Product name： Electronics - Accessorize your customers’ music listening coolness with these assorted-color MP3 players. Six colors to match their daily wardrobe - silver, black, green, pink, blue, and orange. And with 1/2/4GB of memory, they won’t lose a beat or be out of fashion. It’s also compatible with most operating systems. Product Features： --Capacity: 1/2/4GB --Memory: NAND flash memory --Audio formats supported: MP3 --USB flash drive --Li-ion rechargeable battery --USB interface: USB 2.0 --Operating system: Windows 98 SE/ME/2000/XP/Vista, MAC OS --Product size: 4.1 x 2.7x 1.1cm --Transparent box size: 10.3 x 5.4 x 4.2cm --Warranty period: Six months --In retail packaging Standard Certification: CE FCC Package Included： ◆ 1 x Mp3 Player ◆ 1 x USB Cable ◆ 1 x MEIZU PT850 HIGH quality earphone (retail sale 9.9 USD) ◆ 1 x English manual ◆ 1 x Crystal box