The item arrived yesterday within the expected time interval.
While connected the item to my computer to charge it before use, after several minutes of charging the two LED lamps lit up and no matter what I try to do, they can not be switched Off, even by pressing the dedicated button for long times or any other measures.
The attached instructions leaflet is written in broken English and you can not find your way according to it.
I am asking the seller either to refund the purchase or send new.