Bone Horn Bike for iPhone

Bugles are back with a vengeance for sound amplification in recent phone docks, but this we found particularly clever. Bike-mounted iPhones fill in nicely for bike computers (except for cadence), but making calls remains difficult, since you generally can’t hear jack. The added horn in Bone’s mount passively increases volume by 13 db, so dial away or just blast out your iTunes playlist. Straps on virtually any bike crossbar, at any angle.

Check out their website to locate a reseller, or order online at Amazon – 10-20$.