Buddy-Link, an innovative, versatile buddy-signalling device, uses ultrasonic digital signals
to enable buddies to Keep in Touch with each other. Getting a buddy's attention has never been faster or easier. Send signals back and forth with ease.
Attaches unobtrusively to the outside of your facemask. Tap a button, and a pattern of 4-color LED lights will flash in
your buddy's peripheral vision.
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