1. Ultra-thin keyboard with numeric keypad. All keys of the wireless keyboard adopt the crater structure; this makes it responsive. You can use the numeric keyboard for quick input and data entry without digital input problems. 2. The connection is stable and the installation is convenient. The wireless keyboard adopts the latest wireless solution chipset, the data transmission within 33 feet is more stable, and the -interference ability is stronger. need a USB receiver connection to use, no need to download the driver 3. Convenient and fast operation-instant access to your music, internet, , volume, etc. via multimedia shortcut keys. It is suitable for desktops, laptops and other devices. Compatible with Windows system. 4. Long battery life. The compact keyboard goes to sleep within 8 minutes without typing, and can work for more than 90 days (normal use every day). The package contains 2 AA alkaline batteries. 5. Wireless ergonomic keyboard layout, suitable for PC TV, Mac home office game players and other devices with USB interface. Product parameter Product weight: 458g Keyboard size 43.7x13.8x2.1cm size 10x5.5x3.5cm Product contains 1* keyboard 1* 1* USB receiver (without battery)