POWERFUL VOICE AMPLIFIER – This portable speaker delivers 25W of amplified sound, covering 8,000 sq ft making it ideal for public speaking, fitness classes, or any situation that requires a reliable communication device. A classroom must have for teachers, go-to sound system for tour guides, and a convenient solution for outdoor events where your voice needs to carry. RECHARGEABLE & LONG LASTING BATTERY – Built-in rechargeable battery powers this portable voice amplifier for 12–16 hours of continuous use and fully recharges in just 6 hours. It provides reliable, consistent amplification for 2–3 years—perfect for anyone who needs dependable, hands-free voice projection every day. MP3, USB, SD & FM RADIO READY – Equipped with an SD card slot, USB port, and MP3 input plus a built-in FM radio with automatic tuning and an LCD display for track/frequency info. Its extendable body boosts volume projection, and it can double as a standalone MP3 speaker when plugged into an external music source. EVERYTHING YOU NEED IN ONE BOX – This complete voice amplifier kit includes headset microphone, charger cable (US plug), MP3 cable (male to male 3.5mm), MP3 line in port, microphone line in port, adjustable waist band, and carry bag. LIGHTWEIGHT, WEARABLE & COSTUME-FRIENDLY – Weighing 1.72 lbs, this portable personal voice amplifier can be clipped to a belt, or worn over the shoulder. Delivers loud, clear sound ideal for Halloween masks and costumes that need voice amplification to enhance your character. A fun and functional gift for teachers, performers, or cosplayers who need strong, hands-free voice projection. The Voicebooster Speak Out MR-AK38 personal voice amplifier delivers 25W of powerful, crystal-clear sound, covering over 8,000 sq. ft.—ideal for teachers, tour guides, presentations, and public speaking. This wearable, portable speaker functions like a compact megaphone, ensuring your voice is heard loud and clear. The included headset microphone offers hands-free convenience, perfect for classroom lectures, coaching, and vocal performances. With MP3, USB, and SD card inputs, plus a built-in FM radio, this mini amplifier lets you play music and sound files while speaking through the headset microphone simultaneously. The rechargeable battery lasts 12–16 hours per charge for long-lasting performance. Designed for comfort and portability, it features an adjustable carry strap and an extendable body for optimized sound projection. Whether you need a teacher microphone, classroom amp, tour guide speaker, or public speaking megaphone, this compact, powerful amplifier is the perfect solution—also a fun and practical addition to Halloween costumes or masks that require voice amplification.