1. Bluetooth 3.0 Connection: Bluetooth 3.0 technology provides a wireless connection, the external 34-key full keypad extends your existing keyboard, an operating distance of 10m. NOTE: For Laptop Desktop PC without Bluetooth function, you need a third-party Bluetooth adapter (not included) | 2. High-Capacity Rechargeable Battery: Foloda Bluetooth number pad has a 160mAh lithium rechargeable battery. The Bluetooth numeric keypad is easily recharged through the USB cable. The Bluetooth 4wireless keypad also has the auto sleep function, lower power consumption, reflects energy saving, and humanization of the product. Pressing any key can wake up the keypad within 3 seconds. | 3. Aluminum Design: The bluetooth number pad is constructed of solid and premium aluminum materials for long-lasting use, The ergonomic tilt for comfortable typing and a good look, and slim style appearance ( Only 0.46lb, 5.7*4.4*0.47 inch ), perfectly matches your Macbook, MacBook Air / Pro, iMac, PC, surface pro, laptop or desktop as the side external numeric keypad. | 4.Widely Compatible: This Bluetooth wireless number pad it includes shortcut keys and low profile quiet scissor-switch keys Compatible with Windows, Android, iMac, MacBook Pro, MacBook Air, MacBook, Surface Pro, Samsung Tablet PC Desktop laptop, etc. NOTE: The 10-key is NOT compatible with Chromebook. And the "page up", "page down", "search", "screenshot" and "ins" keys won't work with Mac OS, but other keys and number keys work well | 5. Customer Service: Foloda specialized in Home and try our best to offer the better product and customer service.If you have any quesiton, feel free to contact with us.