The M4 Pest Control Single-Detonation Cannon repels nuisance birds and wildlife with a loud "thunderclap"

This rugged M4 Pest Control Single-Detonation Cannon system delivers a harmless “thunderclap" equivalent to a 37mm cannon (130dB). Optional Rotomat Revolving Platform accessory (Item #RABRP, sold separately) allows cannon to rotate 360° for maximum effectiveness. Consistent Protection; Fires at regular interval, user-set from 30 seconds to 20 minutes. Long-Lasting: Operates 14 days at a 20-minute firing interval on 5-gal. LP tank (not included). Easy to Use: Does not require electricity or a battery.