---
product_id: 467947286
title: "Bluetooth Voice Amplifier, Power Amplifiers, Portable Mini Wired Microphone Headset for Teacher Classroom & Outdoor Lectures, Teaching, Tour Guides, USB-C Rechargeable - 4000mAh, Black"
brand: "norwii"
price: "581 kr"
currency: DKK
in_stock: true
reviews_count: 5
category: "Norwii"
url: https://www.desertcart.dk/products/467947286-bluetooth-voice-amplifier-power-amplifiers-portable-mini-wired-microphone-headset
store_origin: DK
region: Denmark
---

# wired swivel mic, anti-feedback 10W crystal-clear output 4000mAh up to 30h runtime Bluetooth Voice Amplifier, Power Amplifiers, Portable Mini Wired Microphone Headset for Teacher Classroom & Outdoor Lectures, Teaching, Tour Guides, USB-C Rechargeable - 4000mAh, Black

**Brand:** norwii
**Price:** 581 kr
**Availability:** ✅ In Stock

## Summary

> 🎤 Own the room, every time — crystal-clear voice, all day long!

## Quick Answers

- **What is this?** Bluetooth Voice Amplifier, Power Amplifiers, Portable Mini Wired Microphone Headset for Teacher Classroom & Outdoor Lectures, Teaching, Tour Guides, USB-C Rechargeable - 4000mAh, Black by norwii
- **How much does it cost?** 581 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/467947286-bluetooth-voice-amplifier-power-amplifiers-portable-mini-wired-microphone-headset)

## 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

- • **Feedback-Free Focus:** Advanced frequency shifting tech eliminates ear-piercing feedback, keeping your message sharp and professional.
- • **Amplify Your Authority:** 10-watt power delivers clear, room-filling sound so every word commands attention.
- • **Plug & Play Simplicity:** Two-step setup with wired mic means you’re ready to engage your audience in seconds—no tech headaches.
- • **Endurance for the Long Haul:** 4000mAh battery fuels up to 30 hours of uninterrupted teaching or guiding—no mid-day recharge panic.
- • **Effortless, Hands-Free Control:** Ultra-lightweight with clip-on belt strap and analog volume dial for precise, distraction-free adjustments.

## Overview

The Norwii Bluetooth Voice Amplifier is a portable, professional-grade PA system designed for educators and presenters. Featuring a powerful 10W output, anti-feedback technology, and a robust 4000mAh battery offering up to 30 hours of continuous use, it ensures your voice carries clearly in classrooms, outdoor events, and tours. Lightweight and easy to operate with a wired swivel microphone and clip-on design, it’s the ultimate tool to keep your audience engaged without strain or interruption.

## 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: Works perfectly. I has helped with my student to make them listen and pay better attention. Good battery and volume
Review: Låg ljudkvalitet och det blir lätt missljud om man höjer volymen. ( Man får vad man betalar för!)

## 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
- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B7RQPXNH |
| Audio input | Wired Microphones |
| Connector type | Aux |
| Item model number | S358 |
| Item weight | 0.3 Kilograms |
| Manufacturer | Norwii |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Mounting type | Table top, wall mount |
| Number of channels | 2 |
| Power source | Battery Powered |
| Product Dimensions | 10.16 x 9.12 x 3.78 cm; 300 g |
| Recommended uses for product | Accessibility Support, Emergency & Safety, Fitness & Group Activities, Outdoor & Hobby Use, Religious & Community Settings, Retail & Customer Service, Teaching & Training |

## Product Details

- **Brand:** Norwii
- **Colour:** Black - 4000mAh
- **Compatible devices:** Headset, Laptop
- **Connectivity technology:** USB
- **Item dimensions L x W x H:** 10.2 x 9.1 x 3.8 centimeters

## Images

![Bluetooth Voice Amplifier, Power Amplifiers, Portable Mini Wired Microphone Headset for Teacher Classroom & Outdoor Lectures, Teaching, Tour Guides, USB-C Rechargeable - 4000mAh, Black - Image 1](https://m.media-amazon.com/images/I/71At6JvmZEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by O***R on 23 December 2025*

Works perfectly. I has helped with my student to make them listen and pay better attention. Good battery and volume

### ⭐⭐ Review
*by L***M on 23 January 2025*

Låg ljudkvalitet och det blir lätt missljud om man höjer volymen. ( Man får vad man betalar för!)

### ⭐⭐⭐⭐⭐ Review
*by A***E on 12 April 2025*

I purchased the NORWII S358 Voice Amplifier for my dad, who wanted to use it for evangelism back home in Nigeria. He also planned to share it with fellow brethren for outreach activities. After using it, he shared some positive impressions that really show the value of this product. Here’s what he had to say: Purposeful and Effective: The amplifier served its intended purpose perfectly. Whether speaking to a small group or a larger outdoor gathering, it ensured his voice was heard clearly without the need to strain. Lightweight and Portable: One of the highlights is how light and easy it is to carry. The included waistband makes it even more convenient, especially when moving around during preaching or group activities. Impressive Sound Quality: According to him, the sound is crisp and clear. The microphone picks up the voice well and delivers it with minimal distortion, which is crucial for effective communication in a noisy or open environment. Good Battery Life: With its 2000mAH rechargeable battery, the amplifier lasted for several sessions without needing a recharge. That’s a big plus for areas with limited access to constant power. Strong Amplification: The volume is more than sufficient for most outdoor settings. The amplifier projects sound well, making it ideal for street preaching, teaching, or leading group discussions. Overall Verdict: The NORWII S358 is a practical, budget-friendly solution for anyone needing a reliable voice amplifier—whether for teaching, tours, or ministry. It checked all the right boxes for my dad, and I’d definitely recommend it to others looking for a portable and efficient amplification system.

## Frequently Bought Together

- NORWII S358 Portable 4000mAh Rechargeable Voice Amplifier with Wired Microphone Headset & Waistband, Personal Microphone and Speaker for Teachers Tour Guides ect. (Black)
- Akingdleo 2 pcs Portable Lapel mic 3.5mm Audio Compatible with Voice Amplifiers S6

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-04-29*