PMIEBT2000STEREO SPEAKER

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1 2 34 ABCD 4 3 2 1 D CBA Title Number Revision Size A4 Date: 5-Mar-2012 Sheet of File: E:\ \ \MyDes ign .dd b Drawn By: Blut Tunes RF XTAL KEY I/O 3.3V POWER AUDIO_OUT MIC_ IN RST

Southern Telecom FCC ID: PMIEBT2000 POWER OF ATTORNEY July 29, 2012 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Waltek Services (ShenZhen) Co., Ltd. (Philo Zhong) on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Services (ShenZhen) Co., Ltd. (Philo Zhong) on our behalf shall have the same effect as acts of our own. This authorization expires on July 28, 2013. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, Southern Telecom, 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. Sincerely, Southern Telecom ------------------------------- Victor Kung/Director

2.1 Product View 2.2 EUT – Appearance View

FCC ID Label Sample for Model: EBT2000 FCC ID: PMIEBT2000 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.

Page:58 of 58 Southern Telecom FCC ID: PMIEBT2000 The results shown in this test report refer only to the sample(s) tested , This Test report cannot be reproduced, except in full, without prior written permission of the Company. WALTEK SERVICES Reference No.: WT12074901-S-S-F 17 FCC Label 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 The Label must not be a stick-on paper. The Label on these products must be permanently affixed to the product and readily visible at the time of purchase and must last the expected lifetime of the equipment not be readily detachable. Proposed Label Location on EUT EUT Bottom View/ proposed FCC Label Location FCC ID: PMIEBT2000 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 receivedincluding interference that may cause

2.1 EUT – Open View 2.2 EUT – PCB View

Operation Description EBT2000 is a standard bluetooth stereo speaker, which plays music from Line in input or compatible Bluetoothaudio devices . Volume Control tact switches to control Bluetooth volume level. Connect/ pairing button to connect Bluetooth devices. The speaker consist of several functional blocks (see block diagram). i.) Bluetooth module (57F68) • It is a Class 2 bluetooth module, the crystal frequency is 26MHz, Controls the behavior of the speaker. ii.) Interface controls • Connect or pair, volume tact switches to adjust Bluetooth volume and LED indications for user interface. iii.) Line in • Connect to music player. iv.) Differential /Summing amp • Differentiate Bluetooth module out audio signals, sum the Line in and Bluetooth signals together. v.) 5V regulation circuit • Provide power supply for operational amplifier. vi.) 3V3 regulation circuit • Provide power supply for Bluetooth Module. vii.) Power supply circuit • Filter and distribute out supply to other blocks. viii.) EQ • Control the frequency response. ix.) Power Amp • Amplify the signal The device is a standard bluetooth stereo speaker, The working frequency of RF module 57F68 is setted to 2402MHz ~ 2480MHz, the frequency separation is 1MHz and there are 79 channels. with the spread spectrum code sequences to hopping constantly. To make sure the communication stable, Bluetooth special design the fast acknowledge and frequency hopping plan to ensure that link stability. First link, between bluetooth devices will build a pseudorandom code, Only the pseudorandom code is same, the information transfer will be accepted. Other interference is not possible in the same sequence of interference. Bluetooth through the spread spectrum technology, Make the influence of interference may become very small. The working procedures are: 1. Power on, press and hold thebutton, when the indicator light flashes faster, the EBT2000 enter to pair mode.The EBT2000 will do the frequency hopping according to a certain sequence, and then send the connection command. 2. If there is a Device response, the EBT2000 will judge whether it can be permitted to connect. Prompt enter a passkey. 3. If the passkey is right, then can be permitted to connect, send the connection command to build up the connection. 4. While the connection build up successfully, the data transmission is beginning. At the same time, the EBT2000 and device will shift frequencies in synchronization per a same pseudo randomly ordered list of hopping frequencies, the hopping rate is 1600 times per second. 5. The bandwidth of the receiver, which is set to a fix width by the software, match the hopping channel bandwidth of their corresponding transmitter.

BM2200 FORM NO: NUMBER THIS DOCUMENT IS THE PROPRIETARY PROPERTY OF DHD. IT'S USE IS AUTHORIZED ONLY FOR REPONDING TO A REQUEST FOR QUOTATION. OR FOR THE PERFORMANCE OF WORK FOR DHD. ALL QUESTIONS MUST BE REFERRED TO THE LOCAL PURCHASING DEPARTMENT OF DHD. A MATERIAL SAFETY CDB SCALE SHEET MODEL PART NO. 8 7 6 5 4 3 2 ACDB 1 EF CHECKED BY APPROVED BY DRAWN BY ANGLE DHD MODE NAME mm UNIT VERSION PART NAME PART NO. DATE SIGNATURE DHD MODE NO. 1.0 6 MARK 1 2 3 TOTAL XXX DESCRIPTION 3 2 EF 1 1 1 CUSTOMER DHD AUDIO Co.,Ltd SVR VREF OUTNBOUTNB PGNDBPGNDB PVCCBPVCCB OUTPBOUTPB OUTNAOUTNA PVCCAPVCCA PGNDAPGNDA OUTPA OUTPA SUB_GNDINPAINNASGNDVDDSDIAGVDDPWPGNDSTBYSYNCLKROSCGAIN0GAIN1SVCCVSSINPBINNBMUTE 1 234567891011121314151617 1819202122232425262728 29 30313233 34 3536 U1 IC-BT8491H ANT SPKL- SPKL+ SPKR- SPKR+ INL INR 1.8V GND VCC LED1 LED0 SPI_MOSO SPI_CS SPI_CLK SPI_MOSI KEY6KEY5KEY4KEY3KEY2KEY1 123456 7 8 9 10 11 12 13 14 15 161718192021 22 BT BT1 + C1 2200uF/25V 1 2 3 U2 IC-7809 + C3 470uF/16V U3 IC-1117/3.3V + C4 330uF/16V C5C/104 L1 48 U4-C IC-4558 48 U5-C IC-4558 R15 47 C22 C/104 C23 C/104 R16 10K R17 10K + C24 220uF/16V 123 DC -+ 23 1 U4-A IC-4558 +- 56 7 U4-B IC-4558 12345 PH1 JK/5P/PHONE R5 1K R6 1K R7 47K R8 47K C16 C/102 C17 C/102 + C18 1uF/16V R9 10K R10 24K R11 10K + C19 1uF/16V R12 10K R13 10K R14 24K + C20 1uF/16V + C21 1uF/16V R36 10K R37 10K -+ 23 1 U5-A IC-4558 +- 56 7 U5-B IC-4558 R18 10K R19 10K R20 39K R21 39K + C25 2.2uF/16 + C26 2.2uF/16 R22 10K R23 10K R24 39K R25 39K + C27 2.2uF/16 + C28 2.2uF/16 + C29 1uF/16V + C30 1uF/16V R34 10K R35 10K S1-AS2-AS3-AS4-A R2 10K R3 10K R4 10K LED 1 2 3 4 5 P1 R26 68 123 4 567 P2 123 4 567 P3 C8 C/104 R31 51K R32 20 C9 C/104 R33 30K C10 2.2uF/16V R38 39K C11 C/104 C12 C/104 R39 30K C13 2.2uF/16V C14 104 C15 222 C31 C/224 C33 104 C34 222 C35 C/224 C37 10uF/16V C38 10uF/16V C39 C/104 C40 C/104 R40 20 C41 330pF R41 20 C42 330pF C43 1uF C44 224 C45 224 12 SPL SPEAKER L2 15uH L3 15uH C46 1uF C47 224 C48 224 12 SPR SPEAKER L4 15uH L5 15uH R42 30K R43 10K R44 10K 1 23 SW-A C49 10uF/16V R45 15K C32 472 R47 10K R49 15K C53 472 R51 10K 4 56 SW-B 1 2 3 Q1 R1 470 R48 3.3K R52 2.2 R53 2.2 R54 2.2 R55 2.2 12 MIC R46 10K VREF VCC 3V3 9V LOUT ROUT VREFVREF VREF VREF LOUTROUT SPR- SPR+ SPL- SPL+ VREF VREF SPL+ SPL-SPR+SPR- 3V3 3V3 VCC VCC 3.3 3.3 ROUTLOUT 3.3V 1 2 3 4 56 ABCD 6 5 4 3 2 1 D CBA Title Number Revision Size B Date: 25-Jun-2012 Sheet of File: E:\ \ \bl uet oot h mo del.dd b Drawn By: VREGIN_L 1 VDD_ANA 2 XTAL_IN 3 XTAL_OUT 4 LO_REF 5 AIO_1 6 AIO_0 7 NC 8 UART_TX 9 UART_RX 10 UART_CTS 11 UART_RTS 12 VDD_UART 13 PIO_9 14 PIO_11 15 VDD_PADS 16 VDD_CORE 17 PIO_12 18 PIO_13 19 PIO_14 20 PIO_8 21 PIO_7 22 PIO_6 23 PIO_5 24 PIO_4 25 RST# 26 TEST_EN 27 SPI_MOSI 28 SPI_ CLK 29 SPI_CS# 30 SPI_MOSO 31 LED0 32 LED1 33 VDD_CORE 34 VREGENABLE_H 35 VDD_SMP_CORE 36 LX 37 BAT_P 38 VDD_CHG 39 NC 40 NC 41 NC 42 NC 43 NC 44 MIC_BAIS 45 VREGIN_AUDIO 46 VDD_AUDIO 47 MIC_B_P 48 NC 49 MIC_B_N 50 MIC_A_P 51 MIC_A_N 52 SPKR_B_N 53 SPKR_B_P 54 AU_REF_DCPL 55 SPKR_A_N 56 SPKR_A_P 57 PIO_3 58 PIO_2 59 PIO_1 60 PIO_0 61 VDD_PIO 62 VDD_RADIO 63 RF_P 64 RF_N 65 VDD_RADIO 66 VDD_LO 67 VREGENABLE_L 68 vss 69 Exposed pad U1 C315pF 1V5 C415pF 1V5 C252.2uF R142R2 1V5 C1722000pF 1V51V8 1 2 L4 22uH C27 4.7uF 1V8 C26 10uF C28 2.2uF VBUS R1510K PWR 1V8 C20 22000pF R13 2R2 C21 2.2uF 1V5_AUDIO C24 22000pF K4 K5 K1 K2 K3 C290.1uF 1V8 WP SDA SCL C1822000pF SPI_MOSI SPI_CLK SPI_CS# SPI_MOSO LED C19 2.2uF C60.1uF C70.1uF R1 2.2K MIC+ RO+RO- LO+ LO- C5 47000pF X1TSX3225 26MHZ C16 8pF C15 5pF UNBAL 1 DC 2 NC 3 GND 6 GND 4 GND 8 BAL 5 BAL 7 X2DBF81F107-CSR 1 2 L215NH 1V5 C215pF C1 15pF ANT K4 K1 K2 K3 K5 K6 BT_VCC33 R20 2.2K R21 2.2K R22 2.2K UART_TX UART_RX 1 1 T1 1 1 T4 1 1 T3 1 1 T2 R121K mic_bias mic_bias + 5 - 6 7 48 U2A4558 C8 1uF R310K C9 1uF R2 10K R822K R622K VREF + 3 - 2 1 U2B4558 C11 1uF R5 10K C10 1uF R4 10K R9 22K R722K VREF 9V C131uFC121uF 1 2 3 4 5 CN1CON_5 BT_VCC33 1V8 R1010KR1110K 9V VREF C1410uF OUT R OUT L OUT R OUT L 1 2 CN2CON_2 MIC+ 1 2 3 4 5 CN3CON_5 9V GND 2 VOUT 1 VIN 3 U31117 3.3V BT_VCC33 EC1 100uF C220.1uF C230.1uF Q19014 R1847 R1747 R163.3k BT_VCC33 LED BT_VCC33 R19100 KEYCOM 9V R234.7 PWR 1 2 3 4 5 CN4CON_5 1 2 3 4 CN5CON_4 BTY1621 1 234 86 7 5 CSR IC

Page: 1 of 60 FCC TEST REPORT The results shown in this test report refer only to the sample(s) tested , This Test report cannot be reproduced, except in full, without prior written permission of the Company. WALTEK SERVICES Reference No.: WT12074901-S-S-F FCC ID : PMIEBT2000 Applicant : Southern Telecom Address : 14-C, 53 Street, Brooklyn, New York 11232, US Equipment Under Test (EUT) : Product Name : Stereo Speaker Model No. : EBT2000 Standards : FCC CFR47 Part 15 Section 15.247:2010 Date of Test : July 18 ~ July 25, 2012 Date of Issue : July 26, 2012 Test Engineer : Zero Zhou / Engineer Reviewed By : Philo zhong / Manager Test Result : PASS Prepared By: Waltek Services (Shenzhen) Co., Ltd. 1/F, Fukangtai Building, West Baima Rd., Songgang Street, Baoan District, Shenzhen 518105, China Tel :+86-755-83551033 Fax:+86-755-83552400 — The sample detailed above has been tested to the requirements of Council Directives ANSI C63.4:2003. The test results have been reviewed against the Directives above and found to meet their essential requirements. Page:2 of 60 Southern Telecom FCC ID: PMIEBT2000 The results shown in this test report refer only to the sample(s) tested , This Test report cannot be reproduced, except in full, without prior written permission of the Company. WALTEK SERVICES Reference No.: WT12074901-S-S-F 2 Test Summary Test Items Test Requirement Result Radiated Spurious Emissions (26MHz to 25GHz) 15.205(a) 15.209 15.247(d) PASS Conduct Emission 15.207 PASS 20dB Bandwidth 15.247(a)(1) PASS Maximum Peak Output Power 15.247(b)(1) PASS Frequency Separation 15.247(a)(1) PASS Number of Hopping Frequency 15.247(a)(1)(iii) PASS Dwell time 15.247(a)(1)(iii) PASS Maximum Permissible Exposure (Exposure of Humans to RF Fields) 1.1307(b)(1) PASS Page:3 of 60 Southern Telecom FCC ID: PMIEBT2000 The results shown in this test report refer only to the sample(s) tested , This Test report cannot be reproduced, except in full, without prior written permission of the Company. WALTEK SERVICES Reference No.: WT12074901-S-S-F 3 Contents Page 1 COVER PAGE ........................................................................................................................................................ 1 - 2 TEST SUMMARY .................................................................................................................................................. 2 3 CONTENTS............................................................................................................................................................. 3 4 GENERAL INFORMATION ................................................................................................................................ 5 4.1 CLIENT INFORMATION........................................................................................................................................... 5 4.2 GENERAL DESCRIPTION OF E.U.T. ........................................................................................................................ 5 4.3 DETAILS OF E.U.T................................................................................................................................................. 5 4.4 DESCRIPTION OF SUPPORT UNITS.......................................................................................................................... 5 4.5 STANDARDS APPLICABLE FOR TESTING................................................................................................................ 5 4.6 TEST FACILITY...................................................................................................................................................... 6 4.7 TEST LOCATION.................................................................................................................................................... 6 5 EQUIPMENT USED DURING TEST .................................................................................................................. 7 6 CONDUCTED EMISSION .................................................................................................................................... 9 6.1 E.U.T. OPERATION................................................................................................................................................ 9 6.2 EUT SETUP......................................................................................................................................................... 10 6.3 CONDUCTED EMISSION TEST RESULT................................................................................................................. 10 6.4 PHOTOGRAPH – CONDUCTED EMISSION TEST SETUP.......................................................................................... 13 7 RADIATED SPURIOUS EMISSIONS ............................................................................................................... 14 7.1 EUT OPERATION :............................................................................................................................................... 14 7.2 MEASUREMENT UNCERTAINTY........................................................................................................................... 14 7.3 TEST SETUP......................................................................................................................................................... 15 7.4 SPECTRUM ANALYZER SETUP............................................................................................................................. 17 7.5 TEST PROCEDURE................................................................................................................................................ 18 7.6 CORRECTED AMPLITUDE & MARGIN CALCULATION........................................................................................... 18 7.7 SUMMARY OF TEST RESULTS..........................................................................................…

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2.1 Photograph – Radiation Spurious Emission Test Setup Below 30MHz 30MHz - 1GHz Above 1GHz 2.2 Photograph – Conducted Emission Test Setup