K500 Portable Bluetooth Speakers Voice Amplifier Megaphone Loudspeaker With Microphone Usb Charging Auto Speaker For Teaching
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:Bluetooth:YesSpeaker Type:PortablePower Source:Usber Of Loudspeaker Enclosure:1Certification:NoneCabinet Material:PlasticAudio Crossover:Full-rangeChannels:1.1Origin:Cn(origin)Input Power(w):