The pocket-size MK10 Mini Keyboard, measuring 4.5" x 2.25" x 0.375", is a customized Bluetooth device offered by Avidyne specifically for the IFD540 and IFD440. The MK10 lets pilots wirelessly enter flight plans and waypoints, execute "Direct TO" operations, change Pages and Tabs, and zoom the Map range in and out, among other things.