Apparatus for labelling individual products, in particular packages or goods, - having a feed device for transporting a respective product along a transport path, having a label dispensing device for providing a label, and - having a label application device with a blower head for applying the label to the surface of the product, - wherein the blower head has a blower head housing with a pressure chamber, - wherein the blower head housing has, on the side pointing toward the feed device, a housing part with a multiplicity of housing openings which connect the interior of the pressure chamber to the surroundings of the blower head housing and through which a compressed-air shock directed in a blowing-off direction from the housing openings to the feed device can escape, - wherein the pressure chamber has a compressed-air port for the introduction of compressed air into the pressure chamber, and characterized - in that the label application device has at least two slide elements (13, 14, 15) which are each displaceable between a first position, in which the respective slide element (13, 14, 15) can completely block at least some of the housing openings, and a second position, in which the respective slide element (13, 14, 15) can at least partially open up several of said housing openings, - in that, in the least two slide elements (13, 14, 15), there are provided holes (16, 17, 18) which are arranged such that they can, in the second position of the respective slide element (13, 14, 15), be placed at least partially in overlap with the housing openings that can be blocked in the first position by the respective slide element (13, 14, 15), and such that they are, in the first position of the respective slide element (13, 14, 15), offset with respect to said housing openings, such that no overlap is realised, and - in that the device is designed such that the compressed-air shock can escape from the pressure chamber through the holes (16, 17, 18) in the at least two slide elements (13, 14, 15) and through the housing openings at least partially overlapping said holes. - having a feed device for transporting a respective product along a transport path, having a label dispensing device for providing a label, and - having a label application device with a blower head for applying the label to the surface of the product, - wherein the blower head has a blower head housing with a pressure chamber, - wherein the blower head housing has, on the side pointing toward the feed device, a housing part with a multiplicity of housing openings which connect the interior of the pressure chamber to the surroundings of the blower head housing and through which a compressed-air shock directed in a blowing-off direction from the housing openings to the feed device can escape, - wherein the pressure chamber has a compressed-air port for the introduction of compressed air into the pressure chamber, and characterized - in that the label application device has at least two slide elements (13, 14, 15) which are each displaceable between a first position, in which the respective slide element (13, 14, 15) can completely block at least some of the housing openings, and a second position, in which the respective slide element (13, 14, 15) can at least partially open up several of said housing openings, - in that, in the least two slide elements (13, 14, 15), there are provided holes (16, 17, 18) which are arranged such that they can, in the second position of the respective slide element (13, 14, 15), be placed at least partially in overlap with the housing openings that can be blocked in the first position by the respective slide element (13, 14, 15), and such that they are, in the first position of the respective slide element (13, 14, 15), offset with respect to said housing openings, such that no overlap is realised, and - in that the device is designed such that the compressed-air shock can escape from the pressure chamber through the holes (16, 17, 18) in the at least two slide elements (13, 14, 15) and through the housing openings at least partially overlapping said holes.