Design for the Samsung Tab S9 FE Plus 12.4" Detachable Touchpad Bluetooth Keyboard Charging, 80H Working Time, Tablet Leather Cover, Arabic/English Layout, Black: DUX DUCIS [DK] Series Keyboard Case Bluetooth Vversion: 5.0 is the specification. Operating Range: ≤10 meters USB-C is the charging port. Materials: TPU and PU leather -10 to 55°C is the operating temperature. 3.0–4.2V is the working voltage. Time Spent Charging: 2 to 3 hours Battery Capacity: 280–420mAh Charging Current: <200m Time on Standby: roughly 120 days Constant