【2-in-1 Design】 This versatile product combines a high-quality ABS Bluetooth keyboard with a PU leather tablet case, offering both protection and functionality 【Built-in Bluetooth Keyboard】 The Bluetooth 3.0 keyboard features a built-in lithium battery, allowing for easy charging and reliable, long-lasting use without the hassle of frequent battery replacements 【Convertible Stand Feature】 The case easily transforms into a stand for hands-free movie watching, browsing, or video chatting, providing a comfortable and stable viewing angle for your device 【Pencil Holder Slot】 A practical slot at the back of the case is designed to securely hold your pencil (note: pencil is not included), keeping it within easy reach and preventing loss 【Slim and Lightweight】 Designed to be compact and lightweight, this case is perfect for on-the-go use, offering excellent portability for travel, business trips, and everyday use Specifications: Standard Bluetooth: 3.0 interface Working distance: within 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 Li-ion battery capacity: 150mAh Sustainable working time: > 60 hours Battery life: 3 years Key force: 80±10g Key life: 5 million clicks Working temperature: -10-+55℃ Material: PU+ABS