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-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
 S358 2000mAh |  S358 2000mAh |  S358 2000mAh |  S358 4000mAh |  S358 Pro Wireless 4000mAh |  S328 4000mAh |  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
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-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
S358 2000mAh | S358 2000mAh | S358 2000mAh | S358 4000mAh | S358 Pro Wireless 4000mAh | S328 4000mAh | 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 | ||||||
| ? | ? | ? | ? | ? | ? | ? |
Our mission is to provide our customers with high-quality products and comfortable purchasing experience and services
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