Waveform is an Epic Fortnite Back Bling from the Twin Turntables set. Waveform was available via the Battle Pass during Season 6 and could be unlocked at Tier 38.
How-to Get the Waveform Back Bling
Waveform is part of Season 6. If that season is still currently in the game, you can obtain this item by purchasing and/or leveling up your Battle Pass.
Twin Turntables Set
Waveform is part of the Twin Turntables set! You can find all of the items that belong to it below.