Built-in Music Mini Short Car U Disk Pendrive USB2.0 Short UDP Udisk Chip Flash 16GB 32GB Specification 100% new and high quality MaterialMetal ColorBlack Size15x15x13mm Interface: USB2.0 Speed: read 10Mb/s; write 6Mb/s Memory Storage Capacity :16GB/32GB Features: Mini short car u disk Pendrive USB2.0 short UDP Udisk chip flash 16GB 32GB Tip: There are some music built-in, but after formatting, you can also store other files USB2.0 UDP Udisk chip pendrive flash Package include : 1 x USB Flash Note There is 2-3% difference according to manual measurement. Please check the measurement chart carefully before you buy the item. Please note that slight color difference should be acceptable due to the light and screen.