Review on Portable acoustics JBL Charge 4, 30 W, red by Nguyn Thanh Bnh ᠌

From a technical, engineering and financial point of view, adding a MircoSD slot is easy and worth a penny. But apparently, narrow-minded marketers won in the intra-corporate struggle of JBL. As a result, there is no MircoSD connector, and the USB connector is used only for recharging other devices (it's useless to insert a USB flash drive there)! Different pros: Really great sound with decent bass. More than enough for the volleyball court. Some cons: There is no slot for a MircoSD card in the column! This is the sheer stupidity of marketers who forced techies not to make a slot for mircoSD! In a fake (replica) worth 1000, and that is, there is a MicroSD slot and a USB slot, and both work! But the sound in the replica was hoarse, and then the whistles appeared. I had to buy the original JBL. And in the original for 6000, although the sound is great, you can only play music via Bluetooth or an aux cable. But that's not the point! The column should be autonomous, for example, when doing sports or playing paintball, or even at a picnic, when the owner of the column ran to buy more vodka with his phone. The rest to sit without music? Or, for example, they call the owner's phone - the music is immediately interrupted. Or messages are poured onto the owner's phone - and the speaker plays the sound of messages instead of music. This is fine?