silicone earphones 1,100% Silicone 2,Size:Free; colorful 3,For Bluetooth with waterproof 4,Certificate:RoHS, ISO9001 Specifications:1.Material:Made of 100% grade silicone with FDA and SGS approval2.Non-toxic,smooth,dirt resistant 3.Filed with SGS, ISO9001,ROHS standard4,Bowl shape to fit the ear canal comfortably for decreasing noise 5, We can do no matter what color you would like.6, OEM & ODM ...