Specifications:Ear bud: fashionable alloy metallic housingPlug: 3.5mm gold-platedCord length: 1.2mmCable: zipper cord、 portable reinforced textile cordFrequency response: 20HZ-22000HZSensitivity: ?103db¡À3db SPL 1KHZMax input:5mW12 months quality warrantyCE and RoHS certificated