✔【WARM TIPS】 -- This Bluetooth number pad is NOT compatible with Chromebook. Due to MAC OS being a special system, the "Calculate", "Numlock", and "00" keys won't work with Mac OS, but other keys and number keys can work well. The USB dongle is only stored in the box, this USB keypad does not have a USB dongle storage area. The wireless number pad will go into auto sleep mode to save power when not in use for 30 minutes. Pressing any key can wake up the 10 key within 3s. | ✔【MULTI-DEVICE & DUAL MODE CONNECTIONS】 -- With dual Bluetooth 5.0 connection and 2.4G USB dongle connection, the bluetooth numeric keypad supports 3 devices, easily switch between 3 devices by pressing FN+2.4G/BT1/BT2. External keypads include ESC, Tab, Delete, $, %, pgup, pgdn, enter, etc, perfect for financial accountants, students, office specialists, and spreadsheet experts. | ✔【STABILITY & SLIM ALUMINUM DESIGN】 -- This stylish Bluetooth numpad is constructed of solid and premium aluminum materials for long-lasting use, the ergonomic tilt and scissor-switch key structure for comfortable typing and good look, slim style appearance (Only 0.36lb, 5.75*4.45*0.43 inch ), perfectly matches your Macbook, MacBook Air / Pro, iMac, PC, surface pro, laptop or desktop as the side external numeric keypad. The life of keys is up to 3 million times. | ✔【HIGH-CAPACITY RECHARGEABLE BATTERY】 -- The bluetooth wireless number pad with rechargeable 300mAh lithium battery. Easily recharged through the included Type-c cable, avoid continuous battery consumption and battery replacement. Full charge in 1.5 hours that lasts up to 120 hours. The compact wireless numeric keypad is great for home, office, traveling, business trips, and more. | ✔【UNIVERSAL COMPATIBILITY】: Widely compatible with Windows 10/8/7, Mac OS, iOS, and Android, and can work with your Macbook, MacBook Air/Pro, iMac, iPad, PC, computer, laptop, or desktop as the side external numeric keypad. What You'll Get: 35-Keys bluetooth numeric keypad, Type-C Charging Cable, USB Receiver, User Manual, 24-month warranty, and friendly customer service.