How to use a phone armband efficiently

I just thought about ways on how a phone armband can be of great use. Anybody can literally use this, but most especially the following people:
1) Runner - Hey, who wants to run alone on boring roads or places you know nothing about? This has a slot for your earphone cable so you can listen to your favorite songs while jogging. Just make sure not to put in on too loud so you'll be able to here the sounds of beeping cars. You don't want to run into accidents.
2) Gym rats - Like with the runners purpose, you can use this to listen to music to keep you upbeat, or probably talk to your pals while your busy burning fats. Just make sure you focus on your gym equipments first before using your touchscreen because you don't want to fall on your treadmill!
3) Homemakers - Yes. This could  be useful especially when your hands are full and/but you need your phone near you, always. You don't want to miss important calls. And you don't want to misplace your phone after doing a lot of household chores. With this, you can get hold of your phone in an instant. This is also great because I use this while carrying my little one, wiping the table, while talking to my husband over the phone. You can do a lot with your phone within your reach.

How about you, in what ways do you think you can use an armband?

DISCLOSURE

I received a sample of the product mentioned above in exchange for my unbiased opinion.