Kensington SlimBlade Bluetooth Presenter Mouse for $19.94 Shipped

Kensington K72330US SlimBlade Bluetooth Presenter Mouse (Ice Blue) for $16.99 plus $2.95 shipping, making the total $19.94 shipped.  Here is a screenshot for your reference.  It is a full-featured mouse that can switch to presentation mode with an ultra-thin design to fit a pocket or bag.  This mouse also automatically goes into sleep mode when the notebook does.  Most places have it for about $44.