Idle small bluetooth speaker, simply connect two lines to turn it into a big bluetooth speaker in

Idle small bluetooth speaker, simply connect two lines to turn it into a big bluetooth speaker, the sound quality is very nice
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[@c.x5543]

能有立体声 2.0效果吗？

[@proofna]

閣下東西很有參考價值，只要肯篩選有不少有用的，惟獨電池翻新再用就.....。🥸

[@thomascheung2857]

怎樣將不是藍牙的音箱變成藍牙