Portable Voice Amplifier with Wireless Lavalier Microphone for Teachers, Black

Clear, Original Sound: This wireless voice amplifier utilizes 2.4G wireless technology and offers 360-degree omnidirectional sound pickup, ensuring your voice is loud, clear, and distortion-free. It provides a stable, noise-free connection. Wide Coverage: With a sound coverage area of ​​up to 15,000 square feet (1,400 square meters), the SHIDU amplifier is an essential tool for teachers and instructors; it allows up to 150 students to hear you clearly while helping to protect your voice. Long Battery Life: Featuring a built-in 2500mAh battery, this portable microphone and speaker system offers up to 10 hours of continuous use on a single charge, with a full recharge taking only 3–5 hours—perfect for extended teaching sessions. Versatile Features: The amplifier supports Bluetooth connectivity and can play MP3 files via TF card or USB flash drive. It also functions as a speaker when connected to a mobile phone or computer via an AUX cable and supports audio recording and playback. Wireless Lavalier Microphone: This clip-on microphone attaches to your collar or tie, eliminating the need for a headset and avoiding the discomfort associated with traditional headsets. This significantly reduces strain, making teaching or presenting more comfortable. Smart AI noise-cancellation technology filters out background noise to ensure crystal-clear sound quality. Superior Quality: Weighing just 0.52 lbs (approx. 227g), this portable amplifier is compact and lightweight, making it easy to carry and comfortable to wear for long periods. Please feel free to contact us if you encounter any issues during use. [Note] To avoid harsh feedback, do not point the microphone directly at the speaker unit! If the volume is too low when the microphone is clipped to your collar, please set the microphone volume to the maximum level and press the "+" button on the microphone to increase the volume.