--- product_id: 301846849 title: "Voice Amplifier Bluetooth, Microphone Amplifier Wireless 25 Watt Sound System Portable with Mic, 2000mAh Rechargeable Lithium Battery for Kindergartner/Teachers/Tour Guides/Elderly/Singers (Black)" brand: "responsebridge" price: "KD 56.62" currency: KWD in_stock: true reviews_count: 5 category: "Response Bridge" url: https://www.desertcart.com.kw/products/301846849-voice-amplifier-bluetooth-microphone-amplifier-wireless-25-watt-sound-system store_origin: KW region: Kuwait --- # 33ft Bluetooth range 25W powerful output 12h rechargeable battery Voice Amplifier Bluetooth, Microphone Amplifier Wireless 25 Watt Sound System Portable with Mic, 2000mAh Rechargeable Lithium Battery for Kindergartner/Teachers/Tour Guides/Elderly/Singers (Black) **Brand:** responsebridge **Price:** KD 56.62 **Availability:** ✅ In Stock ## Summary > 🎤 Own the room, save your voice, and never miss a beat! ## Quick Answers - **What is this?** Voice Amplifier Bluetooth, Microphone Amplifier Wireless 25 Watt Sound System Portable with Mic, 2000mAh Rechargeable Lithium Battery for Kindergartner/Teachers/Tour Guides/Elderly/Singers (Black) by responsebridge - **How much does it cost?** KD 56.62 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/301846849-voice-amplifier-bluetooth-microphone-amplifier-wireless-25-watt-sound-system) ## Best For - responsebridge enthusiasts ## Why This Product - Trusted responsebridge brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Command Every Room:** 25 watts of crystal-clear sound coverage up to 2600㎡—speak to crowds without strain or distortion. - • **Versatile Sound Hub:** Supports USB, TF card, aux input, and recording—your all-in-one portable PA system for any setting. - • **Endurance That Keeps Up:** Up to 12 hours of wireless amplification on a single charge—power through your longest presentations and tours. - • **Effortless Wear & Control:** Lightweight design with adjustable waistband and wireless headset mic for hands-free, on-the-go amplification. - • **Seamless Wireless Freedom:** Bluetooth connectivity with 33 feet range lets you move freely while streaming music or amplifying your voice. ## Overview The S28U Voice Amplifier Bluetooth is a sleek, portable 25W PA system designed for professionals who demand clear, powerful sound coverage up to 2600㎡. Featuring a rechargeable 2000mAh battery delivering up to 12 hours of continuous use, it offers versatile connectivity options including Bluetooth streaming, USB, TF card, and aux input. Lightweight and wearable with an adjustable waistband and wireless headset mic, it’s perfect for teachers, tour guides, fitness instructors, and anyone needing reliable voice amplification on the move. ## Description S28U Bluetooth Amplifier Speaker with Wireless Microphone 1. 25 Watt sound output amplify your voice and saves your throat. The sound is clear no noise and no distortion is loud enough to cover a large room (2500㎡/26000sq.ft) -- Can be used for group of 50-200 people. 2. Bluetooth Technology; Not only a voice amplifier but also a bluetooth speaker--Quick and easy to pair to your iPads, iPhones, Sumsung, HTC, LG, ect. Enjoy wireless operation within 33 feet(without obstacle). Also, It comes with a 3.5mm audio cable, you can connect it to all 3.5 mm enabled device, like laptop, computers. 3. Portable pa system for classroom, meeting room, church, fitness room, yard and any other place that need voice amplification. Attentions! Please fully charged both of the wireless headset mic & voice speaker the first time you use it! 1. Please do not put the voice amplifier with headset microphone too close( >40-50cm ) otherwise it will have a sharp noise. 2. Before using, please turn down the volume and then adjust the volume according your need. 3. Do no point the microphone toward the speaker. Specs & Details 1. Output power: 25W 2. Charging Voltage: DC 5V 1A 3.Battery: 2*7.4V/2000mAh 4. Working time:with 50% volume 8~10 hours (musical mode),10~12 hours (MIC mode) 5. Charging time: 3-5 hours 6. Product size:4.8*3.9*1.9in/ 123*99*48mm 7. Unit weight: 0.79lb/ 357g 8. Working temperature: -10℃~45℃ 9. Frequency response: 90Hz~18KHz 10. Sound coverage: 2500㎡ What You Get --(Total 7pcs) 1 * wireless voice amplifier 1 *adjustable waistband 1 * wireless headset microphone 1 * 3.5mm audio cable 1 * DC-USB charging cable 1 * user manual Review: Works great! - I used this for socially distanced, masked rehearsals In a park. Our first attempt, before the mic arrived, was torturous. With masks and distance and ambient noise, it was exhausting to get attention, be heard, or be understood.This. Unit made it possible to do the work while maintaining safe distance. I wore the mic inside my mask. The sound quality is excellent. The controls on the wireless earpiece made it easy to mute or adjust volume when necessary. I didn’t play with the controls on the speaker much in rehearsal, but I was able to pair other devices via Bluetooth to play some musical examples. There is the option to wear the speaker unit or set it somewhere. I was working in a 50 sq. yd. space and never went out of range. The speaker fit in my overall or cargo pants pockets when I was moving around. This helped my singers/actors to locate me instead of just my voice coming out of a remote speaker on the sidelines. The speaker, like any speaker, needs to be pointing toward the listeners, especially in an open air setting. Battery life was excellent. Review: Excellent produit. - Le produit est conforme à mes attentes et aux descriptions données. Nous l'avons essayé dans une salle des fêtes volumineuse et le résultat est parfait. ## Features - 【 25W Loudly Voice Amplifier 】Clear sound, low feedback and 26000sq.ft/2600㎡ sound cover range, This 25W portable microphone and speaker set helps you to speak with a lower voice saving your vocal cords unnecessary stress. No more yelling. - 【 Durable Rechargeable Battery】 it gives you up to 12 hours wireless stable continuous amplification with a single charge; Personal voice amplifier wireless microphone ideal for Teachers, Presentation, Training, Meeting, Tour Guide, Yoga, Fitness instructor, Classroom and more Outdoor or indoor. - 【 Multifunctional Portable Sound System】 It is not only a voice amplifier, but also supports USB, TF Card , aux jack so it can serve as a wireless or wied speaker. besides, it also supports recording. - 【Portable Pa System with Wireless Mic 】You can stream your favorite music from any type of Bluetooth-enabled mobile device, up to 33 feet away. ECHO function can make your sound more dynamic, it is a good bluetooth microphone and speaker system. - 【Package includes】 1 * S28 bluetooth voice amplifier, 1 * microphone wireless headset,1 * adjustable waistband, 1 * 3.5mm audio cable, 1 * USB charging cable, 1 * Charging plug,1 * user manual. - 【After-sales guarantee】We support 12-month worry-free warranty and responsive and friendly customer service within 24 hours. - 【What’s more】We have long been engaged in the wholesale and retail business of amplifiers. Welcome to write to us to discuss wholesale business. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07D2F2LNR | | Antenna Location | Singing | | Audio Input | Wireless microphone, 3.5mm audio cable | | Brand | ResponseBridge | | Built-In Media | 1 * S28 voice amplifier, 1 * microphone wireless headset,1 * adjustable waistband, 1 * 3.5mm audio cable, 1 * USB charging cable, 1 * Charging plug,1 * user manual. | | Color | Black | | Colour | Black | | Compatible Devices | Amplifier, Headphone, Laptop, Personal Computer, Speaker | | Compatible devices | Amplifier, Headphone, Laptop, Personal Computer, Speaker | | Connectivity Technology | Bluetooth, USB | | Connectivity technology | Bluetooth, USB | | Connector Type | Aux, USB | | Customer Reviews | 4.1 out of 5 stars 223 Reviews | | Enclosure Material | Acrylonitrile Butadiene Styrene (ABS) | | Frequency Response | 18 KHz | | Impedance | 4 Ohms | | Item Dimensions | 12.2 x 9.9 x 4.8 centimeters | | Item Weight | 0.79 Pounds | | Item dimensions L x W x H | 12.2 x 9.9 x 4.8 centimeters | | Manufacturer | SHIDU Digital | | Mfr Part Number | R8-S28U | | Model Number | R8-S28U | | Mounting Type | Tabletop | | Mounting type | Tabletop | | Number of Channels | 1 | | Output Wattage | 25 Watts | | Power Source | Battery Powered, Corded Electric | ## Product Details - **Brand:** ResponseBridge - **Color:** Black - **Compatible Devices:** Amplifier, Headphone, Laptop, Personal Computer, Speaker - **Connectivity Technology:** Bluetooth - **Item dimensions L x W x H:** 4.8 x 3.9 x 1.9 inches ## Images ![Voice Amplifier Bluetooth, Microphone Amplifier Wireless 25 Watt Sound System Portable with Mic, 2000mAh Rechargeable Lithium Battery for Kindergartner/Teachers/Tour Guides/Elderly/Singers (Black) - Image 1](https://m.media-amazon.com/images/I/71BfVnhYSYL.jpg) ![Voice Amplifier Bluetooth, Microphone Amplifier Wireless 25 Watt Sound System Portable with Mic, 2000mAh Rechargeable Lithium Battery for Kindergartner/Teachers/Tour Guides/Elderly/Singers (Black) - Image 2](https://m.media-amazon.com/images/I/61WRWaN4smL.jpg) ![Voice Amplifier Bluetooth, Microphone Amplifier Wireless 25 Watt Sound System Portable with Mic, 2000mAh Rechargeable Lithium Battery for Kindergartner/Teachers/Tour Guides/Elderly/Singers (Black) - Image 3](https://m.media-amazon.com/images/I/71eD+bF6eAL.jpg) ![Voice Amplifier Bluetooth, Microphone Amplifier Wireless 25 Watt Sound System Portable with Mic, 2000mAh Rechargeable Lithium Battery for Kindergartner/Teachers/Tour Guides/Elderly/Singers (Black) - Image 4](https://m.media-amazon.com/images/I/61ghAdVOLHL.jpg) ![Voice Amplifier Bluetooth, Microphone Amplifier Wireless 25 Watt Sound System Portable with Mic, 2000mAh Rechargeable Lithium Battery for Kindergartner/Teachers/Tour Guides/Elderly/Singers (Black) - Image 5](https://m.media-amazon.com/images/I/71A7orXoavL.jpg) ## Questions & Answers **Q: I play the piano..would this be good for carrying my singing voice ? If not ...what ?** A: If you are playing an acoustic piano in a small room, I'd say yes, I use it on a train car as I stroll and play banjo. **Q: Hello. What distance does it cover?** A: I don’t know, but I use it in a big classroom, about 70-80 people, everyone can hear my voice clearly. **Q: Can you add a different mic to this or only the one it comes with? Mine is cutting out and a want to replace it** A: You can order a new mic as long as it’s bluetooth. **Q: Does this amplifier have a echo function?** A: Yes, this S28UHF has a reverb function, you can see it on the left side of the top, it's even better if you take the mic to talk! ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great! *by M***D on 12 September 2020* I used this for socially distanced, masked rehearsals In a park. Our first attempt, before the mic arrived, was torturous. With masks and distance and ambient noise, it was exhausting to get attention, be heard, or be understood.This. Unit made it possible to do the work while maintaining safe distance. I wore the mic inside my mask. The sound quality is excellent. The controls on the wireless earpiece made it easy to mute or adjust volume when necessary. I didn’t play with the controls on the speaker much in rehearsal, but I was able to pair other devices via Bluetooth to play some musical examples. There is the option to wear the speaker unit or set it somewhere. I was working in a 50 sq. yd. space and never went out of range. The speaker fit in my overall or cargo pants pockets when I was moving around. This helped my singers/actors to locate me instead of just my voice coming out of a remote speaker on the sidelines. The speaker, like any speaker, needs to be pointing toward the listeners, especially in an open air setting. Battery life was excellent. ### ⭐⭐⭐⭐⭐ Excellent produit. *by R***D on 28 March 2025* Le produit est conforme à mes attentes et aux descriptions données. Nous l'avons essayé dans une salle des fêtes volumineuse et le résultat est parfait. ### ⭐⭐ Funziona ma non per molto *by E***E on 8 October 2024* Il prodotto funziona abbastanza bene all'inizio ma dopo qualche mese la batteria inizia a durare pochissimo e la cassa non funziona mentre è in carica, in pratica diventa quasi inutilizzabile. ## Frequently Bought Together - 25W Wireless Voice Amplifier Bluetooth 5.3 | Grade Wireless Portable PA System with Reverb| Rechargeable Speaker 12H Battery for Teachers, Tour Guides, Presenters (2000mAh/S28) - W WINBRIDGE Voice Amplifiers Speaker Carry Case Cover Bag with Mesh Pocket Zip And Snap Hook Fit USB Cable Wall Charger Phone WB010 - WinBridge Portable Collar Clip Microphone 3.5mm Audio Compatible with All WinBridge 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.com.kw/products/301846849-voice-amplifier-bluetooth-microphone-amplifier-wireless-25-watt-sound-system](https://www.desertcart.com.kw/products/301846849-voice-amplifier-bluetooth-microphone-amplifier-wireless-25-watt-sound-system) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-07-05*