For in-store pickup only, Best Buy offers the HP X4000 Wireless Bluetooth Laser Mouse
, model no. H3T50UT#ABA, for $19.99
. That's $9 under the lowest total price we could find elsewhere. Sales tax is added where applicable. It features a 1600 dpi laser sensor and includes two AA batteries.
Note that this mouse doesn't come with a Bluetooth dongle; you'll need Bluetooth on your system (via built-in or dongle) for it to connect.