Product name: jbl (charge 4) clone.
, tf card, usb, fm, aux, can be connected
product materials: abs plastic, cloth mesh, rubber oil
bluetooth specification: bluetooth 5.0 jerry
transmission distance: 10m
horsper specification: 52mm*2 4 oums 3w*2
the power amplifier specification: 3w*2
battery specification: 800mah
play time: 2-3hrs