Put them on, and boom, your music’s right there. Just a tap to play, double tap to skip. With a thickness of less than 0.5 inches, these smart glasses combine the best of both worlds. Eyewear and earbuds in one sleek package. Wait. Hello, bro? Think it’s just a cool new way to listen to tunes? Think again. Touch the side, and you’re making calls, snapping photos, all while looking like you just stepped out of the future.