2AXGRVA1Voice Amplifier

1 Portable Digital Voice Amplifier S358 Pro series User Manual 2 Welcome to use digital voice amplifier S358 Pro series, its capacity of lithium batteries can reach to 4000mAh. With double endurance and long working time, it’s suitable for teaching, meeting, training, tour guide, singing, square dance, sales promotion, outdoor activities, etc. Please read the manual carefully before using, so that you can operate the voice amplifier correctly and get ideal performance. Product functional features: 1. This amplifier has wired and UHF wireless versions. The wired version has no UHF receiving circuit and cannot be used as a wireless version. The wireless version has a UHF wireless receiving circuit, which can achieve wireless amplification with the UHF wireless transmitter. 2. Wired version has 2000mAh or 4000mAh built-in lithium battery separately; and UHF wireless version has 2000mAh or 4000mAh built-in lithium battery separately. 3. Bluetooth function, you can connect the phone, you can also answer the phone via S358 Pro. 4. With digital amplification technology, its rated power is 5W and max power is up to 10W. 5. High performance double NdFeB foam edge loudspeaker, with clear acoustic fidelity, loud voice, and high sensitivity. 6. Equipped with mainstream USB-C interface, and can be charged with computer USB port and mobile phone charger. 7. Dial volume switch, simple and fast volume control. Clear voice tips for mode switch. 3 8. Support TF card, USB disk play, AUX-in, support MP3, WMA, WAV files, support cycle play. Computer speaker function, it can transmit audio through USB port. 9. Memorizing the status and playback location automatically, enter the state before shutdown every time you turn it on. 10. Patented industrial design, smooth structure, comfortable touch and easy portability. Function map： 4 Keys and Ports instruction： Mode Shortly press to switch mode in the power-on state, the order of the mode switching: wait mode → UHF mode (only UHF wireless version) → Bluetooth mode → recording mode (microphone inserted, USB disk or TF card) → MP3 mode (USB disk or TF Card inserted) → AUX mode (the audio cable plugged in). Play/ Pause In MP3, AUX, Bluetooth and USB sound card modes, short press to pause playback, and short press again to resume playback; In recording mode, short press to start recording, short press again to pause recording, long press to exit recording and save the recording file; In Bluetooth mode, After connecting with the mobile phone, short press to answer the call, long press to reject the call. If you press this key during the call, it will hang up the call. Next In MP3 Mode, short press to play the next song, long press to fast forward. Previous In MP3 Mode, short press to play the previous song, long press to fast backward. Cycle/Coding In MP3 mode, short press cycle button to switch between full cycle and single cycle mode; For UHF wireless version in UHF mode, short press to do pairing. Mic-in In Standby mode, insert microphone to 3.5mm microphone interface to amplify; In recording mode, insert microphone to record. 5 Aux-in 3.5mm audio interface, support music play, when audio cable plugged in, it will switch to AUX mode automatically USB Port When USB disk inserted, it will play MP3 file automatically. When the voice amplifier is connected to a computer, you can read and write USB disk through the computer. TF Card Port When TF card inserted, it will play MP3 file automatically. When the voice amplifier is connected to a computer, you can read and write TF card through the computer. USB-C Charging Port Charging port supports charging through 5V mobile phone charger and computer USB port; You can connect the charging port to the computer to read and write USB disk, TF card and play music from your computer. Dial Volume Switch Turn the dial to turn the machine on and off, and adjust the volume, turn counterclockwise (pull left) to turn on and increase the volume, and turn clockwise (pull right) to decrease the volume and turn off. Operation description： 1. Power switch: Pull up the switch counterclockwise, turn on the voice amplifier after you hear a "Ka" sound. It will broadcast the current mode. Pull down the switch clockwise, turn off the voice amplifier after you hear a "Ka" sound. When it is switched off, the voice amplifier will save the current mode. Next time when you turn it on, it will automatically load the saved mode. 6 2. Volume control: Rotate the volume dial to adjust the volume. Pull the round button counterclockwise to increase the volume and pull down clockwise to decrease the volume. 3. Microphone amplification: Insert the microphone into the MIC interface, and press to switch to “Standby mode” to amplify. Please wear the microphone well and properly adjust the microphone position and keep at least 50cm distance from amplifier to avoid howling. 4. MP3 play: In “Standby mode”, insert USB disk or TF card saved with audio files in MP3, WMA and WAV formats, it will play the audio files automatically. Short press / to next song/previous song, long press / to fast forward / fast backward. Short press to switch between all cycle and single loop. 5. AUX mode: In standby mode, the voice amplifier is connected to external audio sources such as computers, mobile phones, PAD, MP3 and other external audio sources through a 3.5mm AUX audio cable, and it will automatically switch to "AUX mode", which can be used as an external speaker. 6. UHF mode: Press to enter "UHF mode", then press to enter the pairing state. After the transmitter is turned on, press the pairing button to transmit the signal. The voice amplifier is connected when it receives the pairing signal. After the connection is successful, 7 insert a microphone into the UHF transmitter, keep the UHF transmitter 1 meter away from the voice amplifier to wirelessly amplify. If the pairing fails, press again to return to the pairing state, and then you can do pairing again (only for the UHF wi…

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Report No. : EED39M00060001 Q/CTI LD-SUCEED-1007 Version 1.0 Page 72 of 80 APPENDIX 2 PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS View of Product-1 View of Product-2 Report No. : EED39M00060001 Q/CTI LD-SUCEED-1007 Version 1.0 Page 73 of 80 View of Product-3 View of Product-4 Report No. : EED39M00060001 Q/CTI LD-SUCEED-1007 Version 1.0 Page 74 of 80 View of Product-5 View of Product-6

F C C I D ： 2 A X G R VA 1 20.2 mm 3.2 mm

Report No. : EED39M00060001 Q/CTI LD-SUCEED-1007 Version 1.0 Page 75 of 80 View of Product-7 View of Product-8 Report No. : EED39M00060001 Q/CTI LD-SUCEED-1007 Version 1.0 Page 76 of 80 View of Product-9 View of Product-10 Report No. : EED39M00060001 Q/CTI LD-SUCEED-1007 Version 1.0 Page 77 of 80 View of Product-11 View of Product-12 Report No. : EED39M00060001 Q/CTI LD-SUCEED-1007 Version 1.0 Page 78 of 80 View of Product-13 View of Product-14 Report No. : EED39M00060001 Q/CTI LD-SUCEED-1007 Version 1.0 Page 79 of 80 View of Product-15 View of Product-16 Report No. : EED39M00060001 Q/CTI LD-SUCEED-1007 Version 1.0 Page 80 of 80 View of Product-17 View of Product-18 The testing data and results in this report are just for scientific research, education, internal quality control and product development etc. *** End of Report *** The test report is effective only with both signature and specialized stamp; the result(s) shown in this report refer only to the sample(s) tested. Without written approval of CTI, this report can’t be reproduced except in full.

Report No. : EED39M00060003 Q/CTI LD-SUCEED-1007 Version 1.0 Page 1 of 7 RF Exposure Evaluation Report Product : Voice Amplifier Trade mark : NORWII / KNORVAY Model/Type reference : S358 Pro Serial Model : S100,S108,S118,S128,S158,S168,S188,S198,S200, S208,S218,S228,S258,S268,S288,S298,S300,S301, S302,S303,S305,S306,S307,S308,S309,S310,S311, S312,S315,S316,S317,S318,S319,S320,S328,S330, S338,S358,S360,S365,S368,S378,S388,S398,S500, S501,S502,S503,S505,S506,S507,S508,S509,S510, S511,S512,S515,S516,S517,S518,S519,S520,S528, S530,S558,S560,S565,S568,S578,S588,S598,S600, S601,S602,S603,S605,S606,S607,S608,S609,S610, S611,S612,S615,S616,S617,S618,S619,S620,S628, S630,S6580,S655,S658,S668,S678,S680,S688,S698, S700,S800,S801,S802,S803,S805,S806,S807,S809, S810,S811,S812,S815,S816,S817,S818,S819,S820, S828,S830,S858,S860,S865,S868,S878,S880,S900, S358Pro+ Report Number : EED39M00060003 FCC ID : 2AXGRVA1 Date of Issue : Mar 30, 2021 Test Standards : 47 CFR Part 2.1093 KDB447498D01 General RF Exposure Guidance v06 Test result : PASS Prepared for: Shanghai Norwii Technology Co., Ltd. NO.277, Jinfeng Road, Pudong New Area, Shanghai 201201，China Prepared by: Centre Testing International (Suzhou) CO., LTD. Building 18, Zhihui New Town Ecological Industrial Park, No. 1206, Jinyang East Road, Lujia Town, Kunshan, Jiangsu, China TEL: +86-0512-5015 8288 Compiled by: Reviewed by: Approved by: Date: Mar 30, 2021 Check No.: 3915566929 Report No. : EED39M00060003 Q/CTI LD-SUCEED-1007 Version 1.0 Page 2 of 7 Modification Record No. Last Report No. Modification Description 1 EED39M00060003 First report Report No. : EED39M00060003 Q/CTI LD-SUCEED-1007 Version 1.0 Page 3 of 7 TABLE OF CONTENTS 1 General Information ...................................................................................................... 4 1.4 Test Location .......................................................................................................... 5 1.5 Test Facility ............................................................................................................ 5 1.6 Deviation from Standards...................................................................................... 5 1.7 Abnormalities from Standard Conditions ............................................................ 5 1.8 Other Information Requested by the Customer .................................................. 5 2 SAR Evaluation ............................................................................................................. 6 2.1 RF Exposure Compliance Requirement ............................................................... 6 2.1.1 Standard Requirement ....................................................................................... 6 2.1.2 Limits ................................................................................................................... 6 2.1.3 EUT RF Exposure ............................................................................................... 6 PHOTOGRAPHS OF EUT Constructional Details .............................................................. 7 Report No. : EED39M00060003 Q/CTI LD-SUCEED-1007 Version 1.0 Page 4 of 7 1 General Information 1.1 Client Information Applicant: Shanghai Norwii Technology Co., Ltd. Address of Applicant: NO.277, Jinfeng Road, Pudong New Area, Shanghai 201201 ， China Manufacturer: Shanghai Norwii Technology Co., Ltd. Address of Manufacturer: NO.277, Jinfeng Road, Pudong New Area, Shanghai 201201 ， China Factory: Shanghai Norwii Technology Co., Ltd. Address of Factory: NO.277, Jinfeng Road, Pudong New Area, Shanghai 201201，China 1.2 General Description of EUT Product Name: Voice Amplifier Model No.(EUT): S358 Pro Serial Model: S100,S108,S118,S128,S158,S168,S188,S198,S200,S208,S218,S228, S258,S268,S288,S298,S300,S301,S302,S303,S305,S306,S307,S308, S309,S310,S311,S312,S315,S316,S317,S318,S319,S320,S328,S330, S338,S358,S360,S365,S368,S378,S388,S398,S500,S501,S502,S503, S505,S506,S507,S508,S509,S510,S511,S512,S515,S516,S517,S518, S519,S520,S528,S530,S558,S560,S565,S568,S578,S588,S598,S600, S601,S602,S603,S605,S606,S607,S608,S609,S610,S611,S612,S615, S616,S617,S618,S619,S620,S628,S630,S6580,S655,S658,S668,S678 ,S680,S688,S698,S700,S800,S801,S802,S803,S805,S806,S807,S809, S810,S811,S812,S815,S816,S817,S818,S819,S820,S828,S830,S858, S860,S865,S868,S878,S880,S900, S358Pro+ Model difference: The same is Circuit principle, PCB Layout, key components, etc. The difference is the product color, model. Trade Mark: NORWII / KNORVAY EUT Supports Radios application: Bluetooth V4.2 Dual mode 1.3 Product Specification subjective to this standard Frequency Range: BT& BLE: 2402MHz to 2480MHz Modulation Type: BT: GFSK, π/4DQPSK BLE: GFSK Number of Channels: BT: 79 BLE: 40 Sample Type: Portable production Test Power Grade: 2(manufacturer declare ) Test Software of EUT: FCC Assist 2.4 (manufacturer declare) Antenna Type: PCB antenna Antenna Gain: -0.58dbi Report No. : EED39M00060003 Q/CTI LD-SUCEED-1007 Version 1.0 Page 5 of 7 Power Supply: Input: DC 5V Battery: DC3.7V 2000 mAh (Li-on Rechargeable Battery ) Max output power: BT:2.16dBm(1.644mW)* BLE:1.53dBm(1.422mW)* The Max BT Output power refer to the report EED39M00060001 The Max BLE Output power refer to the report EED39M00060002 Sample Received Date: Feb. 23, 2021 Sample tested Date: Feb. 23, 2021 to Mar. 3, 2021 The tested sample(s) and the sample information are provided by the client. 1.4 Test Location All test facilities used to collect the test data are located at Building 18, Zhihui New Town Ecological Industrial Park, No. 1206, Jinyang East Road, Lujia Town, Kunshan, Jiangsu, China. 1.5 Test Facility The test facility is recognized, certified, or accredited by the following organizations: A2LA-Lab Cert. No. 5734.01 Centre Testing International (Suzhou) CO., LTD. EMC Laboratory has been accredited by A2LA for technical competence in the field of electrical testing, and proved to be in compliance with ISO/IEC 17025: …

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Report No. : EED39M00060002 Q/CTI LD-SUCEED-1007 Version 1.0 Page 1 of 42 TEST REPORT Product : Voice Amplifier Trade mark : NORWII / KNORVAY Model/Type reference : S358 Pro Serial Model : S100,S108,S118,S128,S158,S168,S188,S198,S200, S208,S218,S228,S258,S268,S288,S298,S300,S301, S302,S303,S305,S306,S307,S308,S309,S310,S311, S312,S315,S316,S317,S318,S319,S320,S328,S330, S338,S358,S360,S365,S368,S378,S388,S398,S500, S501,S502,S503,S505,S506,S507,S508,S509,S510, S511,S512,S515,S516,S517,S518,S519,S520,S528, S530,S558,S560,S565,S568,S578,S588,S598,S600, S601,S602,S603,S605,S606,S607,S608,S609,S610, S611,S612,S615,S616,S617,S618,S619,S620,S628, S630,S6580,S655,S658,S668,S678,S680,S688,S698, S700,S800,S801,S802,S803,S805,S806,S807,S809, S810,S811,S812,S815,S816,S817,S818,S819,S820, S828,S830,S858,S860,S865,S868,S878,S880,S900, S358Pro+ Report Number : EED39M00060002 FCC ID : 2AXGRVA1 Date of Issue : Mar 30, 2021 Test Standards Result 47 CFR Part 15 Subpart C PASS Prepared for: Shanghai Norwii Technology Co., Ltd. NO.277, Jinfeng Road, Pudong New Area, Shanghai 201201，China Prepared by: Centre Testing International (Suzhou) CO., LTD. Building 18, Zhihui New Town Ecological Industrial Park, No. 1206, Jinyang East Road, Lujia Town, Kunshan, Jiangsu, China TEL: +86-0512-5015 8288 Compiled by: Reviewed by: Approved by: Date: Mar 30, 2021 Check No.: 3915566929 Report No. : EED39M00060002 Q/CTI LD-SUCEED-1007 Version 1.0 Page 2 of 42 Modification Record No. Last Report No. Modification Description 1 EED39M00060002 First report Report No. : EED39M00060002 Q/CTI LD-SUCEED-1007 Version 1.0 Page 3 of 42 TABLE OF CONTENTS 1. Test Summary ................................................................................................................... 4 2. Test Requirement .............................................................................................................. 5 2.1. Test Setup ................................................................................................................... 5 2.2. Test Environment ....................................................................................................... 6 2.3. Test Condition ............................................................................................................ 6 3. General Information .......................................................................................................... 7 3.1. Client Information ...................................................................................................... 7 3.2. General Description of EUT ...................................................................................... 7 3.3. Product Specification subjective to this standard .................................................. 7 3.4. Description of Support Units .................................................................................... 8 3.5. Test Location .............................................................................................................. 8 3.6. Test Facility ................................................................................................................ 8 3.7. Deviation from Standards ......................................................................................... 8 3.8. Abnormalities from Standard Conditions ................................................................ 8 3.9. Other Information Requested by the Customer ...................................................... 8 3.10. Measurement Uncertainty (95% confidence levels, k=2) .................................... 9 4. Equipment List ................................................................................................................ 10 5. Radio Technical Requirements Specification .............................................................. 11 5.1. Reference Documents for Testing .......................................................................... 11 5.2. Test Results List ...................................................................................................... 11 Appendix A): DTS Bandwidth ............................................................................................... 12 Appendix B): Maximum conducted output power ............................................................... 14 Appendix C): Maximum power spectral density .................................................................. 16 Appendix D): Band-edge for RF Conducted Emissions ..................................................... 18 Appendix E): Conducted Spurious Emissions .................................................................... 19 Appendix F): Antenna Requirement ..................................................................................... 26 Appendix G): AC Power Line Conducted Emission ............................................................ 27 Appendix H): Restricted bands around fundamental frequency (Radiated) ..................... 30 Appendix I): Radiated Spurious Emissions ......................................................................... 35 APPENDIX 1 PHOTOGRAPHS OF TEST SETUP .................................................................. 40 APPENDIX 2 PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS .............................. 42 Report No. : EED39M00060002 Q/CTI LD-SUCEED-1007 Version 1.0 Page 4 of 42 1. Test Summary Test item Test Requirement Test method Result Antenna Requirement 47 CFR Part 15Subpart C Section 15.203/15.247 (c) ANSI C63.10-2013 PASS AC Power Line Conducted Emission 47 CFR Part 15Subpart C Section 15.207 ANSI C63.10-2013 PASS Maximum conducted output power 47 CFR Part 15Subpart C Section 15.247 (b)(3) ANSI C63.10-2013 PASS DTS Bandwidth 47 CFR Part 15Subpart C Section 15.247 (a)(2) ANSI C63.10-2013 PASS Maximum Power Spectral Density 47 CFR Part 15Subpart C Section 15.247 (e) ANSI C63.10-2013 PASS Band-edge for RF Conducted Emissions 47 CFR Part 15Subpart C Section 15.247(d) ANSI C63.10-20…

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Report No. : EED39M00060002 Q/CTI LD-SUCEED-1007 Version 1.0 Page 40 of 42 APPENDIX 1 PHOTOGRAPHS OF TEST SETUP Conducted spurious emission Test Setup-1 Radiated spurious emission Test Setup-2 (Below 1GHz) Report No. : EED39M00060002 Q/CTI LD-SUCEED-1007 Version 1.0 Page 41 of 42 Radiated spurious emission Test Setup-3(Above 1GHz) Report No. : EED39M00060002 Q/CTI LD-SUCEED-1007 Version 1.0 Page 42 of 42 APPENDIX 2 PHOTOGRAPHS OF EUT CONSTRUCTIONAL DETAILS Refer to Report No. EED39M00060001 for EUT external and internal photos. The testing data and results in this report are just for scientific research, education, internal quality control and product development etc. *** End of Report *** The test report is effective only with both signature and specialized stamp; the result(s) shown in this report refer only to the sample(s) tested. Without written approval of CTI, this report can’t be reproduced except in full.