Most GPS units differ based on the addition features they have such as the ability to play mp3's or access the web. At the most basic level, a hand held GPS is no better or worse than other models for providing your location.
The benefits of purchasing a hand held GPS unit over a standard is that the hand held version is extremely portable and does not require to be plugged in. Also these units can also be used for walking navigation and not just driving in a car.
http://en.wikipedia.org/wiki/Two-way_radio
Hand drills are hand held and so have less torque than drill presses. Drill presses are generally better for drilling very hard materials,or for drilling multiple holes by using a jig.
Hand Held Products was created in 1999.
when was the first hand held organizer made
who invited the first hand-held camera?
a hand
where was the hand held blow dryer invented
A PDA or any computer small enough to be held in one hand (most smart phones now classify as hand held computers).
held at. cause is were it is not in.
Many mixers come with different attachments such as bread hooks and meat grinding feeders. These mixers are almost always static units that are not designed to be hand held.
Originally by hand, then by hand held machines.