DUX DUCIS OK Mini Series Portable Multi-Functional Mini Keyboard Case 1. Multifunctional mini keyboard leather case, lightweight and portable, frees up space, can be easily put into a wallet or pocket. 2. Carry it with you without burden, can be used as a comfortable stand, suitable for business trips, meetings, writing in cafes and other scenarios. 3. Can connect 2 devices at the same time, support one-key quick switching, no need for repeated pairing. 4. Ultra-thin keyboard layout, comfortable input experience, precise rebound design, sensitive response, no delay. 5. Built-in rechargeable lithium battery, Type-C fast charging, long-lasting battery life, no need for frequent charging. 6. Pure vegan leather shell, soft and delicate, dirt-resistant and easy to clean, soft velvet lining, increased friction, protect the device from scratches. 7. Support smart shortcut key combination, one-key multimedia control (brightness, volume, screenshot), improve workflow efficiency. Parameters 1. Product material: PU leather + PC 2. Connection method: Bluetooth connection 3. Operating distance: 10m 4. Battery capacity: about 180mAh 5. Charging interface: Type-C 6. Charging time: 2-3H 7. Continuous working time: greater than or equal to 80H 8. Working voltage: 3-4.2V 9. Charging current: 150mA 10. Working temperature: -10 to 55 degrees Celsius