Mini Megaphone Phone Voice Amplifier Microphone TF Card Meeting Teaching Tour Guide Portable PC Booster Loudspeaker ,Powerful Sound

Using internal magnetic high-power speaker professional speaker processing chip, it not only has a loud sound, but also suppresses the noise floor, is excellent and clear, and has no howling. The sound transmission ran is far and the original sound is clear without leaka or breaka. Lithium battery technology has a lonr battery life Compact and stylish, easy to wear without any burden An expert in preparing lessons while broadcasting and recording at the same time