A. Dual-mode connection - It has stable Bluetooth 5.0 and 2.4G USB connection. You can connect this three-in-one wireless digital keypad via Bluetooth or the 2.4G USB receiver. Whether you connect through the RF USB dongle or Bluetooth 2.4G, this Bluetooth numeric keypad can meet your connection needs. It is a good choice for spreadsheet workers, accountants, and finance professionals. B. Luxurious appearance and lightweight aluminum design - It has an ultra-thin and lightweight design with a stylish and beautiful shape, crafted from sturdy aluminum. With a 15-degree ergonomic tilt angle and advanced silent scissor-switch keys, it provides a comfortable typing experience, being quiet and helping to improve work efficiency. C. Easy to use with multiple devices - It can be paired with up to 3 devices simultaneously. Just press FN + 2.4G/BT1/BT2 to seamlessly switch between the 3 devices. It supports keys such as Num Lock, ESC, Tab, Delete, $, %, etc., and also has shortcut keys like directly opening the computer calculator. This multi-device Bluetooth numeric keypad is suitable for people who work with multiple devices. D. Large-capacity rechargeable battery - It is equipped with a built-in 300mA long-lasting rechargeable battery. This Bluetooth wireless numeric keypad can continuously type for up to 120 hours after a single charge. It has a low-battery indicator and a sleep energy-saving function to reduce energy consumption. Press any key to wake up this Bluetooth 10-key keypad within 3 seconds. It also comes with a charging cable. E. Universal compatibility - The Bluetooth and 2.4G USB wireless connections enable this wireless keyboard to support devices with Bluetooth functionality or those with a USB interface. The dual-mode design is compatible with OS, iOS, Windows, Linux, and Android systems, and can be used with devices such as /8/7 computers, desktops, PCs, laptops, Air, Pro, Mini, etc. It is also suitable for smartphones/tablets like Galaxy, Surface, etc. F. Material: ABS + Aluminum alloy G. Color: Black H. Package contents: - 1 Bluetooth numeric keypad - 1 USB cable - 1 receiver Only the above package contents are included, and no other products are provided. I. Notes: Light reflection and different displays may cause slight differences between the color of the item in the picture and the actual one. The size tolerance is +/- 1 - 3 cm.