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Product description
Professional Amplifier for Teachers – Crystal Clear, All-Day Power 
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.
Loud & Crystal Clear
3.5-inch speakers plus a booster circuit assure loud and clear sound, helping students listen clearly and save the teacher’s throat.
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
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.
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 
Applicable scenarios 
Multi-color and What’s Included 
Norwii Voice Amplifier
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Customer Reviews
4.4 out of 5 stars 2,672
4.4 out of 5 stars 2,672
4.4 out of 5 stars 2,672
4.4 out of 5 stars 2,672
4.5 out of 5 stars 147
4.2 out of 5 stars 120
4.3 out of 5 stars 291
Price
$21.24$21.24
$27.99$27.99
$20.36$20.36
$32.99$32.99
$35.99$35.99
$19.99$19.99
$21.99$21.99
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
✘
✘
✘
✘
✔
✔
✘
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
Customers say
Customers find the voice amplifier works effectively in large open spaces and is easy to use, with good value for money. The device stays charged for several hours, and one customer mentions it works great for church services. The loudness and sound quality receive mixed feedback – while some say they can hear clearly, others find it not super loud and somewhat distorted. Durability is also mixed, with some customers reporting it lasts all school year while others say it broke after a few months.
Reviews
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