Bluetooth number pad is constructed of solid and premium materials for long-lasting use, the ergonomic tilt for comfortable typing and good look, slim style appearance, perfectly matches your for Macbook, for MacBook Air/Pro, for iMac, PC, for surface pro, laptop or desktop as the side external numeric keypad. The Bluetooth numeric keypad is easily recharged, no need to change the battery and user-friendly. The Bluetooth wireless keypad also has the auto sleep function, lower power consumption, reflect energy saving and humanization of the product. This Bluetooth wireless number pad it includes shortcut keys and low profile quiet scissor-switch keys so you can work comfortably on your computer or laptop. Compatible with for Windows, for Android, for iMac, for MacBook Pro, for MacBook Air, for MacBook, for Surface Pro, for Tablet PC Desktop laptop, etc. Power Supply:1 x CR2032 Button Cell 3V(Not included batteries) Colour:Black Material:Plastic Package Contents: 1 * Bluetooth Keypad Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.