1) 4 denotation usb port with option of version 2.0
2) can be inserted digital equips, as U disk, Mp3, SD
3)Calendar
4)blue back-light
5)3V button cell for Calener,NO, CR2032
6)Material, ABS&PS
Product Size, 11.4*6.5CM
Carton Size 62*37.5*27CM
QTY/CTN 50pcs
GW 12.3KGS