FNP-715
Features:

. Plug & play
. Calculator mobile mini keyboard
. Makes the calculation process more easily and more convenient
. Use the keypad & inputting characters from a notebook at the same time

Specifications:

. Interface connector: USB
. Operation force: 60+/-15 gm
. Total travel: 2.1 mm
. Battery type: A13 (LR44) battery
. Dimensions: 116(L) × 88(W) × 19(H) mm
. System requirements: Windows 98/ ME/ 2000/ XP/ Vista