Yellow Jacket™ | Backup Battery, Stun Gun & a Protective Phone Case @Yellowjacketcase1 | Uploaded March 2018 | Updated October 2024, 2 hours ago.
Not only is the Yellow Jacket a self defense tool, but it also has a backup battery built into the design. This backup battery is capable of completely recharging your phone and will always retain enough power to fire the stun gun.