AOCOAKW Voice Amplifier for Teachers with Wired Microphone Headset and Waistband Portable Rechargeable Speaker Megaphone for Classrooms Speeches Tour Guide Meeting Coaches Outdoors Indoors

【Voice Amplifier】This voice amplifier amplifies your voice and protects your throat. It provides clear, crisp, noise-free, distortion-free sound and can cover an impressive area of ​​approximately 20,000 square feet (1000 ㎡), perfect for large rooms or outdoor environments., 【Long Battery Life】The portable amplifier has a built-in 1200 mAh rechargeable lithium battery. It only takes 2-3 hours to fully charge, and it can be used continuously for 15-18 hours on a single charge, ensuring that your amplification will not be interrupted due to battery exhaustion during your activities., 【Comfortable and Portable】This Voice Amplifier is easy to use and has a detachable handle with an adjustable strap that you can wear around your waist or around your neck. The microphone headset is lightweight and adjustable. Easily adjust the distance between the microphone and your mouth. The ergonomic design will not deform after long-term wearing. Perfect for teachers., 【Multi-Function Personal Amplifier】It supports Bluetooth, TF card, USB flash drive playback, and can also be used as a separate FM radio to easily play your favorite music. You have full control over music playback, and can choose to repeat a single song, loop all music, and switch between songs. In addition, you can connect it directly to an audio source and use it as a wired speaker.