4019 u16 products are offered for sale by suppliers on Alibaba.com, of which earbud & in-ear headphones accounts for 1%, non-noise cancelling tws earphones & headphones accounts for 1%, and noise cancelling tws earphones & headphones accounts for 1%.
A wide variety of u16 options are available to you, You can also choose from eco-friendly, u16,As well as from outdoor, home u16, and whether u16 is abs, plastic, or pvc.