDARD............................................................................................34 5.1.4 TEST SETUP...........................................................................................................................34 5.1.5 EUT OPERATION CONDITIONS...........................................…

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