--- product_id: 492122334 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: "€ 71.61" currency: EUR in_stock: true reviews_count: 13 category: "Norwii" url: https://www.desertcart.pt/products/492122334-bluetooth-voice-amplifier-power-amplifiers-portable-mini-wired-microphone-headset store_origin: PT region: Portugal --- # wired headset mic with anti-howling 10W crystal-clear output 4000mAh ultra-long battery 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:** € 71.61 **Availability:** ✅ In Stock ## Summary > 🎙️ Speak Up, Stand Out — Make Every Word Count! ## 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?** € 71.61 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/492122334-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 Clarity:** Advanced anti-howling tech ensures your message is heard, not screeches or feedback. - • **Effortless, Hands-Free Teaching:** Lightweight design with clip-on belt strap and simple 2-step setup keeps you mobile and focused on your audience. - • **Endurance That Keeps Up With You:** Massive 4000mAh USB-C rechargeable battery powers up to 30 hours of continuous use—no mid-day recharge panic. - • **Amplify Your Voice, Amplify Your Impact:** 10-watt power delivers clear sound that reaches every corner of your classroom or outdoor event. - • **Pro-Grade Sound Quality in a Mini Package:** 3-inch speakers with booster circuit deliver crisp, throat-saving audio trusted by educators and pros alike. ## Overview The Norwii Bluetooth Voice Amplifier is a compact, professional-grade portable PA system designed for teachers, tour guides, and outdoor speakers. Featuring a powerful 10W output, anti-howling technology, and a robust 4000mAh USB-C rechargeable battery offering up to 30 hours of continuous use, it ensures crystal-clear sound without feedback. Its lightweight, clip-on design and wired headset microphone make it the ultimate hands-free voice amplification solution for dynamic, on-the-go presentations. ## Description Buy Norwii Bluetooth Voice Amplifier, Power Amplifiers, Portable Mini Wired Microphone Headset for Teacher classroom & Outdoor Lectures, Teaching, Tour Guides, USB-C Rechargeable - 4000mAh, Black. Free delivery and returns on eligible orders. 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: Good - Nice product ## 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 | | Audio input | Wired Microphones | | Batteries | 2 Nonstandard Battery batteries required. (included) | | Best Sellers Rank | 650 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 1 in PA Power-Amplifiers | | Connector type | Aux, USB | | Customer Reviews | 4.3 4.3 out of 5 stars (2,981) | | Date First Available | 9 Aug. 2022 | | Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. | | Item Weight | 300 g | | Item model number | S358 | | Item weight | 0.3 Kilograms | | Manufacturer | Shanghai Norwii Technology Co., LTd. | | Material | Acrylonitrile Butadiene Styrene (ABS), PC | | Material Type | Acrylonitrile Butadiene Styrene (ABS), PC | | Mounting type | Portable | | Number of channels | 2 | | Output Wattage | 10 Watts | | 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 | | Size | 4000 mAh | ## Product Details - **Brand:** Norwii - **Colour:** Black - 4000mAh - **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 ![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 ### ⭐⭐⭐⭐⭐ 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. ### ⭐⭐⭐⭐ Good *by F***M on 25 May 2025* Nice product ### ⭐⭐⭐⭐⭐ Worth buying *by J***K on 23 January 2026* Good value and a very helpful tool ## 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 --- ## 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.pt/products/492122334-bluetooth-voice-amplifier-power-amplifiers-portable-mini-wired-microphone-headset](https://www.desertcart.pt/products/492122334-bluetooth-voice-amplifier-power-amplifiers-portable-mini-wired-microphone-headset) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-05-13*