I have a Roady and a Roady2 and use both on my bike. You'll need headphones with volume control. Also
www.xm411.com has a store where they sell some stuff to make your unit portable - they are their exclusive designs. I have an Armie. It holds the Roady, batteries and antenna in an armband unit. He also sells a fanny pack carrying case. I put the Armie on my handlebars or in my jersey pocket when riding my bike and on my arm when mowing the grass. With the lights turned off the batteries last several hours. Turn off the lights by hitting 2 3 2 and pushing in the round scroll button. You can also make a battery pack from Radio Shack supplies. You need to buy a unit for 8 AA bats and jump the last two slots to make it function with 6, unless you can find a 6 unit pack. I couldn't and didn't want to wait. I use 15 minute rechargeable rayovacs. Using 6 regular batteries may be too much juice. XM411 also sells battery packs and rechargers.