Familiar Number Configuration for Efficiency: Forget hunting through a full row of numbers on no numpad keyboards. This keypad is a must-have for those who needs intense data input but is not used to typing with that kind of keyboards. | Portable and Sturdy: Type wherever you like thanks to the slim and portable design (195g weight; 143mm*118mm*14mm). It also built with the high quality of ABS material that keeps it from falling and scratching. | Backlit Keys for Any Lighting Environment: The keyboard with 7 colors and 3 levels of brightness allow you to type day or night. The backlit shortcut keys (“Esc” + the arrow keys) allow you to manually adjust the color and brightness of the keys. | Reliable 5.0 Bluetooth Connection: The strong and secure Bluetooth connection allows you to work efficiently with a 10m range. You only need to press “CONNECT” button to enter Bluetooth pairing mode. | Long Lasting Rechargeable Battery: It can work up to 220 hours without backlighting thanks to auto-sleep power saving mode and an/off switch button. Note: The battery life may vary based on use and computing conditions. | Wide Compatibility: The keypad is compatible with both Windows and mackbook devices. Please configure the keypad to the corresponding operating system after paring it.