Professional Mini Portable Microphone Voice Amplifier for Teaching, Guide, Promotion Unique Mixed Sound Stereo Enjoy crystal-clear audio with advanced mixed sound stereo technology. This speaker system is designed to deliver rich, balanced sound, making it ideal for teaching, guiding tours, shopping mall promotions, performances, and outdoor activities. Your voice will always be heard clearly, even in noisy environments. Powerful 25W Output with Wide Coverage Equipped with a high-power 25W amplifier, this device can project your voice up to 500 meters. Perfect for large classrooms, outdoor events, or crowded venues, ensuring everyone in your audience can hear you effortlessly. Multiple Playback Options This amplifier is fully compatible with USB 1.1/2.0 drives, TF cards, SD cards, and MMC cards. It automatically detects and plays audio files from your storage devices, offering seamless and convenient playback for your presentations or music. Versatile MP3 Speaker with 6 Music Modes Transform your amplifier into a high-quality MP3 speaker. Choose from six different music modes—POP, ROCK, Classic, JAZZ, Bass, and Flat—to match your mood and enjoy a personalized listening experience. FM Radio Function Stay informed and entertained with the built-in FM radio feature. Easily tune in to your favorite radio stations and enjoy music, news, or talk shows wherever you are. Portable and User-Friendly Design Compact and lightweight, this mini voice amplifier is easy to carry and simple to operate. It’s the perfect companion for teachers, tour guides, presenters, and anyone who needs reliable voice amplification on the go. Upgrade your communication and performance with this Professional Mini Portable Microphone Voice Amplifier—delivering powerful sound, versatile features, and unmatched convenience for any occasion.