Review the dimensions, color and other physical and visible characteristics of the handheld vacuum.
If the handheld vacuum is cord-less (or corded) and if so what it's run and recharge times are.
Additonal cleaning characterstics of the handheld vacuum including its filter, cyclonic action and if it is rated for use in homes with pets.
Nozzles, cleaning heads, brushes and other accessories included with the handheld vacuum.
The manufacturer warranty and certifications for the vacuum.