Dear people, this speaker is a metal mesh cover. In some cases, individual speakers may produce a little resonant squeak under certain frequency bands. This is easy to solve. Just a few drops of 502 or 304 glue at the gap of the metal mesh. Well, please don’t return the product because of this. The price/performance ratio is good. We will lose everything if you return it, and the returned speaker will be difficult to sell again, thank you
Needless to say, good product, moderate size, good sound quality, low price, high cost performance, for computer, or notebook, only a USB port is enough
Built-in sound card and power amplifier inside the speaker
The physical store can easily sell above 70