[Support 3 System & Full Shortcut Keys]The magnetic wireless keyboard can be removed from the case freely. Compatible with iOS, Android, Windows. Just press Fn and corresponding keys(QWE) to change the keyboard system. Hot keys customized for iPads, Full Shortcut Keys give you a more efficient way to use your keyboard. [Long Life Battery]2-3 hours full charge, work for more than 80 hours, stand by for 130 days. It even enters into sleep mode automatically if not in use for 15 minutes. Just Press any key to wake up.  Mechanical scissors keyboard, quick rebound, press smoothly. [Heat Dissipation]Honeycomb grid design on the back of the tablet case, prevent for iPad from overheating and extend its service life by more than 30%.   The durable PU leather cover comes with a safety magnetic buckle to protect your iPad from all aspects, and non-slip rubber lining provide full protection for your tablet with strong anti-slip performance, providing more stable support for your iPad from multiple angles. [Stable Bluetooth-compatible Connection]The Bluetooth-compatible keyboard adopts a high-speed chip, which can connect to Bluetooth-compatible devices in seconds. Specifications: Material: TPU+PU Bluetooth-compatible Version: 5.0 Effective Operating Range: 10 meters Modulation: GFSK Operating Voltage: 3.7-4.0V Operating Current: <8mA Standby Current: <0.3mA Sleep Current: <50uA Charging Current: >200mA Standby Time: >100 days Charging Time: 2-3 hours Lithium Battery Capacity: 200mAh Continuous Operating Time: Minimum 30 hours Lithium Battery Life: 3 years Key Force: 80-±10g Key Lifespan: 5 million clicks Operating Temperature: -10 to +55℃ Charging Port: TYPE-C