Genki's Wave for Work smart ... what feels like rubber. The shank, or band, is a two-part one that overlaps and sticks with a Velcro-like feel. You won't wear this ring all the time.

The Wave is a ring that controls sound. It is essentially a wearable MIDI controller that lets you play and modify sounds as it’s made, allowing you to play music in thin air. It’s a clever ...

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