Here is a great gift for the GMail addicts this holiday season. It is the Gboard Gmail Shortcut Keyboard which comes in a compact body that measures 4.88 X 3.5 X .38 in / 130 X 88 X 9 mm and weighs a mere 0.14 kg. It is the first mini keyboard dedicated to Gmail uses and features 19 finger-friendly shortcut buttons which will memorize those shortcuts difficult for you.
It uses a USB interface and has a LED light that indicates connectivity. The device requires no additional software or installation to work, Outside of Gmail they simply act as normal keyboard buttons, and will type in whatever letter or number corresponds with that shortcut. It is priced at $19.99 plus tax