The removable Bluetooth keyboard leather case makes your tablet transform into a laptop in less than a second. Leather Case Made of skin-friendly PU material, and the back is made of anti-bending acrylic Designed with drop-proof airbags, can effectively protect your tablet Can be changed into a kickstand in seconds, supports multi-angle adjustment, and can be rotated in both directions Supports smart auto wakeupsleep design, which can effectively save power With a built-in pen slot, the stylus pen is easily stored without worrying about losing it stylus pen not included Bluetooth Keyboard Bluetooth 3.0, upward compatible with 5.0 Bluetooth devices Using high-speed chips, connect to Bluetooth devices in seconds The keys are made of water drop round keycaps for comfortable and quiet typing It is charged by a Micro USB cable, and it can be freely carried and used when fully charged Specification Battery material lithium-polymer battery Bluetooth 3.0 upward compatible with 3.04.05.05.1 Bluetooth devices Effective distance 10 meters Standby time gt100 days Continuous working time not less than 100 hours Charging time 2-3 hours Lithium battery capacity 280mAh Lithium battery life 2 years Button life 3 million clicks Modulation method GFSK Working voltage 3.0-4.2V Working current 4-8mA Standby current lt0.3mA Sleep current lt40uA Charging current 100mA normal Charging method Micro USB cable