Endurance The JIVO Endurance earphone provide a secure and customised fit with their flexible ear hook design. Including a pack of three different size silicone eartips to ensure the perfect fit with superior noise isolation. The supplied carrying pouch protects your endurance earphones when not in use. Specifications Driver: 10mm Impedance: 32 Sensitivity: Rated input power: 3mW Maximum input power: 5mW