The Bluetooth keyboard case is not only a keyboard but also a case, convenient for a business trip? The keyboard has a built-in 150mAh lithium battery, convenient to charge and use Adjustable kickstand for hands-free movie watching and web surfing Wireless mouse perfect to fit your hands, providing a comfortable user experience With a pen slot, more convenient for storage and use (Pen is not included) Slim and lightweight design, convenient for travel, business trip, etc.? Suitable for Samsung Galaxy Fold/Z Fold series cell phones? Specifications: Interface: Standard MICR interface Link distance: Effective operation within a range of 10 meters Modulation method: GFSK Working voltage: 3.0-5.0V Working current: Standby current: Sleeping current: Charging current: ≥100MA Standby time: >60 days Charging time: 2-3 hours Lithium battery capacity: 150mAh Working time: Up to 150 hours Lithium battery life: 1 year Key strength: 80±10g Key life: 3 million clicks Operating temperature: -10℃ to +55℃ Bluetooth: 3.0 YICHIP Weight: 366g Thickness: 14mm