--- product_id: 467947286 title: "Norwii Voice Amplifiers for Teacher with Headset Microphone and Speaker" brand: "knorvay" price: "Rp1792947" currency: IDR in_stock: true category: "Knorvay" url: https://www.desertcart.id/products/467947286-norwii-voice-amplifiers-for-teacher-with-headset-microphone-and-speaker store_origin: ID region: Indonesia --- # Anti-feedback wired mic 10W crystal-clear output Up to 30h battery life Norwii Voice Amplifiers for Teacher with Headset Microphone and Speaker **Brand:** knorvay **Price:** Rp1792947 **Availability:** ✅ In Stock ## Summary > 🎙️ Own the room, every time you speak. ## Quick Answers - **What is this?** Norwii Voice Amplifiers for Teacher with Headset Microphone and Speaker by knorvay - **How much does it cost?** Rp1792947 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/467947286-norwii-voice-amplifiers-for-teacher-with-headset-microphone-and-speaker) ## Best For - knorvay enthusiasts ## Why This Product - Trusted knorvay 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, letting your message shine without distractions. - • **Amplify Your Authority:** 10-watt power projects your voice clearly across any room or outdoor space, ensuring every word commands attention. - • **Plug & Play Simplicity:** Two-step setup—power on and plug in the mic—so you can focus on engaging your audience, not tech headaches. - • **Endurance That Keeps Up:** Choose between 15 or 30 hours of continuous use with high-capacity batteries—teach all day or week without a recharge panic. - • **Effortless, Hands-Free Control:** Ultra-lightweight design with clip-on belt strap and analog volume dial means you stay mobile and in command, no fumbling required. ## Overview The Norwii Bluetooth Voice Amplifier is a professional-grade, portable PA system designed for educators and presenters. Featuring a powerful 10W output, anti-feedback wired microphone, and up to 30 hours of battery life with USB-C charging, it delivers crystal-clear sound in classrooms, workshops, and outdoor events. Lightweight with a clip-on strap and simple two-step operation, it’s engineered to keep you heard and hands-free all day long. ## 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 ## 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 - Long-Lasting Battery - Choose between the 2000 mAh and 4000 mAh battery options to match your usage needs. Both provide dependable power for teaching, presentations, and outdoor activities, reducing the need for frequent recharging. USB-C rechargeable for quick and convenient charging. Charging cable is not included - 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 | | Brand | KNORVAY | | Color | Black - 4000mAh | | Compatible Devices | Headset, Laptop | | Connectivity Technology | USB | | Connector Type | Aux | | Customer Reviews | 5.0 5.0 out of 5 stars (1) | | Enclosure Material | Acrylonitrile Butadiene Styrene (ABS) | | 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 centimeters | | Item Weight | 0.3 Kilograms | | Manufacturer | Norwii | | Mfr Part Number | S358 | | Model Number | S358 | | Mounting Type | Table top, wall mount | | Number of Channels | 2 | | Number of Items | 1 | | Output Wattage | 10 Watts | | Power Source | Battery Powered | ## Product Details - **Brand:** KNORVAY - **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 ![Norwii Voice Amplifiers for Teacher with Headset Microphone and Speaker - Image 1](https://m.media-amazon.com/images/I/71xc9cIF-1L.jpg) ## 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.id/products/467947286-norwii-voice-amplifiers-for-teacher-with-headset-microphone-and-speaker](https://www.desertcart.id/products/467947286-norwii-voice-amplifiers-for-teacher-with-headset-microphone-and-speaker) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-10-22*