Be Note:
1. Calculator Launch Button Not Work with Mac & OS X system.
2. Press "Num Lock" key to swtiching between Numbers and Directional Arrows.

Aerb portable 2.4G wireless USB numeric keypad features plug-and-play， which makes it very easy to use. The 23 high quality pillow keycaps are durable， responsive， and very comfortable to type.

Features:
Size: 138*80*18mm
Effective Range: 10M (MAX)
Operating frequency: 2.4 GHz
Powered by One AAA Battery (not included)
System requirements: MAC OS X， Windows XP， Vista， 7， 8，10 2000 with USB Port

Package Contents:
1 * Wireless Numberic Keypad
1 * Nano Receiver
1 * User Manual