The package is the standard, pain-in-the-butt full plastic affair that you can never seem to get open without either cutting yourself or someone nearby. As you can see below, not only is Logitech promising longer battery life with the V450, they've included two Duracell AA's to power your V450, right out of the box. Along with the batteries are the standard manual & driver's CD. The receiver ships inside the package outside the mouse, but Logitech doesn't intend for it to lay loose while you travel, as we'll see in a bit.

The official specs from Logitech's site are a bit on the slim side:

System Requirements

IBM® or compatible PC

• Windows® 98, 2000, Me, or XP
• USB port

Macintosh® system

• Mac® OSX 10.2.8+
• USB port

Package contents

• Logitech® V450 Laser Cordless Mouse for Notebooks 
• 2.4 GHz micro-receiver
• Installation guide
• Logitech® SetPoint™ software CD (for Windows-based PC )
• 2 AA batteries
• 3-year limited warranty 

I'll augment them by providing the following tidbits:

• the V450 is 10cm long by 6cm wide, & weighs 121g when loaded with the batteries
• the V450's transmitter is 4cm long by 1.5cm wide