--- product_id: 71340840 title: "Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors" brand: "hw haoworks" price: "¥2986" currency: JPY in_stock: false reviews_count: 13 url: https://www.desertcart.jp/products/71340840-wireless-voice-amplifier-bluetooth-teacher-microphone-18w-waterproof-portable-voice store_origin: JP region: Japan --- # 50ft stable UHF wireless range 18W powerful output 10-12h speaker battery life Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors **Brand:** hw haoworks **Price:** ¥2986 **Availability:** ❌ Out of Stock ## Summary > 🎤 Own the room, wire-free and worry-free! ## Quick Answers - **What is this?** Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors by hw haoworks - **How much does it cost?** ¥2986 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/71340840-wireless-voice-amplifier-bluetooth-teacher-microphone-18w-waterproof-portable-voice) ## Best For - hw haoworks enthusiasts ## Why This Product - Trusted hw haoworks brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Endurance Mode:** Rechargeable batteries power the speaker for up to 12 hours and the wireless mic for 3-5 hours—stay amplified all day. - • **Freedom to Move:** UHF wireless tech ensures stable 50ft range with minimal interference—ditch the wires and roam freely. - • **Built for Action:** Waterproof, dustproof, and drop-resistant ABS+TPU casing with lightweight design and adjustable waistband clip. - • **All-in-One Versatility:** Bluetooth, AUX, USB, and TF card support lets you amplify voice and stream music simultaneously. - • **Crystal-Clear Projection:** 18W output delivers loud, distortion-free sound for groups up to 65 people. ## Overview The M800 Wireless Voice Amplifier is a rugged, portable 18W Bluetooth-enabled PA system featuring a UHF wireless headset mic with a 50ft range. Designed for teachers, presenters, and outdoor enthusiasts, it supports multiple audio inputs, offers up to 12 hours of speaker battery life, and combines waterproof durability with versatile wearing options for seamless voice amplification anywhere. ## Description Buy Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors: Power Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Easy to set up and use - I am a teacher and just used this product with my class. It was very easy to set up, charge, and get it started. I like that the speaker has a clip or a strap so it doesn’t matter what type of outfit I’m wearing that day. The microphone is lightweight and convenient. The sound level and the quality was not bad. I have not been able to test the battery life yet, but I’m hoping it would last all day before needing a charge. Overall, the sound quality was loud and clear enough for my students to hear. Next step: test it outdoors!! Review: UHF wireless headset, Loud speaker, Good for classroom - We just bought this PA system less than 2 weeks with Wireless UHF headset to replace existing inexpensive wired PA system. My wife primary use it in the class room. Per her opinion, this UHF headset works really well and the speaker volume loud enough for 30+ students classroom. (She doesn’t have to screaming anymore) Since its wireless, the speaker can be placed in other site of classroom without next to the headset. It can be used a regular speaker pair with any Bluetooth devices. This speaker volume is design more for larger room, (I have tried to tune down the volume to lowest but still very loud). One thing I can’t figure out is what kind of batteries are used in the speaker and headset. (i.e. Lithium battery? No member effect. Which means it can be charged anytime). If the battery goes bad, can we replace the battery? The only defected item is the cable used to charge the headset. The headset is having issue to get full charge from day one. After troubleshooting for a while with my other similar cable, the headset finally has the steady red charge light till full charge. We need to get a replacement charge cable from the seller for sure. ## Features - POWERFUL Wireless Voice Amplifier: M800 portable microphone headset with speaker provides enough volume. Super 18W output, allows you to project your voice across a group of 20 to 65 people clearly and loudly. UHF wireless transmission technology, 50 feet stable wireless connection at open area. ( When using the wireless mic, it is recommended not to exceed this distance to avoid interruption of the connection signal.) - VERSATILITY: Portable Voice Amplifier +Bluetooth Speaker + Wired Speaker + Recorder. You can easy stream the music from your Bluetooth-enabled devices like Phone,Tablet and Non-bluetooth device via Aux input .The headset amplifer also supports TF Card, U Disk and Recording function. What is more, you can amplify your voice and play music at the same time. The headset megaphone can be used as a karaoke microphone. - PORTABLE and WATERPROOF : Comfortable wireless headset mic with removable ear hook, supports headset and handheld operation, you can use whichever style you want. Compact size (3.66 x 1.65 x 4.57 inches) and light weight (0.86 lb). It comes with adjustable waistband clip belt which is easy to carry. The wearable microphone is made of durable ABS+TPU material, which is waterproof, dustproof and drop resistant. It is a portable microphone for teachers and ideal for outdoor activities. - RECHARGEABLE Voice Enhancer: Both speaker with microphone are Built-in Rechargeable Battery.The M800 personal voice amplifier provides you the working time up to 10-12 hours.The cordless microphone headset last 3-5 hours and fast charging once plugged in. - OUTSTANDING SUPPORT: We always stand behind the product, reply within 24 hours and provide you with a satisfactory solution. We provide lifetime technical support for HaoWorks voice amplifiers. What you get: Voice Amplifier + Wireless Microphone + Wall Charger + Waistband + USB charging cable + Aux cable + Manual. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07DYJZPVY | | Antenna Location | amplify voice | | Audio Input | Bluetooth, AUX (3.5mm audio jack), Microphone | | Best Sellers Rank | #62,243 in Musical Instruments ( See Top 100 in Musical Instruments ) #230 in Power Amplifiers | | Brand | HW HAOWORKS | | Color | Green | | Compatible Devices | Headset, Smartphone, Tablet | | Connectivity Technology | AUX, Bluetooth, USB | | Connector Type | Aux | | Customer Reviews | 3.9 out of 5 stars 459 Reviews | | Enclosure Material | Acrylonitrile Butadiene Styrene (ABS) | | Item Dimensions | 3.66 x 1.65 x 4.57 inches | | Item Weight | 400 g | | Item dimensions L x W x H | 3.66 x 1.65 x 4.57 inches | | Manufacturer | SHIDU | | Mfr Part Number | 4350980655 | | Model Number | wireless voice amplifier | | Mounting Type | Tabletop | | Number of Channels | 1 | | Output Wattage | 18 watts | | Power Source | Battery Powered | | UPC | 759992930870 | ## Product Details - **Brand:** HW HAOWORKS - **Color:** Green - **Compatible Devices:** Headset, Smartphone, Tablet - **Connectivity Technology:** AUX, Bluetooth, USB - **Item dimensions L x W x H:** 3.66 x 1.65 x 4.57 inches ## Images ![Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors - Image 1](https://m.media-amazon.com/images/I/71yFc1-TEgL.jpg) ![Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors - Image 2](https://m.media-amazon.com/images/I/71oaMbyS8ML.jpg) ![Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors - Image 3](https://m.media-amazon.com/images/I/71i6lKoS-+L.jpg) ![Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors - Image 4](https://m.media-amazon.com/images/I/71zCgLPtmPL.jpg) ![Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors - Image 5](https://m.media-amazon.com/images/I/71VDa23nuoL.jpg) ## Questions & Answers **Q: Can this also be used as an external speaker for my computer?** A: Yes, our M800-wireless voice amplifier can be used as an external speaker for computer. Moreover, it supports microphone input and music play simultaneously! Please feel free to order.Thanks. **Q: Hi. i just bought the m800. it did not come with a user manual. the microphone is not working in the bluetooth mode. how do i pair it to the speaker?** A: Hi There, Thanks for your email and very sorry for the inconvenience this may caused for you. Please follow the below steps to pair the microphone. 1. Turn on the speaker, short press the "M" Key. and Prompt Tone "UHF waiting for connection" 2. Turn on the headset microphone and long press "+" till both devices complete pairing. And if you need to use the Bluetooth and mic at the same time. Please follow the below steps after you have successfully paired the microphone. 3. Sort press the "M"key of the speaker, Prompt Tone "Bluetooth is waiting for connection" 4. Turn on the bluetooth on your smartphone, the Bluetooth ID is "SD-M800", and connecting it. By the way, the attached is the pdf of the manual. If you have any problems,please feel free to let us know,we will try our best to solve it to you. Thanks and Best Regards, HaoWorks Support Linda **Q: What should I pay attention to when using it?** A: Please do not let the mcrophone very close( >40 to 50cm ) to the speaker or amplifier! Otherwise it can make a sharp feedback. **Q: Can you plug in a USB drive and play music while talking?** A: Yes. M800-Pro Wireless voice amplifier has a usb plug in also a tf card plug you can talk while playing music at the same time. Thanks. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Easy to set up and use *by T***S on May 11, 2023* I am a teacher and just used this product with my class. It was very easy to set up, charge, and get it started. I like that the speaker has a clip or a strap so it doesn’t matter what type of outfit I’m wearing that day. The microphone is lightweight and convenient. The sound level and the quality was not bad. I have not been able to test the battery life yet, but I’m hoping it would last all day before needing a charge. Overall, the sound quality was loud and clear enough for my students to hear. Next step: test it outdoors!! ### ⭐⭐⭐⭐ UHF wireless headset, Loud speaker, Good for classroom *by W***H on December 11, 2018* We just bought this PA system less than 2 weeks with Wireless UHF headset to replace existing inexpensive wired PA system. My wife primary use it in the class room. Per her opinion, this UHF headset works really well and the speaker volume loud enough for 30+ students classroom. (She doesn’t have to screaming anymore) Since its wireless, the speaker can be placed in other site of classroom without next to the headset. It can be used a regular speaker pair with any Bluetooth devices. This speaker volume is design more for larger room, (I have tried to tune down the volume to lowest but still very loud). One thing I can’t figure out is what kind of batteries are used in the speaker and headset. (i.e. Lithium battery? No member effect. Which means it can be charged anytime). If the battery goes bad, can we replace the battery? The only defected item is the cable used to charge the headset. The headset is having issue to get full charge from day one. After troubleshooting for a while with my other similar cable, the headset finally has the steady red charge light till full charge. We need to get a replacement charge cable from the seller for sure. ### ⭐⭐⭐⭐⭐ Game changer!!! *by C***. on May 9, 2023* This microphone is a total game changer for the classroom. It is super easy to set up plug the box into the wall and use the wireless headset- channelling your inner pop star. I use this microphone in my gifted and talented classroom and it is the perfect tool for transitions, behavior management and teaching my mini lessons. The quality is clear and It really saves my voice and helps all students focus. I will be purchasing another one so my students can use during presentations! Recommend to ANY teacher of any grade level!! ## Frequently Bought Together - Wireless Voice Amplifier Bluetooth Teacher Microphone 18W Waterproof Portable Voice Amplifier Headset Mic Rechargeable Voice Enhancer Personal Microphone for Classroom Outdoors - 18W Voice Amplifier Portable Microphone and Speaker Set,Personal Speaker with Wired Mic Headset & Waistband,Wearable Waterproof Mini Pa System,Megaphone with Mic for Teachers,Classroom,Outdoor Speech - Lapel Microphone for Voice Amplifier 3.5mm Wired Clip-on Mic and 4pcs Microphone Covers Foam, Portable Mini Microphone for Teachers --- ## 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.jp/products/71340840-wireless-voice-amplifier-bluetooth-teacher-microphone-18w-waterproof-portable-voice](https://www.desertcart.jp/products/71340840-wireless-voice-amplifier-bluetooth-teacher-microphone-18w-waterproof-portable-voice) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-26*