Ever been to a show and you thought you could do a waaaaay better job than that soundguy/gal on duty? The Here Active Listening System lets you control how—and what—you hear in everyday life. Think of it as EQing your world. Whether or not users’ experiences with the technology can be considered “live” is up for debate, as wireless earbuds and a smartphone app act as mediators. Doppler Labs is making only 10,000 of the devices available in their first run, but if you like your wearables more permanent, consider these circuit board tattoos.