- Durable Construction: Crafted from high-quality ABS aviation material, this amplifier is built to last, ensuring hours of comfort and enjoyment during use. - Versatile USB Card Reader: Equipped with a built-in USB flash memory slot, this amplifier is perfect for playing music, pre-recorded speeches, or sharing important messages with your audience. - Multiple Modes: Easily switch between Voice, Recording, and Siren modes. With variable volume control, this megaphone speaker is suitable for both indoor and outdoor use, providing clear sound in any environment. - Portable and Convenient: The innovative folding handle allows for easy storage and transportation. Compact enough to fit in your backpack or handbag, take it anywhere without hassle. Use Scenarios: - Perfect for schools, this amplifier helps teachers deliver clear instructions to students in large classrooms. - Ideal for outdoor events, it allows speakers to address crowds effectively, ensuring everyone hears important announcements. - Great for emergency situations, the siren mode ensures immediate attention when needed. Experience superior sound performance and unmatched convenience with this versatile amplifier, designed to meet all your audio needs.