DZS Hand Pistol Stun Gun LED Light Rechargeable Battery. Day Zero Survival Hand Pistol Stun Gun LED Light Rechargeable Battery. There is no other stun gun available with this unique design, it‚€ôs compact, easy to carry and features a handy ultra-bright flashlight. It is convenient not only for lighting your way in dark places, but shine it in the eyes of someone you feel threatened by and it will temporarily blind them and give you a short window of opportunity to get to safety.