The Larkspur A41 Tank Commander's Communication System, used by the British Army around 1960, was designed to enhance in-vehicle communication within tanks and armored vehicles. This setup included a robust, padded headset equipped with an over-the-head band and ear cups that provided noise reduction, essential for operating in the confined and noisy environment of a tank. The headset's design ensured both comfort and durability, allowing commanders to wear it for extended periods during missions.

Connected to this headset was a handheld push-to-talk (PTT) microphone, a durable device that allowed tank commanders to transmit commands clearly with a simple press of a button. The PTT microphone was ergonomically shaped for ease of use, even with gloves, and minimized the need for complex switches, allowing for quick, precise communications under pressure.

The Larkspur system's development represented a significant step forward from older radio systems, ensuring greater clarity and reliability in armored vehicle operations. Its ruggedness and practical design reflected the British Army’s focus on functional, user-centered communication solutions, helping to coordinate complex maneuvers and maintain operational effectiveness in intense situations. The Larkspur headset and microphone were key elements in the evolution of British military communication technology