USB HUB with Mini Keyboard Calculator

Features: 
1) USB mini Keyboard Calculator with USB HUB 
2) Product dimensions: 135 x 79 x 14mm 
3) LCD display with Solar board
4) 12-digit pattern display
5) USB 1.1 HUB (3 ports), 1.1 jack built-in
6) Calculator or PC Keyboard conversion optional, memory and currency exchange
7) Sleep function without operation for 5 minutes (except when USB connected with computer)
8) 1 x AG13, two ways of power supply (AG13 and solar), 1.5V super low power consumption
9) Operating system required: above Microsoft windows ME
10) USB 2.0 HUB is optional

Packing:
Gift box