1. Material: ABS2. 10 meters valid3. Comes with receiver4. Interface: USB5. Number of keys: 18 keys6. Applicable models: general7. Compatible with multiple operating systems8. Smart sleep, power saving and environmental protection9. Fashionable and thin, compact and portable10. Round keycap design, comfortable and durable11. Suitable for accounting, banking, securities use12. Use a AAA battery (not included in delivery)13. Multi-function buttons, no switching, intelligent power saving14. Weight: 74g

http://olla.gr/mini-2.4g-wireless-numeric-keypad-white/