We at GROOVE GROUP have more than 400 headphones and earphones for your selection. And more than this, we add 15 new models monthly to update the extensive collection. This is achieved by our 10 R&D engineers, who have four years of experience in this field. In business since 1996, we have the experience needed to know exactly you're looking for. We can finish a 3-D drawing in just seven days and complete a sample in 15 days upon your confirmation