... battery life: 3 years 14. Lithium battery size: 40 × 20 × 35MM 15. Key strength: 80 ± 10g 16. Key life up to ... file by default. Mainly used for multimedia operations within ipad. Keyboard Layout: Command + Space combination switch. home: ipad main interface to ... operating voltage, the power light starts blinking, indicating that the keyboard should be charged. First, the machine is equipped with a ...