--- product_id: 71794684 title: "Voice Amplifier for Teachers Portable Microphone and Speaker | Personal Wired Microphone Headset and Speaker, Mini Pa System for Tour Guides Coaches Classroom Yoga Fitness Instructors" brand: "shidu" price: "Β₯12742" currency: JPY in_stock: true reviews_count: 13 category: "Shidu" url: https://www.desertcart.jp/products/71794684-voice-amplifier-for-teachers-portable-microphone-and-speaker-personal-wired store_origin: JP region: Japan --- # AUX & USB playback 10W crystal-clear output 12h battery life Voice Amplifier for Teachers Portable Microphone and Speaker | Personal Wired Microphone Headset and Speaker, Mini Pa System for Tour Guides Coaches Classroom Yoga Fitness Instructors **Brand:** shidu **Price:** Β₯12742 **Availability:** βœ… In Stock ## Summary > 🎀 Own the room, wherever you teach or lead! ## Quick Answers - **What is this?** Voice Amplifier for Teachers Portable Microphone and Speaker | Personal Wired Microphone Headset and Speaker, Mini Pa System for Tour Guides Coaches Classroom Yoga Fitness Instructors by shidu - **How much does it cost?** Β₯12742 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/71794684-voice-amplifier-for-teachers-portable-microphone-and-speaker-personal-wired) ## Best For - shidu enthusiasts ## Why This Product - Trusted shidu brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **All-Day Endurance:** Stay heard through long sessions with a robust 1800mAh battery delivering up to 12 hours of continuous amplification. - β€’ **Powerful Projection:** Amplify your voice effortlessly to reach up to 120 people or cover 11,800 sq.ft with pristine, noise-free sound. - β€’ **Versatile Audio Hub:** Seamlessly switch between microphone input, TF card, USB flash drive, or AUX for ultimate multimedia flexibility. - β€’ **Ultra-Portable Design:** Lightweight at just 0.36 lbs with a detachable clip and wearable waistband for hands-free mobility anywhere you go. - β€’ **Built to Last & Support:** Crafted from durable materials with a stylish rose-gold finish, backed by 36-month warranty and lifetime tech support. ## Overview The SHIDU Voice Amplifier SD-258 is a compact, portable PA system designed for professionals who need powerful, clear voice amplification in large spaces. With 10W output, 12-hour battery life, and multi-source audio support including AUX, USB, and TF card, it’s perfect for teachers, coaches, and tour guides seeking effortless sound projection and mobility. Durable, stylish, and backed by extensive warranty and support, it ensures you’re heard loud and clear without strain. ## Description Buy SHIDU Voice Amplifier for Teachers Portable Microphone and Speaker | Personal Wired Microphone Headset and Speaker, Mini Pa System for Tour Guides Coaches Classroom Yoga Fitness Instructors: Power Amplifiers - desertcart.com βœ“ FREE DELIVERY possible on eligible purchases Review: Works MUCH better than I expected! - Purchased for a Trade Show event I was going to be working. I didn’t want a whole PA system since that is excessive and the booth space didn’t have much storage to hide a huge speaker. So I purchased this to save time and space! And it works like a charm. Had it on my hip, it was impressively loud, amplified my voice perfectly! Nobody had any issues hearing me that I know of, everybody was actually asking where I got it! It traveled with me to from FL to NV with no issues! I would recommend this to anyone looking to have a quick easy way to be heard in a large/semi-loud room or area! Review: Great for classrooms - Excellent amplifier! Easy to set up and amplifies your voice significantly for use in a classroom environment ## Features - 【 Powerful&Original Sound 】 The SD-258 voice amplifier is in compact size, but with output crystal sound and no noise is loud enough to cover a room with a large group of 120 people. The stable performance is perfect for amplifying your sound and saving your throat. - 【 Wide Coverage Area 】 SHIDU voice amplifier amplifies sound clear, no noise, no whistling, no distortion. It can effectively amplify your voice and save your throat. Output power of 10W can cover 11800 sq.ft (1100 ㎑) of sound, able to fill a large room. - 【 Long Battery life and Multifunctional 】 The voice amplifier with a 1800mAh built-in big rechargeable lithium battery provides 12 hours amplify time and 10 hours music time with a full charge. It takes only 3-5 hours to fully charge. 10W output power. Supports TF (Micro SD) card playback and USB flash drive playback. Repeat individual songs, loop all music and switch songs. - 【 More Function 】The microphone port of the amplifier can be used as an AUX port, supports AUX audio input, and can be used as a wired speaker by connecting it to your cell phone or computer with a 3.5mm AUX cable. - 【 Compact and Easy Carry Around 】 The portable microphone and speaker is in compact size and super lightweight (only 0.36 lbs), you can use the back detachable clip to fix it on your belt or pocket, or you can also tie it around your waist or hang it on your neck with the help of the waistband. - 【 Widely Used 】 Made of wear-resistant material, not easy to break, fashionable shape and appearance. Great for teaching, training, tour guide, coach, shopping mall, speech, outdoor, singing, etc. - 【 Warm Tips and Guarantee 】 Please keep the speaker and mic for a distance and facing away each other to avoid the signal affected. Worry -Free Warranty. We provide return and refund without reason in 30 days, and 36-month warranty, and lifetime technical support. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07FLZPVG4 | | Antenna Location | Voice Amplifier for Teachers | | Audio Input | AUX | | Best Sellers Rank | #320 in Musical Instruments ( See Top 100 in Musical Instruments ) #3 in Power Amplifiers #155 in Portable Audio & Video | | Brand | SHIDU | | Color | Rose-Gold | | Compatible Devices | Guitar, Headset | | Connectivity Technology | AUX, USB | | Connector Type | Aux, USB | | Customer Reviews | 4.3 out of 5 stars 4,131 Reviews | | Enclosure Material | Plastic | | Included Components | Voice Amplifier | | Item Dimensions | 4.13 x 1.57 x 3.35 inches | | Item Weight | 330 g | | Item dimensions L x W x H | 4.13 x 1.57 x 3.35 inches | | Mfr Part Number | S258 | | Model Number | S258 | | Mounting Type | Tabletop | | Number of Channels | 1 | | Output Wattage | 10 watts | | Power Source | Battery Powered | | UPC | 759675088348 | | Unit Count | 1 Count | | Warranty Description | 2 | ## Product Details - **Brand:** SHIDU - **Color:** Rose-Gold - **Compatible Devices:** Guitar, Headset - **Connectivity Technology:** AUX, USB - **Item dimensions L x W x H:** 4.13 x 1.57 x 3.35 inches ## Images ![Voice Amplifier for Teachers Portable Microphone and Speaker | Personal Wired Microphone Headset and Speaker, Mini Pa System for Tour Guides Coaches Classroom Yoga Fitness Instructors - Image 1](https://m.media-amazon.com/images/I/711AHMwDdbL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: How long does the battery last on a single charge?** A: It provides up to 12 hours of continuous amplification on a single charge. It is designed to reliably last through a full school day or a long tour without needing to recharge, giving you peace of mind during your busy schedule. **Q: Will there be any feedback or howling noise when using the microphone?** A: Our voice amplifier is engineered with advanced anti-whistling technology to minimize feedback. To ensure the performance, simply keep the microphone at a reasonable distance from the speaker and avoid pointing the mic directly at the speaker unit. **Q: How many people can this amplifier cover? Is it loud enough for a large room?** A: With a powerful 10W output, this device can effectively cover up to 11,800 sq.ft, making it loud enough to be clearly heard by groups of up to 120 people. It is perfect for filling large classrooms, small halls, or outdoor tour settings. **Q: Is it comfortable to wear all day for teaching or guiding tours?** A: Yes, it is ultra-lightweight at only 0.36 lbs. It comes with a detachable back clip and an adjustable waistband, allowing you to wear it comfortably on your belt, pocket, or over your shoulder for hours without feeling fatigued. **Q: Is the setup complicated, or does it pair automatically?** A: It is extremely easy to use. The wired microphone headset is "plug-and-play," meaning there is no complicated pairing process required. You simply plug it in, turn it on, and you are ready to speak immediately. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works MUCH better than I expected! *by V***Z on January 4, 2025* Purchased for a Trade Show event I was going to be working. I didn’t want a whole PA system since that is excessive and the booth space didn’t have much storage to hide a huge speaker. So I purchased this to save time and space! And it works like a charm. Had it on my hip, it was impressively loud, amplified my voice perfectly! Nobody had any issues hearing me that I know of, everybody was actually asking where I got it! It traveled with me to from FL to NV with no issues! I would recommend this to anyone looking to have a quick easy way to be heard in a large/semi-loud room or area! ### ⭐⭐⭐⭐⭐ Great for classrooms *by E***O on February 16, 2026* Excellent amplifier! Easy to set up and amplifies your voice significantly for use in a classroom environment ### ⭐⭐⭐⭐ Perfect for those who are still masking *by G***S on September 9, 2022* Due to age and health I still wear masks. It is hard for people to hear me when I speak and I get hoarse from trying to shout for extended periods. Enter this terrific headset mike and amplifier. It charges easily, can be hung around waist or neck, and has great sound amplification. My family was bowled over--they commented, "This is a 1000 times better than trying to make out what you say" or "I was doing the dishes with running water and I could hear you perfectly without straining or having to turn the water off." I can't comment on how long the battery lasts as I've only used up to 2 1/2 hours, so I'll add that later. It is a game changer for church, being in a car, going out into crowded venues anywhere as much as it is great even with 1 or 2 people inside. WONDERFUL product! Wish I'd known about it 2 years ago! ## Frequently Bought Together - SHIDU Voice Amplifier Teachers,Megaphone Speaker Portable PA System with Microphone Headset(Work of 12hours) Supports MP3 Format Audio for Tour Guides Coaches Yoga Fitness Instructors - VOVIGGOL 2Pcs Microphone Headset Mic, Flexible Wired Boom for Voice Amplifier, 3.5mm Connector Jack Headset Microphone for Singing, Speaking, Teachers, Coaches, Presentations, Seniors and More --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/71794684-voice-amplifier-for-teachers-portable-microphone-and-speaker-personal-wired](https://www.desertcart.jp/products/71794684-voice-amplifier-for-teachers-portable-microphone-and-speaker-personal-wired) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-01*