MP3 player Certificate: Rohs, FCC, CE Guarantee period: 2 years High quality ... really 2.0 high speed 3.can use as MP3 player and U disk. 4.soft glue matrial crust,randomicity design ... power supply 6.up to Win98 has no use for driver Capacities256MB,512MB,1GB,2GB,4GB,8GB,16GBOperating Temperatures320 F to ... indicates power and busy,read / writeShock Resistance1000GMQQ100pcs New style MP3 player