---
product_id: 514898252
title: "NORWII S358 Portable 4000mAH Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black) | ①10W Power Amplifiers②4000mAh Battery③30 Hours Working Time④USB-C Rechargeable⑤Adjustable Mic for Loudspeaker ⑥Anti-Howling"
brand: "norwii"
price: "107515CFA"
currency: XOF
in_stock: true
reviews_count: 5
category: "Norwii"
url: https://www.desertcart.sn/products/514898252-norwii-s358-portable-4000mah-rechargeable-voice-amplifier-with-wired-microphone
store_origin: SN
region: Senegal
---

# Up to 30 Hours Runtime 10W Power Amplifier 4000mAh Battery Capacity NORWII S358 Portable 4000mAH Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black) | ①10W Power Amplifiers②4000mAh Battery③30 Hours Working Time④USB-C Rechargeable⑤Adjustable Mic for Loudspeaker ⑥Anti-Howling

**Brand:** norwii
**Price:** 107515CFA
**Availability:** ✅ In Stock

## Summary

> 🎤 Own the room, not the noise.

## Quick Answers

- **What is this?** NORWII S358 Portable 4000mAH Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black) | ①10W Power Amplifiers②4000mAh Battery③30 Hours Working Time④USB-C Rechargeable⑤Adjustable Mic for Loudspeaker ⑥Anti-Howling by norwii
- **How much does it cost?** 107515CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/514898252-norwii-s358-portable-4000mah-rechargeable-voice-amplifier-with-wired-microphone)

## Best For

- norwii enthusiasts

## Why This Product

- Trusted norwii brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Anti-Howling Tech:** Advanced frequency shifting eliminates feedback, ensuring your voice stays smooth and professional.
- • **Marathon Battery Life:** 4000mAh rechargeable battery powers up to 30 hours—teach, guide, or lead all day without a recharge panic.
- • **Effortless Portability:** Lightweight design with clip-on waistband keeps you hands-free and mobile—perfect for dynamic professionals.
- • **Plug & Play Simplicity:** Two-step setup with analog volume dial means you’re ready to amplify your presence in seconds.
- • **Crystal Clear Projection:** 10W output delivers powerful, distortion-free sound that commands attention in any setting.

## Overview

The NORWII S358 is a sleek, portable voice amplifier designed for professionals who demand clear, powerful sound on the go. Featuring a robust 10W amplifier, a long-lasting 4000mAh battery supporting up to 30 hours of continuous use, and anti-howling technology, it ensures your voice is heard crisply without feedback. Its lightweight, clip-on design and simple plug-and-play operation make it an essential tool for teachers, tour guides, fitness instructors, and event leaders aiming to elevate their communication effortlessly.

## Description

Ideal for Classroom lectures, outdoor workshops, Gym training, Guided tours, Campus events. Designed for Educators, Trusted by Professionals: 4000mAh, up to 30 Hours Continuous Working Time 2000mAh, up to 15 Hours Continuous Working Time – Teach all week on a single charge Wired mic options with swivel- adjustable Microphone. Anti-feedback technology – No ear-piercing screeches near speakers

Review: Klein und praktisch - Eine praktische Lösung, wenn man vor lauterer Kulisse präsentieren muss.
Review: Substitute gym teacher approved :) - I use to be a Substitute gym teacher and this device is indeed ... loud. Works wonderfully inside the gym and classrooms. This device does win 5 stars BUT! My only complaint (or recommendation) is how the ON and OFF works on this device. It should be a button, not the way that it is. If they can fix that one day, this would be 10 out of 10. Still 5 stars overall.

## Features

- 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
- Anti-Howling Technology - The Voice Amplifier utilizes advanced frequency shifting technology to minimize feedback. Keep a distance of 20 cm between the microphone and the amplifier to avoid ear-piercing screeches
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B7RQPXNH |
| Antenna Location | Accessibility Support, Emergency & Safety, Fitness & Group Activities, Outdoor & Hobby Use, Religious & Community Settings, Retail & Customer Service, Teaching & Training |
| Audio Input | Wired Microphones |
| Best Sellers Rank | #23,268 in Musical Instruments ( See Top 100 in Musical Instruments ) #296 in PA Systems |
| Box Contents | 3.5 mm Audio Cable*1, Adjustable Waistband*1, User Manual*1, Wired Microphone Headset*1 |
| Brand | Norwii |
| Brand Name | Norwii |
| Colour | Black - 4000mAh |
| Compatible Devices | Headset, Smartphone |
| Connectivity Technology | USB |
| Connector Type | USB |
| Country of Origin | USA |
| Customer Reviews | 4.3 out of 5 stars 573 Reviews |
| Enclosure Material | Acrylonitrile Butadiene Styrene (ABS) PC |
| Item Dimensions | 10.2 x 9.1 x 3.8 Centimeters |
| Item Weight Unit of Measure | 0.3 Kilograms |
| Item dimensions L x W x H | 10.2 x 9.1 x 3.8 Centimeters |
| Manufacturer | Shanghai Norwii Technology Co., LTd. |
| Manufacturer Part Number | S358 |
| Model Number | S358 |
| Mounting Type | Portable |
| Network Connectivity Technology | USB |
| Number of Channels | 2 |
| Output Wattage | 10 Watts |
| Power Source | Battery Powered |

## Product Details

- **Brand:** Norwii
- **Item dimensions L x W x H:** 10.2 x 9.1 x 3.8 Centimeters
- **Connectivity Technology:** USB
- **Colour:** Black - 4000 mAh
- **Compatible Devices:** Headset, Smartphone

## Images

![NORWII S358 Portable 4000mAH Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black) | ①10W Power Amplifiers②4000mAh Battery③30 Hours Working Time④USB-C Rechargeable⑤Adjustable Mic for Loudspeaker ⑥Anti-Howling - Image 1](https://m.media-amazon.com/images/I/71xc9cIF-1L.jpg)
![NORWII S358 Portable 4000mAH Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black) | ①10W Power Amplifiers②4000mAh Battery③30 Hours Working Time④USB-C Rechargeable⑤Adjustable Mic for Loudspeaker ⑥Anti-Howling - Image 2](https://m.media-amazon.com/images/I/61F0s1w5exL.jpg)
![NORWII S358 Portable 4000mAH Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black) | ①10W Power Amplifiers②4000mAh Battery③30 Hours Working Time④USB-C Rechargeable⑤Adjustable Mic for Loudspeaker ⑥Anti-Howling - Image 3](https://m.media-amazon.com/images/I/71itVRJEv6L.jpg)
![NORWII S358 Portable 4000mAH Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black) | ①10W Power Amplifiers②4000mAh Battery③30 Hours Working Time④USB-C Rechargeable⑤Adjustable Mic for Loudspeaker ⑥Anti-Howling - Image 4](https://m.media-amazon.com/images/I/71IR+WoQFFL.jpg)
![NORWII S358 Portable 4000mAH Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black) | ①10W Power Amplifiers②4000mAh Battery③30 Hours Working Time④USB-C Rechargeable⑤Adjustable Mic for Loudspeaker ⑥Anti-Howling - Image 5](https://m.media-amazon.com/images/I/71tejDTuLGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Klein und praktisch
*by H***S on 28 December 2025*

Eine praktische Lösung, wenn man vor lauterer Kulisse präsentieren muss.

### ⭐⭐⭐⭐⭐ Substitute gym teacher approved :)
*by D***N on 2 April 2025*

I use to be a Substitute gym teacher and this device is indeed ... loud. Works wonderfully inside the gym and classrooms. This device does win 5 stars BUT! My only complaint (or recommendation) is how the ON and OFF works on this device. It should be a button, not the way that it is. If they can fix that one day, this would be 10 out of 10. Still 5 stars overall.

### ⭐⭐⭐⭐⭐ Speak without forcing (Vocal cords) Better communicating tasks after radiation treatments.
*by C***A on 12 September 2025*

Greetings Anyone who is on a journey with Throat Cancer! After radiation therapy and healing , your voice control is very quiet. This Voice enhancer is very portable and provides speech sound and quality with the patient. After oncologist visit , the speech therapist covered this option for voice therapy. Regards

## Frequently Bought Together

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-08-08*