2-in-1 Design This versatile case combines a Bluetooth keyboard with a durable PU+TPU tablet case for complete protection and functionality Built-in Rechargeable Battery The Bluetooth 3.0 keyboard includes a built-in 200mAh lithium battery, offering convenient charging and long-lasting use Touchpad Function The integrated touchpad allows multi-gesture controls that easily achieve all the functions Adjustable Stand The case can be converted into a supporting stand, allowing for hands-free movie watching, web surfing, or typing Stylus Pen Slot Features a dedicated slot to securely store your stylus device, preventing loss (Stylus not included) Slim & Lightweight With its slim and lightweight design, this case is perfect for travel, business trips, and everyday use Specifications: Bluetooth: 3.0 standard interface Effective operating distance: 10 meters Modulation mode: GFSK Working voltage: 3.0-4.2V Working current: <2.5mA Standby current: <0.3mA Sleep current: <40uA Charging current: >200mA Standby time: >100 days Charging time: 3-4 hours Lithium battery capacity: 200mAh Continuous working time: 100 hours Li-ion battery life: 3 years Key force: 80 ±10g Key life: 5 million clicks Operating temperature: -10℃ to 55℃ Touchpad: Yes