EK 2020-D II USArticle No. 504795 EK 2020-D-II-US 3 Spare Parts available Battery pack with rear housingChannel switch with rupperPCB Choose Spare Part Spare Parts Channel switch with rupper020€ 2,49 Channel switch with rupper Complexity € 2,49 incl. VAT – free shipping Article No. 523808 Choose Spare Part Battery pack with rear housing050 Battery pack with rear housing MOQ: 10 pcs. Complexity Article No. 543604 Choose Spare Part PCB090 PCB Sym. Imp.transducer Complexity Article No. 545205 Choose Spare Part Attention! Due to the complexity of the repair, some of the spare parts shown can only be replaced by specialist workshops. In this case, please contact your nearest Sennheiser Service Center.