The removable Bluetooth keyboard leather case transforms your tablet into a laptop in seconds. Made from skin-friendly PU leather material, the case features a durable acrylic back designed to resist bending. Integrated drop-proof airbags provide effective protection for your device. The built-in kickstand allows quick setup with multi-angle adjustment and 360-degree rotation support. Smart auto wake/sleep function helps conserve power. Includes a built-in pen slot for convenient stylus storage (stylus not included). Bluetooth Keyboard features Bluetooth 3.0 technology, backward and forward compatible with Bluetooth 5.0 devices. Equipped with high-speed chips for fast pairing within seconds. Waterdrop-shaped round keycaps offer comfortable, quiet typing experience. Powered by a built-in rechargeable lithium-polymer battery, charged via Micro USB cable for portability and convenience. Specifications: - Battery material: Lithium-polymer - Bluetooth version: 3.0, compatible with 3.0/4.0/5.0/5.1 - Effective operating distance: Up to 10 meters - Standby time: Over 100 days - Continuous working time: At least 100 hours - Charging time: 2–3 hours - Battery capacity: 280mAh - Battery lifespan: Up to 2 years - Key switch life: 3 million clicks - Modulation method: GFSK - Working voltage: 3.0–4.2V - Working current: 4–8mA - Standby current: Less than 0.3mA - Sleep current: Less than 40uA - Charging current: 100mA (normal) - Charging method: Micro USB cable