ZORBES Voice Amplifier for Teachers - Microphone Headset Set 2200 mAh, with Headset Microphone Support TF Card/U Flash Disk, Portable Voice Amplifier for Teachers, tour guide, coach, speaker Audio Cables see live camera feeds

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SUITABLE FOR VARIOUS SITUATION: Suitable for both outdoor or indoor use

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Designed to fit most sliding window or door tracks under 19/32 inch wide

ZORBES Voice Amplifier for Teachers - Microphone Headset Set 2200 mAh, with Headset Microphone Support TF Card/U Flash Disk, Portable Voice Amplifier for Teachers, tour guide, coach, speaker Audio Cables see live camera feedsPOWERFUL SOUND: Compact size voice amplifier with 8W output is clear and noiseless, enough to cover a large room of 10 50 people. Amplifies your voice and saves your throat. LIGHTWEIGHT POWER PACK: Voice Amplifier This microphone and speaker set is a portable public address system. You can take it to multiple places, such as classrooms, bingo calls and outdoors. VOICE AMPLIFIER CAN LONG WORK DURATION: Built in 2200mAh battery. Can work for 8 hours as