Bluedio is a professional audio device firm with over 20 years of experience that combines development, manufacturing, and marketing. They are committed to producing more fabulous products for music fans. Their headphones are made from the finest quality materials and rigorously tested to ensure durability, comfort, and performance under harsh situations. You will notice a contrast when you hear your favorite tune with your headphones. Their product line includes stereo, wireless headphones, portable speakers, earbuds, and microphones.