K580 Dual Modes Thin and Light Multi-device Wireless Keyboard with Phone Holder 1. Lightweight design, simple and stylish 2. The compact design makes full use of the space, the full-size design of the numeric keypad can reduce arm movement 3. Contains 15 FN shortcut keys, with high efficiency and comfort 4. Multi-screen switching, efficient office, you can connect mobile phones and tablets, you can switch input between two devices at the same time 5. The keyboard comes with a mobile phone card slot, making multitasking more intuitive and convenient 6. Dual-mode connection, stable and reliable, can be connected via Bluetooth2.4GHz and USB wireless receiver, stable and reliable wireless connection within 10 meters 7. Receiver: Available USB port, supports Windows 10 or higher, Windows 8, Windows 7 compatible with Surface 8. Battery type: 2 AAA batteries (excluding batteries) 9. Battery life: 24 months 10. Dimensions: 37.4x14.4x2.1cm 11. Weight: about 558g Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.