1. Clear sound with deep and enhanced bass for good listening earphone 2. Soft silicon earbuds offering comportable wearing 3. Perfect suitable for iPod/ipad/iphone ,mp3/4/5 players,Cellphones ,speaker,PC/computers 4. Directly factory price with logo and package deisgn service 5. Customers Logo printing is acceptable .suitable for promotional earphone 6. Customers pantone color is acceptable .Colorful earphone for your choice 7. CE, ROHS.RECH .FCC Certeficates.