... Acousto-Magnetic systems, such as Sensormatic, WG, Gateway, etc.. DR label:DR & LE labels are compatible with all brands of Acousto-Magnetic ... . It is designed for relatively narrower aisle width protection when DR labels were just released (for generating extra high profit from ... LE label, which has only one piece of amorphous ribbon, DR label has two pieces of amorphous ribbons which helps in ...