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    Bluetooth Voice Amplifier, Power Amplifiers, Portable Mini Wired Microphone Headset for Teacher Classroom & Outdoor Lectures, Teaching, Tour Guides, USB-C Rechargeable - 2000mAh, Black

    • Effective for Teaching - With a 10-watt output power,the portable voice amplifier with wired headset microphone make your voice louder and travel further, helping students listen more clearly and attentively. Its lightweight and portable design makes it a favorite among teachers, fitness instructors, tour guides, promotion events
    • Loud and Clear Sound - 3-inch speakers plus a booster circuit makes the voice amplifier crystal clear sound with good sound quality, effectively saving the teacher's throat. Designed for educators, Trusted by Professionals. Teacher must haves
    • Teach Without Ear-Piercing Feedback - The Voice Amplifier utilizes advanced frequency shifting technology to supress feedback effectively. To ensure optimal performance, maintain a distance of 20 cm between the microphone and the amplifier to avoid any feedback issues
    • Week-Long Battery - 2000 mAh battery supports 12-15 hours continuous teaching, 4000 mAh battery supports 25-30 hours continuous teaching. Full-day outdoor events without recharge anxiety. USB-C rechargeable
    • Simple and Practical, Teacher-Centric Design - Only 2 steps: 1.Turn on the amplifier; 2.Plug the microphone into the MIC port of the amplifier. Now, it's ready. Unlike buttons, the analog dial offers finer volume increments. Ultra-lightweight with clip-on belt strap teach hands-free
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    Overview
    Specs
    Reviews
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    Any questions? Our AI beta will help you find out quickly.

    Professional Amplifier for Teachers – Crystal Clear, All-Day Power

    S358

    Tired of straining your voice in large classrooms or outdoor settings? Our Teacher’s Portable Voice Amplifier delivers louder volume without distortion, ensuring every student hears you clearly—without shouting.

    white compact speaker or audio device shown on desk in classroom setting.

    Loud & Crystal Clear

    3-inch speakers plus a booster circuit assure loud and clear sound, helping students listen clearly and save the teacher's throat.

    Text reads: '>20cm/8

    Smart Anti-Squeal Tech

    Working well with minimal feedback with advanced frequency shifting technology. Keep the distance between the voice amplifier and the microphone at more than 20 cm to supress the eEar-Piercing Feedback

    voice amplifier for teacher

    Fine-tune volume with precise dial control

    The dial control allows for more subtle and precise volume adjustment. When worn on the body, the dial is more convenient for volume adjustment than the button type.

    Norwii Voice amplifier

    Swivel- adjustable Microphone

    You can adjust the angle of the microphone to position the microphone head as close to your mouth as possible to achieve the best amplification effect.

    Minimalist and Functional Design

    1

    Applicable scenarios

    Norwii Voice Amplifier

    Multi-color and What’s Included

    S358 amplifier

    Norwii Voice Amplifier

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/5916f2eb-1df3-4fb9-a64d-97927eb59352.__AC_SR200,225___.jpg

    S358 2000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/5971c885-9534-4fe1-808f-959e01fb07be.__AC_SR200,225___.jpg

    S358 2000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/5a2198fd-40d2-4ff5-9cd7-dee0ba6c1838.__AC_SR200,225___.jpg

    S358 2000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/b456b765-4480-44c9-b751-cbdfcfe47716.__AC_SR200,225___.jpg

    S358 4000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/ad18a2bd-93a3-490a-8c17-fbcf4da1d45f.__AC_SR200,225___.jpg

    S358 Pro Wireless 4000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/005def8e-5314-4867-b9fc-d92fb264c87c.__AC_SR200,225___.jpg

    S328 4000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/f9060bfb-b92c-4d93-acbc-fdbcba097be1.__AC_SR200,225___.jpg

    S368 1800mAh

    Customer Reviews
    Price
    Charge Time
    2-3 Hours 2-3 Hours 2-3 Hours 4-6 Hours 4-6 Hours 4-6 Hours 2-3 Hours
    Use Time
    12-15Hours 12-15Hours 12-15Hours 25-30 Hours 15-20Hours 35-38 Hours 22 Hours
    Microphone Style
    Wired Microphone Wired Microphone Wired Microphone Wired Microphone Wired + Wireless Microphone Wired Microphone Wired Microphone
    Battery Capacity
    2000mAh 2000mAh 2000mAh 4000mAh 4000mAh 4000mAh 1800mAh
    Bluetooth
    ? ? ? ? ? ? ?
    TF Card Port
    ? ? ? ? ? ? ?
    Recording function
    ? ? ? ? ? ? ?

    Professional Amplifier for Teachers – Crystal Clear, All-Day Power

    S358

    Tired of straining your voice in large classrooms or outdoor settings? Our Teacher’s Portable Voice Amplifier delivers louder volume without distortion, ensuring every student hears you clearly—without shouting.

    white compact speaker or audio device shown on desk in classroom setting.

    Loud & Crystal Clear

    3-inch speakers plus a booster circuit assure loud and clear sound, helping students listen clearly and save the teacher's throat.

    Text reads: '>20cm/8

    Smart Anti-Squeal Tech

    Working well with minimal feedback with advanced frequency shifting technology. Keep the distance between the voice amplifier and the microphone at more than 20 cm to supress the eEar-Piercing Feedback

    voice amplifier for teacher

    Fine-tune volume with precise dial control

    The dial control allows for more subtle and precise volume adjustment. When worn on the body, the dial is more convenient for volume adjustment than the button type.

    Norwii Voice amplifier

    Swivel- adjustable Microphone

    You can adjust the angle of the microphone to position the microphone head as close to your mouth as possible to achieve the best amplification effect.

    Minimalist and Functional Design

    Norwii Voice Amplifier

    Applicable scenarios

    S358

    Multi-color and What’s Included

    S358 amplifier

    Norwii Voice Amplifier

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/5916f2eb-1df3-4fb9-a64d-97927eb59352.__AC_SR200,225___.jpg

    S358 2000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/5971c885-9534-4fe1-808f-959e01fb07be.__AC_SR200,225___.jpg

    S358 2000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/5a2198fd-40d2-4ff5-9cd7-dee0ba6c1838.__AC_SR200,225___.jpg

    S358 2000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/b456b765-4480-44c9-b751-cbdfcfe47716.__AC_SR200,225___.jpg

    S358 4000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/ad18a2bd-93a3-490a-8c17-fbcf4da1d45f.__AC_SR200,225___.jpg

    S358 Pro Wireless 4000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/005def8e-5314-4867-b9fc-d92fb264c87c.__AC_SR200,225___.jpg

    S328 4000mAh

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/f9060bfb-b92c-4d93-acbc-fdbcba097be1.__AC_SR200,225___.jpg

    S368 1800mAh

    Customer Reviews
    Price
    Charge Time
    2-3 Hours 2-3 Hours 2-3 Hours 4-6 Hours 4-6 Hours 4-6 Hours 2-3 Hours
    Use Time
    12-15Hours 12-15Hours 12-15Hours 25-30 Hours 15-20Hours 35-38 Hours 22 Hours
    Microphone Style
    Wired Microphone Wired Microphone Wired Microphone Wired Microphone Wired + Wireless Microphone Wired Microphone Wired Microphone
    Battery Capacity
    2000mAh 2000mAh 2000mAh 4000mAh 4000mAh 4000mAh 1800mAh
    Bluetooth
    ? ? ? ? ? ? ?
    TF Card Port
    ? ? ? ? ? ? ?
    Recording function
    ? ? ? ? ? ? ?

    Product information

    Brand Norwii
    Item dimensions L x W x H 4 x 3.59 x 1.49 inches
    Connectivity Technology AUX, USB
    Color Black - 2000mAh
    Compatible Devices Headphone, Headset, Laptop, MP3 Player, Smartphone
    Mounting Type Portable
    Power Source Battery Powered
    Connector Type Aux, USB
    Material Acrylonitrile Butadiene Styrene (ABS), PC
    Item Weight 250 Grams
    Number of Channels 2
    Audio Input AUX, MIC, Bluetooth
    Recommended Uses For Product Accessibility Support, Emergency & Safety, Fitness & Group Activities, Outdoor & Hobby Use, Religious & Community Settings, Retail & Customer Service, Teaching & Training
    Manufacturer Shanghai Norwii Technology Co., LTd.
    Product Dimensions 4 x 3.59 x 1.49 inches
    Item model number S358
    Batteries 1 Nonstandard Battery batteries required.
    Date First Available September 17, 2020

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