Crystal transparent hard acrylic shell back cover will show your original tablets beauty The magnetic Bluetooth wireless keyboard is removable and moveable, easy to put the tablet and keyboard in a comfortable position 720 degrees rotating swivel allows the iPad to rotate both flexible vertically and horizontally while in the case Supports the auto sleep function, which can effectively save power Keyboard with a trackpad can navigate and control the cursor like a laptop The Bluetooth keyboard adopts a BT 5.0 high-speed chip, which can connect to Bluetooth devices in seconds With a pen slot for storage, you are not afraid of losing your pencil NOT included Supports backlight, it providing you with a comfortable typing experience and cool visual enjoyment, even in the dark Specifications Working voltage 3.0V-4.2V Working current le3.0mA Working time ge4 hours backlight on Sleep current le0.3mA Standby duration ge120 days Battery capacity le500mAh Battery life 3 years Key life 2 million times Key strength 50g-70g Connection distance le10m Charging input 5V 1A Charging current le200mA Charging time 2-3 hours Charging interface Type-C interface Wake-up time 2-3 seconds Operating temperature -10 to 55