"Increased damage while sliding. Damage causes slight hearing loss."
— In-game description
Shockwave is an Epicgun perk in Call of Duty: Infinite Warfare. It causes damage dealt by the weapon to cause hearing loss to the player damaged, as well as increasing the weapon's damage while sliding. It only appears on the Epic variant of the Banshee, the Siren.
Shockwave once only allowed the player to cause hearing loss to enemy players they damage, however this was changed to also increasing damage while sliding in the February 3rd, 2017 patch.