For Samsung Galaxy Tab S7 FE/S7+/S8+ Wireless Bluetooth Keyboard + PU Leather Tablet Case with Pen Slot - Black 2-in-1 Tablet Bluetooth keyboard + PU,TPU protective case,convenient for a business trip The Bluetooth 3.0 keyboard has a stable connection,a long-lasting lifetime The keyboard has a built-in 280mAh large-capacity lithium battery,convenient to charge and use Can be converted to a supporting stand for hands-free movie watching and web surfing There is a slot to place your pencil device,don't worry about losing it (Not Included Pencil) Slim and lightweight design,convenient for travel,business trip,etc. Compatible with Samsung Galaxy Tab S7 FE (Model SM-T730/T733/T736/T738)/S7 Plus (Model SM-T730/T733/T736/T738)/S8+/S7 Plus/S8+(Model SM-T730/T733/T736/T738) Specifications: Battery material: lithium polymer battery Bluetooth: Bluetooth 3.0 (upward compatible with 3.0/4.0/5.0/5.1 Bluetooth devices) Effective distance: 10 meters Standby time: 100 days Continuous working time: not less than 100 hours Charging time: 2-3 hours Li-ion 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: