--- product_id: 689895024 title: "100W Powerful Voice Amplifier with 2 Wireless Microphones S99 | Big Pro Sound Portable Speaker with Microphone, Bluetooth Speaker PA System Karaoke Machine Support BT/USB/TF Card/Aux/Guitar" brand: "responsebridge" price: "₨7666" currency: SCR in_stock: true reviews_count: 11 category: "Response Bridge" url: https://www.desertcart.sc/products/689895024-100w-powerful-voice-amplifier-with-2-wireless-microphones-s99-big store_origin: SC region: Seychelles --- # 2 wireless mics, dual simultaneous use 100W crystal-clear output 5-hour Type-C fast charging 100W Powerful Voice Amplifier with 2 Wireless Microphones S99 | Big Pro Sound Portable Speaker with Microphone, Bluetooth Speaker PA System Karaoke Machine Support BT/USB/TF Card/Aux/Guitar **Brand:** responsebridge **Price:** ₨7666 **Availability:** ✅ In Stock ## Summary > 🎤 Own the room with crystal-clear power and wireless freedom! ## Quick Answers - **What is this?** 100W Powerful Voice Amplifier with 2 Wireless Microphones S99 | Big Pro Sound Portable Speaker with Microphone, Bluetooth Speaker PA System Karaoke Machine Support BT/USB/TF Card/Aux/Guitar by responsebridge - **How much does it cost?** ₨7666 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/689895024-100w-powerful-voice-amplifier-with-2-wireless-microphones-s99-big) ## 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 - • **Dual Mic Dynamics:** Two wireless microphones with independent volume & multiple sound modes for flawless presentations or duets. - • **Portable Pro Design:** Durable metal casing, ergonomic handle & strap make it your go-anywhere PA system for work or play. - • **Seamless Connectivity:** Bluetooth, USB, TF card, Aux, and guitar inputs cover every playback need for versatile pro use. - • **Powerhouse Audio Clarity:** 100W output with 6.5" woofer & 2" tweeter delivers deep bass and crisp highs—no distortion, just pure sound. - • **Gift-Ready & Support-Backed:** Perfect for pros and creatives alike, with dedicated customer care ensuring your event never misses a beat. ## Overview The ResponseBridge S99 is a 100W portable voice amplifier featuring dual wireless microphones, multi-input support (Bluetooth, USB, TF, Aux, guitar), and up to 5 hours of playback via fast Type-C charging. Its rugged metal design and ergonomic portability make it ideal for professional presentations, events, and performances, delivering distortion-free sound with versatile connectivity and user-friendly controls. ## Description desertcart.com: 100W Powerful Voice Amplifier with 2 Wireless Microphones S99 | Big Pro Sound Portable Speaker with Microphone, Bluetooth Speaker PA System Karaoke Machine Support BT/USB/TF Card/Aux/Guitar : Musical Instruments Review: Great, Versatile Speaker System - I've been really impressed with this speaker system. The sound is surprisingly powerful for its size, with plenty of volume to fill a large room or outdoor gathering without noticeable distortion. The audio is clear for both music playback and speaking, making it great for parties, presentations, karaoke, and events. The two wireless microphones paired quickly and have a solid range. Voice quality is crisp, and there was no noticeable lag or interference during use. Having two microphones included makes it perfect for duets, announcements, or group activities. Bluetooth connected instantly to my phone, and I like that it also supports USB, TF cards, AUX input, and even a guitar. The built in controls are straightforward, and everything worked right out of the box. The battery life has been excellent, and the speaker is easy to carry thanks to its portable design. Overall, this is an outstanding value for the price. If you're looking for an affordable, versatile PA speaker with powerful sound and reliable wireless microphones, I would definitely recommend this one. Review: Great addition for the kids !!! Love it!!! - I purchased this voice amp , and it operates very well. The sound quality is good, and the voice comes out clear when music is in the background. It comes with two microphones , which is great for my kids to do sing-along. It is connected via Bluetooth, USB card compatible, and it is rechargeable. Overall a great item!👍🏽 ## Features - 1. Powerful Sound Performance for Crystal-Clear Audio: Experience unparalleled audio quality with this robust voice amplifier, boasting a 100W output powered by a 6.5-inch woofer and a 2-inch tweeter. Enjoy deep bass and crisp treble that deliver astounding sound clarity without any noise interference or distortion.The sound projects widely, filling the surrounding area so everyone nearby can hear clearly, making it perfect for any setting where clear and powerful sound is essential. - 2. Designed for Multifunctionality and Extended Playtime: Tailored to meet diverse playback needs, this speaker with microphone supports Bluetooth connectivity, USB, TF card, Aux input, and an echo function for enhanced audio experiences. It features both 3.5mm and 6.35mm microphone jacks compatible with wired microphones, as well as dedicated guitar ports. Equipped with Type-C fast charging technology, the speaker provides up to 5 hours of continuous playback on a single charge, ideal for churches, small gatherings, schools, classrooms, gyms, corporate meetings, and presentations - 3. Dual Wireless Microphones & Flexible Volume Control: This system comes with two wireless microphones that can operate simultaneously, allowing users to adjust volume levels independently on both the microphone and speaker. Choose from a variety of sound effects modes (Acoustic, Profession, Popular, Hip-hop) to suit different settings effortlessly, ensuring optimal performance for various events and performances - 4. Premium Design & Effortless Portability: Crafted with a high-end appearance, this portable PA system features a durable metal casing and iron mesh grille, combining style with practicality. Its ergonomic design includes an adjustable handle and strap, enabling effortless portability so you can carry it anywhere with ease, whether you're teaching, coaching, guiding tours, or hosting events - 5. Perfect Gift & Reliable Customer Support: Packaged elegantly, this multi-functional portable microphones with speaker makes an excellent gift for teachers, coaches, tour guides, karaoke enthusiasts, musicians, wedding planners, event managers, and more. Our commitment to customer satisfaction means we provide reliable support; if you encounter any issues, please contact us before considering a return—we are dedicated to offering satisfactory solutions ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0DMF419PY | | Antenna Location | Classrooms, Speeches, Singing, Outdoor, Indoor, Family Nights, Gift, Events | | Audio Input | Microphone | | Best Sellers Rank | #701 in Musical Instruments ( See Top 100 in Musical Instruments ) #4 in Karaoke Portable Systems #277 in Music Recording Equipment | | Brand | ResponseBridge | | Built-In Media | 1* Amplifier, 1* Auxiliary Cable, 1* Shoulder Strap, 1* User Manual, 2* Microphones | | Color | Black | | Compatible Devices | Guitar, Laptop, MP3 Player, Smartphone, Tablet | | Connectivity Technology | AUX, Bluetooth, USB, Wireless | | Connector Type | Micro USB, USB Type C | | Customer Reviews | 4.5 out of 5 stars 265 Reviews | | Enclosure Material | Acrylonitrile Butadiene Styrene (ABS), Aluminum, Metal, Plastic | | Item Dimensions | 5.12 x 7.48 x 9.84 inches | | Item Weight | 7.5 pounds | | Item dimensions L x W x H | 5.12 x 7.48 x 9.84 inches | | Manufacturer | ResponseBridge | | Mfr Part Number | S99 | | Model Number | S99 | | Mounting Type | Floor Standing | | Number of Channels | 2 | | Output Wattage | 100 watts | | Power Source | Battery Powered | | Unit Count | 1 Count | | Warranty Description | 1 Year Manufacturer | ## Product Details - **Brand:** ResponseBridge - **Color:** Black - **Compatible Devices:** Guitar, Laptop, MP3 Player, Smartphone, Tablet - **Connectivity Technology:** AUX, Bluetooth, USB, Wireless - **Item dimensions L x W x H:** 5.12 x 7.48 x 9.84 inches ## Images ![100W Powerful Voice Amplifier with 2 Wireless Microphones S99 | Big Pro Sound Portable Speaker with Microphone, Bluetooth Speaker PA System Karaoke Machine Support BT/USB/TF Card/Aux/Guitar - Image 1](https://m.media-amazon.com/images/I/71u2xAtTPQL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: If your S99 speaker and wireless handheld microphone fail to connect, follow these steps** A: 1）Pairing Issue: Speaker and mic usually auto-pair when powered on. If not, check the manual for pairing steps. 2）Sudden Disconnect: Press the mic’s power button 3-5 times quickly to reconnect. Repeat until it works. **Q: How many microphones can the S99 support at the same time？** A: The S99 supports up to 4 microphones simultaneously, as it comes with both 3.55mm and 6.35mm jack ports that can be used at the same time. **Q: Does the S99 speaker support use with a guitar?** A: Yes, it supports use with a guitar. **Q: Does the S99 play music and amplify sound simultaneously?** A: Yes, it supports playing music and amplifying sound at the same time. Please pair the microphone before connecting to Bluetooth. (Avoid reversing these steps, as it may cause connection issues） **Q: What charger specs are recommended for the fastest charging? Can I use the speaker while it's charging?** A: For optimal charging speed, we recommend using a 5V/3A charger. Yes, you can safely use this speaker while it is charging. This will not damage the device or affect its battery life. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great, Versatile Speaker System *by D***N on July 7, 2026* I've been really impressed with this speaker system. The sound is surprisingly powerful for its size, with plenty of volume to fill a large room or outdoor gathering without noticeable distortion. The audio is clear for both music playback and speaking, making it great for parties, presentations, karaoke, and events. The two wireless microphones paired quickly and have a solid range. Voice quality is crisp, and there was no noticeable lag or interference during use. Having two microphones included makes it perfect for duets, announcements, or group activities. Bluetooth connected instantly to my phone, and I like that it also supports USB, TF cards, AUX input, and even a guitar. The built in controls are straightforward, and everything worked right out of the box. The battery life has been excellent, and the speaker is easy to carry thanks to its portable design. Overall, this is an outstanding value for the price. If you're looking for an affordable, versatile PA speaker with powerful sound and reliable wireless microphones, I would definitely recommend this one. ### ⭐⭐⭐⭐⭐ Great addition for the kids !!! Love it!!! *by K***. on July 22, 2026* I purchased this voice amp , and it operates very well. The sound quality is good, and the voice comes out clear when music is in the background. It comes with two microphones , which is great for my kids to do sing-along. It is connected via Bluetooth, USB card compatible, and it is rechargeable. Overall a great item!👍🏽 ### ⭐⭐⭐⭐⭐ Powerful and sturdy *by M***B on June 17, 2026* We have had so much fun with this voice amplifier. It’s well made, sturdy and powerful. It has become a must for parties as we use it to sing, play games, you name it. The sound quality and the speaker is good. The Bluetooth connections gives you many options for input. It comes with two wireless microphones which connect easily on Bluetooth to the speaker. It’s a little heavy but we carry it in the same box it came in, so not a problem. ## Frequently Bought Together - 100W Powerful Voice Amplifier with 2 Wireless Microphones, Big Pro Sound Portable Speaker with Microphone, Bluetooth Speaker PA System Karaoke Machine Support BT/USB/TF Card/Aux/Guitar S99 - Bietrun Wireless Microphone Headset, UHF Wireless Headset Mic System, 160ft Range,1/8'' and 1/4'' Plug, for Speakers, Voice Amplifier, PA System(Not Supported AUX/iOS) --- ## 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.sc/products/689895024-100w-powerful-voice-amplifier-with-2-wireless-microphones-s99-big](https://www.desertcart.sc/products/689895024-100w-powerful-voice-amplifier-with-2-wireless-microphones-s99-big) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-07-31*