Select from options: Continue writing the next sentence.

How to choose a magellan navigation system
Think of whether you find yourself using gps infrequently.
Use of an available magellan roadmate navigation smart-or i-phone app, in some cases, is the only system you need in that case.
You receive all of the same features of the roadmate navigation system through the roadmate app, without the need to carry a separate gps unit.

Pick from:
1). The app is designed, though, to give you lots of wireless reception. Examine outdoor navigation systems for the mmorps in your region..
2). The problem, however, occurs if your use of the phone frequently interrupts the gps operation. That and other uses may be reason enough to purchase a magellan gps unit..
3). Inspect the location of the public highway. For this you will be purchasing an iphone or other mode of transportation..
4). These include flashing red and blue indicators on either side of a windshield. Magellan has its own gps system...
Answer:
2).