Features1. Supports horizontal and vertical screen switching, easy to use.2. Touchpad design, responsive and precise control.3. Colorful backlit keyboard, you can switch colors at will, full of atmosphere.4. The detachable keyboard can connect up to three devices at the same time and can be switched for use.5. Built-in large-capacity lithium battery, the working time of turning on the light is about 4~6 hours, and the working time of turning off the light is about 200 hours.Parameters1. Working voltage: 3.0V~4.2V2. Working current: less than or equal to 3.0mA3. Working hours: greater than or equal to 80 hours4. Low battery alarm: 3.0-3.3V5. Sleep current: less than or equal to 0.3mA6. Standby time: greater than or equal to 100 days7. Battery capacity: about 250mAh8. Button strength: 50g-70g9. Button life: 3 million times10. Charging input: 5V/500mA11. Connection distance: 10m12. Charging time: 2~3 hours13. Charging