★【Slim Aluminum Design & Ergonomic Tilt】:The Wireless Number Pad is made of solid and premium aluminum materials for long-lasting use. The ergonomic tilt ,comfortable typing precise control, good resilience fast response for comfortable typing and good look, slim style appearance ,only 0.45lb, 5.6*4.3*0.46 inch. | ★【Built-in High-Capacity Rechargeable and safe lithium polymer battery】The number keypad built-in two high-capacity lithium batteries with 110mAh, the standby time of the keypad is up to 45 hours when fully charged. Auto sleep function, the bluetooth number pad will go into sleep mode auto to save power and energy when not in use.Press any key can wake up the keypad within 3 seconds.(One Micro USB charging cable will come with the keypad）. | ★【Wireless Bluetooth 3.0 Connection】: Using the advanced Bluetooth 3.0 chip, strong Anti-interference ability make the numeric keypad is very easy to pair with your computer, provides you a fast and stable wireless technology lifestyle.【Tip: For Laptop Desktop PC without Bluetooth function, you need to use third-party Bluetooth adapter (not included) before use 】 | ★【Widely Compatible】: The number pad includes commonly used shortcuts，widely compatible with Mac OS 10.0 above, IOS 9.2 and above, Window 7/ 8/ 10 above, Android, works with your iMac, MacBook Air, MacBook Pro, MacBook Mac Mini( Also compatible with the Bluetooth-enabled notebook,laptop and smartphones with Windows 10/ 8/ 7 ). | ★【 NOTE】1. Due to MAC OS is special system, the "page up", "page down", "search", "screenshot", and "ins" key won't work with Mac 2.calculator key need to manually open the calculator program on iMac and MacBook ,then input the number on keypad to run the calculatfunction. Every HoRiMe Bluetooth number pad will go through a strict quality test process before sending out, as we promised to bring the best quality Bluetooth keypad to our customer. Best Gift for Thanksgiving Day,Christmas,New Year.