ltem description from the seller
High-concerned chemical:None;
Material:Plastic;
Category:Earphones & Headphones;
Volume Control:Yes;
Control Button:Yes;
Vocalism Principle:Other;
Wireless Type:None;
Connectors:3.5 MM;
Communication:Wired;
Style:Wired headphone & headset;
Origin:Mainland China;
Brand Name:NoEnName_Null;