Vibe Glasses (Earth-1: Pre-Crisis)

The Vibe glasses are pairs of glasses created by Cisco Ramon to help him witness his death in an erased timeline.

First glasses
In an erased timeline, Cisco was killed by Eobard Thawne under the disguise of Harrison Wells after the former discovered his true identity. Later in the new timeline, Cisco had visions of his death. Team Flash helped him build the glasses to let him go into his dream and find clues that can defeat Thawne.

Second glasses
After discovering the multiverse, Cisco decided to go to Earth-2 with Barry and Harry in order to find Zoom. However, due to the vibrational frequency of Earth-2 is different to Earth-1, the glasses no longer work. Later, Cisco decided to take his doppelgänger's glasses and used it as a replacement to the Vibe glasses.