Sphero Specdrums (1 Ring) App-Enabled Musical Ring with Play Pad Included - Create Sounds, Loops, Beats for Musicians of Any Skill Level - STEAM Educational Music Toy for Kids, White : Toys & Games - Amazon.com
Sphero's Specdrums rings bring beatmaking to your fingertips
the 3D printed 'specdrums' ring lets you play music by tapping colors
Sphero Specdrums Review - MacRumors
Sphero Specdrums are rings that turn colors into music - Video - CNET
Amazon.com: Sphero Specdrums (1 Ring) App-Enabled Musical Ring with Play Pad Included - Create Sounds, Loops, Beats for Musicians of Any Skill Level - STEAM Educational Music Toy for Kids, White :