Song's Teflon Westone Upgrade Replacement Cable for UE Custom, 4R, UM3XRC, UM2XRC ColorBllue, Length120cm WarrantyNinety days( Once for repair or exchange excluding initial failure. You need to pay for shipping. And we can do for profit after the ninety days. Compatible modelsUE custom, UM3X & UM2X removable, Westone 4R MaterialX OFC (Oxygen-free copper) Silver plated wire with a Teflon insulation + 24K Gold plated copper pin connectors PlugNeutrik 3.5 gold plated straight plug