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 company offers 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. and changed its name to Byrna Technologies Inc. in March 2020. Byrna Technologies Inc. was incorporated in 2005 and is headquartered in Andover, Massachusetts.