Enhanced Clarity & Performance: Equipped with dual-voice-coil speakers, this wireless voice amplifier delivers crystal-clear sound that easily fills large venues. It features advanced anti-howling technology, stable signal transmission, and high-fidelity sound without echoes or delays, making it ideal for educators and speakers. Convenience at Your Fingertips: Designed for effortless operation, this classroom microphone system connects automatically upon powering up. It includes a handy mute button, allowing you to pause audio capture instantly without needing to shut down the entire system, enhancing usability during presentations and lectures. Versatile Audio Playback & Recording: Offering multiple connectivity options, this personal voice amplifier supports Bluetooth, TF cards, and USB flash drives. It doubles as a music player with easy song switching and also allows recording via TF card or USB, ensuring you capture every lecture or meeting. Color:White & Black Material:plastic Package Contents: 1 * Voice Amplifier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.