--- product_id: 380362914 title: "S358 Portable Voice Amplifier, Wired Microphone Headset for Teachers | 10W Power Amplifiers, 2000mAh Battery, 15 Hours Working Time, Adjustable Mic Loudspeaker, Anti-Howling, USB-C Rechargeable" brand: "norwii" price: "$71.17" currency: USD in_stock: true reviews_count: 13 category: "Norwii" url: https://www.desertcart.us/products/380362914-s358-portable-voice-amplifier-wired-microphone-headset-for-teachers-10w store_origin: US region: United States of America --- # Advanced feedback suppression 10W output power 2000mAh battery, 12-15h use S358 Portable Voice Amplifier, Wired Microphone Headset for Teachers | 10W Power Amplifiers, 2000mAh Battery, 15 Hours Working Time, Adjustable Mic Loudspeaker, Anti-Howling, USB-C Rechargeable **Brand:** norwii **Price:** $71.17 **Availability:** ✅ In Stock ## Summary > 🎙️ Speak Up, Stand Out — Your Voice, Supercharged! ## Quick Answers - **What is this?** S358 Portable Voice Amplifier, Wired Microphone Headset for Teachers | 10W Power Amplifiers, 2000mAh Battery, 15 Hours Working Time, Adjustable Mic Loudspeaker, Anti-Howling, USB-C Rechargeable by norwii - **How much does it cost?** $71.17 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/380362914-s358-portable-voice-amplifier-wired-microphone-headset-for-teachers-10w) ## 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? Not Here.:** Smart frequency shifting tech eliminates ear-piercing feedback for professional clarity. - • **Endurance That Keeps Up With You:** Long-lasting 2000mAh battery delivers up to 15 hours of uninterrupted teaching or events. - • **Lightweight & Hands-Free Freedom:** Ultra-light 159g design with clip-on waistband lets you move and teach without limits. - • **Effortless Control, Perfect Volume:** Analog dial offers precise volume adjustments—no fumbling, just smooth sound. - • **Amplify Your Voice, Save Your Throat:** Crystal-clear 10W sound projection ensures every word reaches your audience without strain. ## Overview The Norwii S358 Portable Voice Amplifier is a sleek, lightweight 10-watt PA system designed for teachers and professionals who demand clear, powerful sound without vocal strain. Featuring advanced feedback suppression, a 2000mAh battery for up to 15 hours of continuous use, and an intuitive analog volume dial, it’s built for all-day comfort and effortless control. Perfect for classrooms, outdoor events, and group activities, this amplifier ensures your message is heard loud and clear—anywhere, anytime. ## Description 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-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. Multi-color and What’s Included NORWII Original Voice Amplifier Wired 10W Wireless 15W Wired 6W Microphone Wired*1 Wired *1+ Wireless *1 Battery Capacity 2000mAh 5200mAh 1800mAh Using Time 12-15 Hours 10-12 Hours 22 Hours Size/Weight 9.11x10.15x3.78cm/159.5g 9.11x10.15x3.78cm/205.5g 7.2x9.7x2.7cm/125g Find Your Perfect Match Indoor use, covers up to 186 m² for 50–200 people Indoor & outdoor use, covers up to 930 m² for 250-1000 people Indoor use, covers up to 93 m² for 25-100 people Applicable scenarios Review: Light weight and served it purpose so well - 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. Review: Saved my voice :) - I have used it for five events and it works as advertised. The quality is okay and for the money I paid, I can't complain. The microphone does have to be positioned correctly for the best results. ## 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 | B08GB9JPVH | | Antenna Location | Accessibility Support, Fitness & Group Activities, Religious & Community Settings, Retail & Customer Service, Teaching & Training | | Audio Input | AUX, MIC | | Best Sellers Rank | 293 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 2 in PA Power-Amplifiers | | Brand | Norwii | | Brand Name | Norwii | | Colour | Black - 2000mAh | | Compatible Devices | Headphone, Headset, Laptop, MP3 Player, Smartphone | | Compatible devices | Headphone, Headset, Laptop, MP3 Player, Smartphone | | Connectivity technology | AUX , USB | | Connector Type | Aux, USB | | Country of Origin | China | | Customer Reviews | 4.3 out of 5 stars 2,013 Reviews | | Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), PC | | Included Components | 3.5 mm Audio Cable*1, Adjustable Waistband*1, User Manual*1, Wired Microphone Headset*1 | | Item Dimensions | 10.2 x 9.1 x 3.8 centimetres | | Item Weight | 159 g | | Item dimensions L x W x H | 10.2 x 9.1 x 3.8 centimetres | | Manufacturer | Shanghai Norwii Technology Co., LTd. | | Manufacturer Part Number | 358 | | Model Number | S358 | | Mounting Type | Portable | | Mounting type | Portable | | Network Connectivity Technology | AUX, USB | | Number of Channels | 2 | | Number of Items | 1 | | Output Wattage | 10 Watts | | Power Source | Battery Powered | | Product Warranty | 1 Year Limited Hardware Warranty | ## Product Details - **Brand:** Norwii - **Colour:** Black - 2000mAh - **Compatible devices:** Headphone, Headset, Laptop, MP3 Player, Smartphone - **Connectivity technology:** AUX, USB - **Item dimensions L x W x H:** 10.2 x 9.1 x 3.8 centimetres ## Images ![S358 Portable Voice Amplifier, Wired Microphone Headset for Teachers | 10W Power Amplifiers, 2000mAh Battery, 15 Hours Working Time, Adjustable Mic Loudspeaker, Anti-Howling, USB-C Rechargeable - Image 1](https://m.media-amazon.com/images/I/71xc9cIF-1L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Can you play music and use the microphone at the same time?** A: Yes. It supports. The voice amplifier has 2 jacks, which can be inserted separately to realize their functions. **Q: How do i charge the battery** A: No battery. It comes with a mains charger. **Q: What type of microphone jack is used (trs, trrs - ctla, omtp)?** A: TRS 3.5mm. **Q: Can it be used with a Lapel microphone** A: This Norwii S358 . voice.amplifier works with wired microphone, it is not wireless for lapel microphone. I am sure someone else will correct me!!! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Light weight and served it purpose so well *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. ### ⭐⭐⭐⭐⭐ Saved my voice :) *by P***B on 28 November 2025* I have used it for five events and it works as advertised. The quality is okay and for the money I paid, I can't complain. The microphone does have to be positioned correctly for the best results. ### ⭐⭐⭐⭐ Saves your voice *by C***Y on 31 May 2025* As a school teacher who has lost her voice twice this year, this has been great. It is loud enough for a primary classroom and a PE hall. A colleague had a much cheaper one, and wasn’t as good. ## Frequently Bought Together - NORWII Voice Amplifier Wired Mini Portable Rechargeable with Personal Wired Microphone for Teachers, Classroom, Presentation, Tour Guides, Meeting, Coaches. Black - ZOWEETEK ZW-Z258 Portable Rechargeable Mini Voice Amplifier for Teachers with Wired Microphone Headset and Waistband,Supports MP3 Format Audio for Speech, Class, Training,Tour Guide,Power Amplifiers - WinBridge Wireless Voice Amplifier for Teachers with Bluetooth Headset Microphone and Waistand, Bluetooth Voice Amplifier, Portable Meagaphone Speaker Mic, Back to Shool Supplies, 15W|1500mAh WB002 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/380362914-s358-portable-voice-amplifier-wired-microphone-headset-for-teachers-10w](https://www.desertcart.us/products/380362914-s358-portable-voice-amplifier-wired-microphone-headset-for-teachers-10w) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-08-14*