【2 in 1 Functional Design】 Combines a Bluetooth-compatible keyboard with a PU + TPU tablet case, offering protection and functionality in one compact design 【Durable Bluetooth-compatible Keyboard】 Equipped with Bluetooth-compatible 3.0 technology, the keyboard features long-lasting button life and reliable performance for everyday use 【Built-in Rechargeable Battery】 Comes with a built-in 200mAh lithium battery, making it convenient to charge and use for extended periods without frequent recharging 【Multi-Angle Supporting Stand】 Easily converts into a sturdy stand, allowing hands-free viewing for watching movies, browsing the web, or working on the go 【Dedicated Pencil Slot】 Includes a slot to securely hold your pencil device, ensuring it stays in place and is always within reach (pencil not included) 【Slim and Lightweight Design】 Ultra-slim and lightweight, perfect for travel, business trips, or daily commutes, offering portability without compromising on protection or functionality Specifications: Bluetooth-compatible: 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℃