... control. 3.Unlimited re-written in Arbitrary 4.OEM acceptable. shop led writing boardLED message board, LED Advertisement board, LED ... of flash mode,the form of flashing can be adjust by a control button.6.Increase the sales volume.Through Testing ... new items in restaurants,dressingshops,bars,clubs,theater,mesume,book shop,super market,special store, hairdressers, commercial centers,night market ...