--- product_id: 725682694 title: "Bluetooth Voice Amplifier for Teacher with Wired Microphone Headset | Portable Speaker and Microphone for Classroom & Outdoor, Teaching/Tour Guide/Training, USB-C Rechargeable Power Amplifiers" brand: "norwii" price: "฿4262" currency: THB in_stock: true category: "Norwii" url: https://www.desertcart.co.th/products/725682694-bluetooth-voice-amplifier-for-teacher-with-wired-microphone-headset-portable store_origin: TH region: Thailand --- # Anti-feedback wired mic 10W crystal-clear output Up to 30h battery life Bluetooth Voice Amplifier for Teacher with Wired Microphone Headset | Portable Speaker and Microphone for Classroom & Outdoor, Teaching/Tour Guide/Training, USB-C Rechargeable Power Amplifiers **Brand:** norwii **Price:** ฿4262 **Availability:** ✅ In Stock ## Summary > 🎙️ Own the room, never lose your voice! ## Quick Answers - **What is this?** Bluetooth Voice Amplifier for Teacher with Wired Microphone Headset | Portable Speaker and Microphone for Classroom & Outdoor, Teaching/Tour Guide/Training, USB-C Rechargeable Power Amplifiers by norwii - **How much does it cost?** ฿4262 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/725682694-bluetooth-voice-amplifier-for-teacher-with-wired-microphone-headset-portable) ## 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 crystal clear and professional. - • **Amplify Your Authority:** 10-watt output ensures your voice commands every corner of the room, making every word count. - • **Plug & Play Simplicity:** Two-step setup with wired headset mic means you’re ready to engage your audience in seconds. - • **Endurance Teaching Power:** Choose between 15 or 30 hours of uninterrupted voice projection—teach all day, all week without recharging. - • **Effortless, Hands-Free Control:** Ultra-lightweight with clip-on belt strap and analog volume dial for seamless, distraction-free teaching. ## 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, it delivers crystal-clear sound in classrooms, workshops, and outdoor events. Lightweight and easy to use with a clip-on strap and analog volume control, it’s engineered to keep your voice strong and your audience engaged 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 - 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 | B0DDSFJBZ7 | | Antenna Location | Accessibility Support, Emergency & Safety, Fitness & Group Activities, Outdoor & Hobby Use, Religious & Community Settings, Retail & Customer Service, Teaching & Training | | Audio Input | AUX | | Best Sellers Rank | #83,070 in Electronics ( See Top 100 in Electronics ) #130 in Headphone Amps | | Brand | Norwii | | Color | Rose Gold - 2000mAh | | Compatible Devices | Headset, Smartphone | | Connectivity Technology | AUX | | Connector Type | Aux, USB | | Customer Reviews | 3.9 3.9 out of 5 stars (79) | | 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 | 0.35 Pounds | | Manufacturer | Shanghai Norwii Technology Co., LTd. | | Mfr Part Number | S358 | | Model Number | S358 | | Mounting Type | Portable | | Number of Channels | 2 | | Number of Items | 1 | | Output Wattage | 10 Watts | | Power Source | Battery Powered | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Norwii - **Colour:** Rose Gold - 2000mAh - **Compatible devices:** Headset, Smartphone - **Connectivity technology:** AUX - **Item dimensions L x W x H:** 10.2 x 9.1 x 3.8 centimeters ## Images ![Bluetooth Voice Amplifier for Teacher with Wired Microphone Headset | Portable Speaker and Microphone for Classroom & Outdoor, Teaching/Tour Guide/Training, USB-C Rechargeable Power Amplifiers - Image 1](https://m.media-amazon.com/images/I/71vRNTkKupL.jpg) ## Available Options This product comes in different **Color** options. ## Frequently Bought Together - NORWII Mini Voice Amplifier Portable Rechargeable with Wired Microphone Headset & Waistband, Personal Voice Amplifier for Teachers, Presentation, Tour Guides, Meeting, Coaches, Rose Gold - Car Carplay Cable for iPhone 15 16 15 Pro Max 15 16 Plus Cable, USB A to USB C for Carplay USB C Cord, iPad USB C Cable iPad Pro iPad Air 5th 4th Mini 6th Gen Car Charger Cable Cord Replacement 3FT - Beats Studio Pro - Wireless Bluetooth Noise Cancelling Headphones - Personalized Spatial Audio, USB-C Lossless Audio, Apple & Android Compatibility, Up to 40 Hours Battery Life - Black --- ## 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.co.th/products/725682694-bluetooth-voice-amplifier-for-teacher-with-wired-microphone-headset-portable](https://www.desertcart.co.th/products/725682694-bluetooth-voice-amplifier-for-teacher-with-wired-microphone-headset-portable) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-08-23*