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VoiceBooster Voice Amplifier Black MR2300 by TK Products, Portable, for Teachers, Coaches, Tour Guides, Presentations, Costumes, Etc.
Small Super Powerful Voice Amplifier/Speaker. Size is 5.31in x 3.74in (135mm x 95mm x 46mm) Rechargeable lithium batteries that last 10-15 hours of continuous use before needing a charge. Battery life will last 2-3 years. Very loud, excellent clarity, low feedback. Sound covers over 6,500 square feet. Can also be used MP3 speaker. The amp has a microphone input and a MP3 input. The amp will accept signals from both input ports and out through the speaker at the same time. Comes with TK Products

Price is $
Price: $68.95