The Bluetooth-compatible keyboard case is not only a keyboard but also a tablet case, convenient for a business trip The Bluetooth-compatible 5.0 keyboard has a stable connection, a long-lasting lifetime The keyboard has a built-in 250mAh large-capacity lithium battery, convenient to charge and use Can be converted to a supporting stand for hands-free movie watching and web surfing Designed with a Touchpad instead of the mouse, which is wireless and portable to? use? Slim and lightweight design, convenient for travel, business trip, etc.? Add automatic voice input recognition button Specifications: Standard Bluetooth-compatible 5.0 interface Working distance: within 10 meters Modulation mode: GFSK Working voltage: 3.0-4.2V Working current: Standby current: Sleep current: Charging current: > 200mA Standby time: > 100 days Charging time: 3-4 hours Li-ion battery capacity: 250mAh? Sustainable working time: > 60 hours Battery life: 3 years Key force: 80±10g Key life: 5 million clicks Operating temperature: -10℃-+55℃ Charging method: Type-C