【Premium Materials】The case with keyboard is made of PU leather and hard PC that gives you a comfortable touch, scratch resistant and easy to clean 【Strong Magnetic Core】The back panel has a strong magnetic attraction, keeping your device stable and secure 【Adjustable Angle】The back panel can be rotated back and forth freely, providing a comfortable viewing angle 【Aluminum Alloy Shaft】Built with an aluminum alloy shaft that can withstand multiple openings and closings, ensuring durability 【Touch Control Board】Includes a responsive touch control board for precise navigation and control 【Key Backlight】Features a key backlight, enabling easy typing in low-light conditions 【Lightweight and Portable】Designed to be lightweight and portable, making it easy to carry and use anywhere Specifications: Operating Voltage 3.0 - 4.2V Number of keys: 64 keys Continuous working time: ≥5 hours Working current 85-120mA Standby current: 1mA Low battery alarm: 3.0 - 3.3V Battery capacity: 500mAh ?Standby time: ≤150 days Button life: 3 million times Battery life: 3 years Connection distance: ≤10m Key force: 50 - 70g Charging current: 250mA Charging interface: Type-C USB Wake-up time: 2 - 3 seconds Charging time: 2 - 3 hours Random password: None Working temperature: -10 - 55℃