The Byrna Bad Guy Repellent has an effective range of 8-10ft with a 6 second continuous spray for the .5 oz and 12-15ft with a 10 second continuous spray for the 2oz. FeaturesAttacks the central nervous system, impairs vision, restricts breathing, and causes the nose to fill with mucus and skin to feel like it's on fire - quickly incapacitates attackerStream spray for maximum stopping power, less cross-contaminationAttacker Tracker UV Dye lasts up to 48 hours for law enforcement and victim to identify the bad guy(s)Oil-based4 Major Capsaicinoids (maximum allowed by law)Each Byrna Bad Guy Repellent canister comes with an attachable clip for quick access on belts, backpacks, purse straps, etc.