DescriptionMaterial : MetalCategory : Earphones & HeadphonesActive Noise-Cancellation : YesVolume Control : YesControl Button : YesVocalism Principle : ElectrostaticWireless Type : bluetoothCommunication : WirelessStyle : In-earCertification : CEOrigin : Mainland ChinaBrand Name : JINSHENGDAFeatures:OOTDTYProfessional noise-cancelling and sound-isolating earplugs made of environmentally friendly siliconeThe small and soft in-ear design is comfortable to wear,fits the inner ear without foreign body feeling,and effectively blocks- noise;3 layers of sound insulation,environmentally friendly silicone,comfortable to wear;The silicone in-ear earplugs have good ductility,excellent sound insulation effect,soft and comfortable touch-,and no deformation;Soft and comfortable material is more suitable for the human ear,and it will not cause pain- when wearing it -for a long-time.Can be washed with water and can be reused after washing, which is clean, hygienic, safe and environmentally friendly.Specifications:Material: SiliconeColor:White,BlackSuitable:Men and womenWeight:25gPackage Includes:1Pair x Silicone earplugsNote:There could be some slight differences in the color tone of the pictures and the actual item.Please allow 1-2mm differs due to manual measurement, thanks.