Byrna Technologies Inc., a less-lethal self-defense technology company, develops, manufactures, and sells less-lethal personal security solutions in the United States, South Africa, Europe, South America, Asia, and Canada. The companys products include handheld personal security devices and shoulder-fired launchers designed for use by consumers and professional security customers without the need for a background check or firearms license; projectiles, such as chemical irritant, kinetic, and inert rounds; self-defense aerosol products comprising Byrna Bad Guy Repellent; and accessories and related safety products, such as Byrna Banshee, Byrna Shield, compressed carbon dioxide canisters, sighting systems, holsters, and Byrna-branded apparel. It sells its products to the consumer market through its Byrna e-commerce store and Amazon storefront, Side Hustle dealer program, premier dealers, and a network of outdoor and sporting goods stores either directly or through distributors; and to the professional security market through Train the trainer program. The company was formerly known as Security Devices International, Inc.