This lightweight and stylish microphone can be handheld or worn around the neck, functioning seamlessly in sunlight. It features remote control for PPT slides, laser pointer, Push To Talk (PTT), etc. It supports audio input from devices like MP3 players and mobile phones, while users can customize channel settings. The transmitter automatically powers off after a preset period of inactivity without voice detection. These powerful features ensure high-fidelity audio and convenient operation for both teachers and students.