DUX DUCIS VK Series Multi-Functional Detachable Wireless Keyboard & Tablet Case 1. Multi-functional detachable design: stand, keyboard, and protective case all in one. 2. Built-in 1-inch display screen for clear visibility of various working statuses. 3. Multi-touch panel with various control gestures for easy switching. 4. Colorful keyboard backlight with alternating brightness levels. 5. Built-in strong magnet for easy disassembly and intelligent sleepwake-up functionality. 6. Multiple split modes to suit your needs. 7. Bluetooth 5.0 chip for fast transmission and lag-free typing. 8. Built-in lithium battery for fast charging and long standby time. Product Parameters 1. Material: PC+TPU+Aluminum Alloy 2. Bluetooth Version: 5.0 3. Operating Distance: about 10m 4. Modulation System: GFSK 5. Battery: 500mAh Lithium Battery 6. Charging Time: 3.5 hours 7. Operating Voltage: 3.3-4.2V 8. Charging Current: 300mA 9. Continuous working time: Less than 8 hours (backlight on), less than 320 hours (backlight off) 10. Standby time: about 60 days (full charge)