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Make sure this fits by entering your model number. Mini Voice Amplifier. Only 3.95 * 1.56 * 3.34 inches, 0.45lb voice amplifier with microphone for you if you are finding a portable voice amplifier for amplifying the voice Powerful Voice Amplifier. As a personal voice amplifier, 16W powerful and crystal clear voice makes all your students hear you loud without delay and distortion Rechargeable Voice Amplifier. The voice amplifier for teachers is equipped with a built-in 2200mAh capacity battery. After charging 3-5 hours to full, the voice amplifier portable speakers’ working time is 8-10 hours Bluetooth Voice Amplifier. The portable microphone and speaker support Bluetooth, TF card, USB flash disk, Aux-in, and loop. Multiple functions of the best voice amplifier Personal Voice Amplifier. The great portable speaker and microphone is suitable for those who want to speak with a portable microphone headset while playing music