What • A device that turns a sports helmet into a surround-sound music speaker, eliminating the need for headphones and earbuds.

How much • $120.

Where to buy • www.tunebug.com.

Why buy it • Hear music through your helmet and keep your ears open for traffic and sirens. Charge it, load it with mp3 music from a number of devices and attach it to the helmet with its mounting device. Control volume and selections with touch switches. Made for bicyclists, skaters, skateboarders and skiers. It doesn't work with motorcycle helmets. Watch instruction videos at www.youtube.com/user/TunebugTechnology.