Degauss Labs Sabotage N Plug. Interface type: 3.5 mm, Cable length: 1.2 m, Headset connectors supported: 3.5mm Nokia. Ear coupling: intraaural, Headphone frequency: 20 - 20000 Hz, Impedance: 16 Ом. Weight: 10.5 g. Material: Aluminium, Compatibility: Telephone, Connector contacts plating: Gold