This really depend on the type of marketing you intent to engage in.  We recommend a variety of beacons in any Marketing campaign.  The personal beacons allow friends, family, and employees all to be part of your Marketing team.  They are working your campaign even after hours 24/7.  Some ideas:

Place a blaster (150 ft plus) in your car window, so where every you go, everyone with an Android phone can get your message.

Take a personal key-chain beacon to the football game.

Place one in high traffic areas.