Riding your bike on a daily basis can be lots of fun, but you need to invest in proper safety lights to stay out of trouble. SIX is a gesture-controlled bike signal light that helps you avoid nighttime accidents. The device pairs with your Android Wear device or Myo armband. Its app detects when you slow down to activate the brake light.
SIX is currently getting funded on Kickstarter. You will have to wait a few months to get your hands on one though.