Perfect replacement for your electric toothbrush charger base. Compatible with BRAUN D12 S12 S18 D17 D18 D19 D20 D29 D34 OC18 OC20 1000 3000 4000 D12013 D12013w D12523 3709 3728 3737 4736 4717 4729 8850 series. It is more convenient to use. Main Features: The machine makes of safety inductive charging base, and use more convenient and security. This electric toothbrush charger are fits BRAUN Oral-B series electric toothbrush. A good replacement charging machine for BRAUN. The adapter cable length is about 100cm.