Compatibility This case is compatible with Samsung GalaxyTab S9 FE 5G 10.9 inch Model SM-X510X516BX518U, Samsung Galaxy Tab S9 11 inch Model SM-X710X716BX718U 2023 Release tablet. It will not work for any other model device Multiple Viewing Angles The removable keyboard is used as part of the stand for the tablet. Support 3 viewing angles and built in anti-slip grooves. Move the keyboard forward or backward along the cover of the case, you can adjust the angle of the tablet to your preference Dual Protection Durable PU leather cover and anti-slip rubber-lined interior provide full protection for your tablet. Soft flexible TPU back shell protect for Samsung Tab from shocks, drops and impacts. Support auto sleepwake function by CASE ONLY mode Specifications Bluetooth version Bluetooth 3.0 upward compatible with Bluetooth devices 3.04.05.05.1 Effective distance 10 meters Standby time 100 days Continuous working time not less than 100 hours Charging time 2-3 hours Battery type lithium polymer battery Lithium battery capacity 280mAh Lithium battery life 2 years Key life 3 million clicks Modulation mode GFSK Operating voltage 3.0-4.2V Operating current 4-8mA Standby current Sleep current Charging current 100mA normal Material Keyboard cover PUTPU, Keyboard ABS