Cell Phone Keyboard

A cell phone keyboard applicable for a touch-control smart phone, comprising

• a base configured to be detachably attached to the back of the smart phone;
• and
• a keyboard configured to be wirelessly connected with the smart phone and input data to the smart phone;
• and
• an adjustable arm disposed on the base and configured for connecting the base and the keyboard;
• wherein when the base is attached to the smart phone, the keyboard can adjust a spatial position thereof relative to the smart phone through the adjustable arm.

A cell phone keyboard applicable for a touch-control smart phone, comprising

• a base configured to be detachably attached to the back of the smart phone;
• and
• a keyboard configured to be wirelessly connected with the smart phone and input data to the smart phone, and is adapted for being at least partially hidden to the back of the smart phone in a stacked form;
• and
• an adjustable arm configured to be used for connecting the base and the keyboard, and is disposed on the base and is telescopic relative to the base;
• wherein, the keyboard is rotatably connected to the adjustable arm, so that the keyboard can rotate to adjust a use angle thereof, and the keyboard moves along with the extension and retraction of the adjustable arm, by which the keyboard can move to adjust a distance relative to the base.