$44.87
Features:
KM17 computer numeric keypad, easy and fast to enter, improve work efficiency.
When USB cable not used it is a calculator; when USB cable used it is a mechanical keyboard numeric keypad
The backlighting automatically sleep two minutes later to enter the power-saving.
hot-swappable, easy to replace the mechanical body and keycaps.
Small size and lightweight, USB connection, suitable for a variety of computer equipment
Waterproof,easy to ; comfortable keys, quiet and not interferences.

Specifications:
Model:KM17
Size:about 96x143x20mm/3.78×5.63×0.79in
Color: Optional
Connection: USB
Battery:500mAh
Keys:17
: Waterproof And Hot Swappable

note:
Please allow 1-3mm error due to manual measurement.Please make sure do not mind before bid.
The color may have different as the differences display,please understand.

Package Includes:
1PC KM17 Small Keypad

KM17 computer numeric keypad, easy and fast to enter, improve work efficiency.
When USB cable not used it is a calculator; when USB cable used it is a mechanical keyboard numeric keypad
The backlighting automatically sleep two minutes later to enter the power-saving.
hot-swappable, easy to replace the mechanical body and keycaps.
Small size and lightweight, USB connection, suitable for a variety of computer equipment