Amplifier/video recorder - high quality

Amplifiers and vcrs are two different electronic devices. a loudspeaker is a device used to amplify sound and is often used in conference rooms, lecture halls, concerts, etc. a video recorder is a device used to record video, which can be used in home video, surveillance, film production and other fields. the functions of the two are different, but both have the characteristics of convenience, ease of use, and good effect, and are widely used in various fields.

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