[Compatibility] This case is compatible with Samsung Galaxy Tab S9 FE 5G 10.9 inch (Model SM-X510/X516B/X518U), Samsung Galaxy Tab S9 11 inch (Model SM-X710/X716B/X718U) 2023 Release tablet. It will NOT work for any other model device [High-Precision Trackpad] Built-in touchpad with Control of Pointing Feature, makes it great for turning on APPs, clicking, sliding up/down, zooming in/out and viewing [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 sleep/wake function by CASE ONLY mode [Turn Your Tablet into A Laptop] Real hard laptop style keyboard with high end ABS material. Not cheap silicone keyboard as other cases in market. A spring mechanism underneath each key ensures a tactile response with every stroke, helping you to type faster and with less error than on a touchscreen Specifications: Bluetooth version: Bluetooth 3.0 (upward compatible with Bluetooth devices 3.0/4.0/5.0/5.1) 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: