The new Slacker V4 wireless display extends Slacker's primary display and button functions so you can always have a remote, regardless of whether you have your phone or not. It can be used in tandem with the Virtual remote for simultaneous, multiple display options or as a dedicated remote for those who just want the basics. Just strap it on the bars with the attached hook and loop strap and turn it on and you are off to the races, or at least making sure the bike is dialed before you do! Only compatible with Slacker V4, requires 2) AAA Batteries- Not Included