The Macally BTSOLARKEYSG is a stylish Bluetooth solar keyboard, especially designed for Mac. It has 110 full size, thin and quiet Scissor-Key-Switch keycaps for a sensitive and responsive touch. It also has 21 convenient preset shortcut keys for one-touch control of Mac applications and a 17-key numeric keypad to quickly and efficiently enter long sequences of numbers. The built-in solar panel constantly charges internal Li-ion battery under any indoor or outdoor light.