Black Widow's Bite

Black Widow's Bite is a prototype electrical weapon, created by S.H.I.E.L.D.'s Tech Directorate, that can deliver powerful shocks from two shaped bracelets for the Black Widow. They light up with blue lines when activated and allow their wielder to electrocute their enemy on contact. No indication is given of the full effects of the weapon or how the wearer is insulated from it.

History
When the Chitauri forces invaded Earth during the Battle of New York, Natasha Romanoff used the Black Widow's Bite to electrocute several enemy troops by jamming her charged fists into them, while engaging them in her unique style of close combat.

Trivia

 * In Iron Man 2, Black Widow uses a pair of bracelets reminiscent similar to the Black Widow's Bite during her raid on Hammer Industries searching for Ivan Vanko. However, these bracelets do not have the same glove attachments and blue lights and are not used like the Black Widow's Bite in The Avengers.