【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 【Backlight Design】The Bluetooth keyboard is designed with color backlight, more beautiful and delicate 【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) Specifications: Product Size: 25.3 x 18.4 x 2.2cm Bluetooth: 3.0 standard interface Effective operating distance: 10 meters Modulation method: GFSK Operating voltage: 3.0-4.2V Operating 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 Sustainable working time: 100 hours Lithium battery lifespan: 3 years Key force: 80 ±10g Key lifespan: 5 million clicks Operating temperature: -10℃ to +55℃ Touchpad: Yes Backlit: Yes