• Multi-System Compatibility: Supports iOS, Android, and Windows systems. Easily switch between systems by pressing Fn and corresponding keys (QWE). • Full Shortcut Keys: Customized hot keys for iPads provide efficient operation, enhancing productivity and user experience. • Long-lasting Battery: Powerful 150mAh lithium polymer battery offers over 80 hours of continuous work and 100 days of standby time on a single 2-3 hour charge. • Energy-Saving Design: Automatically enters sleep mode after 15 minutes of inactivity, easily awakened by pressing any key. • Durable Construction: PU leather cover with magnetic buckle and non-slip rubber lining provides comprehensive protection and stable multi-angle support for iPad. • Comfortable Typing: Mechanical scissors keyboard design ensures quick rebound and smooth key presses for a superior typing experience. Specifications: • Battery type: Lithium polymer battery • Bluetooth-compatible version: 3.0 (upward compatible with 3.0/4.0/5.0/5.1 Bluetooth-compatible devices) • Effective distance: 10 meters • Standby time: 100 days • Continuous working time: Not less than 80 hours • Charging time: 2-3 hours • Lithium battery capacity: 150mAh • Lithium battery life: 2 years • Key life: 3 million clicks • Modulation mode: GFSK • Working voltage: 3.0-4.2V • Working current: 4-8mA • Charging current: 100mA (normal) • Material: Protective case: PU+TPU, Keyboard: ABS Package included: • 1 x Keyboard • 1 x Leather Case • 1 x Charging Cable • 1 x English Instruction Manual